/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:22:13,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:22:13,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:22:13,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-10 22:22:13,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 22:22:13,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 22:22:13,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 22:22:13,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 22:22:13,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 22:22:13,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 22:22:13,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 22:22:13,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 22:22:13,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 22:22:13,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 22:22:13,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 22:22:13,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 22:22:13,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 22:22:13,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:22:13,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:22:13,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:22:13,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-10 22:22:13,187 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:22:13,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:22:13,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:22:13,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:22:13,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:22:13,196 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:22:13,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:22:13,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:22:13,197 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:22:13,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:22:13,198 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:22:13,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:22:13,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:22:13,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:22:13,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:22:13,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:22:13,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:22:13,199 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:22:13,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:22:13,199 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:22:13,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:22:13,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:22:13,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:22:13,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:22:13,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:22:13,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:22:13,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:22:13,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:22:13,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:22:13,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:22:13,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:22:13,200 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:22:13,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:22:13,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:22:13,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:22:13,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:22:13,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:22:13,399 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:22:13,399 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:22:13,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2022-02-10 22:22:13,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97cac0766/b96dba88ef884e0ca83189fecab86346/FLAGac174e7dd [2022-02-10 22:22:13,872 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:22:13,872 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2022-02-10 22:22:13,883 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97cac0766/b96dba88ef884e0ca83189fecab86346/FLAGac174e7dd [2022-02-10 22:22:13,899 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97cac0766/b96dba88ef884e0ca83189fecab86346 [2022-02-10 22:22:13,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:22:13,903 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:22:13,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:22:13,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:22:13,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:22:13,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:22:13" (1/1) ... [2022-02-10 22:22:13,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea74798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:13, skipping insertion in model container [2022-02-10 22:22:13,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:22:13" (1/1) ... [2022-02-10 22:22:13,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:22:13,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:22:14,098 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2495,2508] [2022-02-10 22:22:14,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:22:14,108 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:22:14,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2495,2508] [2022-02-10 22:22:14,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:22:14,138 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:22:14,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:14 WrapperNode [2022-02-10 22:22:14,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:22:14,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:22:14,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:22:14,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:22:14,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:14" (1/1) ... [2022-02-10 22:22:14,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:14" (1/1) ... [2022-02-10 22:22:14,190 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 158 [2022-02-10 22:22:14,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:22:14,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:22:14,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:22:14,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:22:14,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:14" (1/1) ... [2022-02-10 22:22:14,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:14" (1/1) ... [2022-02-10 22:22:14,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:14" (1/1) ... [2022-02-10 22:22:14,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:14" (1/1) ... [2022-02-10 22:22:14,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:14" (1/1) ... [2022-02-10 22:22:14,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:14" (1/1) ... [2022-02-10 22:22:14,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:14" (1/1) ... [2022-02-10 22:22:14,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:22:14,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:22:14,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:22:14,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:22:14,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:14" (1/1) ... [2022-02-10 22:22:14,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:22:14,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:22:14,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 22:22:14,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 22:22:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:22:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 22:22:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 22:22:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 22:22:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 22:22:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:22:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:22:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:22:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:22:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:22:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:22:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:22:14,268 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 22:22:14,334 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:22:14,336 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:22:14,562 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:22:14,571 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:22:14,571 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-10 22:22:14,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:22:14 BoogieIcfgContainer [2022-02-10 22:22:14,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:22:14,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:22:14,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:22:14,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:22:14,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:22:13" (1/3) ... [2022-02-10 22:22:14,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a879e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:22:14, skipping insertion in model container [2022-02-10 22:22:14,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:14" (2/3) ... [2022-02-10 22:22:14,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a879e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:22:14, skipping insertion in model container [2022-02-10 22:22:14,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:22:14" (3/3) ... [2022-02-10 22:22:14,599 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2022-02-10 22:22:14,604 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:22:14,604 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:22:14,604 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:22:14,604 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:22:14,659 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,659 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,660 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,660 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,660 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,660 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,661 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,661 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,661 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,661 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,661 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,662 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,662 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,662 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,663 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,663 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,663 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,663 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,663 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,664 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,664 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,664 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,664 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,664 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,665 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,665 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,665 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,665 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,665 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,665 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,666 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,666 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,666 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,666 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,666 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,666 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,667 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,667 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,667 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,667 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,667 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,667 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,668 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,668 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,675 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,675 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,675 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,675 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,676 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,676 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,676 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,676 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,676 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,676 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,676 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,677 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,677 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,677 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,677 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,677 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,677 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,678 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,678 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,678 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,678 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,678 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,678 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,678 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,679 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,679 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,679 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,680 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,680 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,680 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,680 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,681 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,681 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,681 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,681 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,681 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,681 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,682 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,682 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,682 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,682 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,682 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,683 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,683 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,683 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,683 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,683 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,684 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,684 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,684 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,684 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,685 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,685 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,685 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,685 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,685 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,686 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,686 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,686 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,686 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,686 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,687 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,687 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,694 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,696 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,696 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,697 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,697 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,697 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,699 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,702 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,702 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,703 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,703 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,704 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,705 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,705 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,705 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,705 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,705 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,706 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,706 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,706 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,706 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,706 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,706 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,707 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,707 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,708 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,708 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,708 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,708 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,708 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,708 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,709 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,710 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,710 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,710 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,710 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,710 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,710 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,710 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,711 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,711 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,723 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,723 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,724 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,724 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,724 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,724 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,724 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,724 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,724 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,725 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,725 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,725 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,725 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,725 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,725 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,725 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,726 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,726 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,726 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,726 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,726 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,726 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,726 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,727 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,727 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,727 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,727 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,727 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,727 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,728 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,728 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,728 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,728 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,728 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,729 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,729 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,729 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,729 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,729 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,730 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,731 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,732 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,732 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,732 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,732 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,732 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,733 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,734 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,735 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,735 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,735 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,735 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,735 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,736 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,736 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,736 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,736 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,736 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,736 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,737 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,737 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,737 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,738 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,738 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,750 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,750 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,751 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,751 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,751 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,751 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,751 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,751 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,751 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,752 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,752 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,752 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,752 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,752 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,752 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,753 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,755 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,755 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,756 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,756 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,756 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,757 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,757 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,757 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,757 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,758 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,758 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,758 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,758 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,758 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,758 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,758 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:14,767 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 22:22:14,812 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:22:14,819 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 22:22:14,819 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-10 22:22:14,835 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 198 places, 210 transitions, 436 flow [2022-02-10 22:22:15,202 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11777 states, 11776 states have (on average 2.9679857336956523) internal successors, (34951), 11776 states have internal predecessors, (34951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:15,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 11777 states, 11776 states have (on average 2.9679857336956523) internal successors, (34951), 11776 states have internal predecessors, (34951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:15,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:15,374 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:15,375 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:15,376 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:15,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:15,384 INFO L85 PathProgramCache]: Analyzing trace with hash 997613538, now seen corresponding path program 1 times [2022-02-10 22:22:15,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:15,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172080600] [2022-02-10 22:22:15,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:15,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:15,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:15,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:15,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172080600] [2022-02-10 22:22:15,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172080600] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:15,871 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:15,871 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:15,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829651078] [2022-02-10 22:22:15,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:15,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:15,877 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:15,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:15,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:15,940 INFO L87 Difference]: Start difference. First operand has 11777 states, 11776 states have (on average 2.9679857336956523) internal successors, (34951), 11776 states have internal predecessors, (34951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:16,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:16,526 INFO L93 Difference]: Finished difference Result 17273 states and 48971 transitions. [2022-02-10 22:22:16,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:22:16,528 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:16,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:16,666 INFO L225 Difference]: With dead ends: 17273 [2022-02-10 22:22:16,666 INFO L226 Difference]: Without dead ends: 15483 [2022-02-10 22:22:16,668 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:16,671 INFO L934 BasicCegarLoop]: 441 mSDtfsCounter, 565 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2935 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:16,671 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 2935 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:22:16,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15483 states. [2022-02-10 22:22:17,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15483 to 11190. [2022-02-10 22:22:17,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11190 states, 11189 states have (on average 2.897220484404326) internal successors, (32417), 11189 states have internal predecessors, (32417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:17,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11190 states to 11190 states and 32417 transitions. [2022-02-10 22:22:17,240 INFO L78 Accepts]: Start accepts. Automaton has 11190 states and 32417 transitions. Word has length 101 [2022-02-10 22:22:17,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:17,243 INFO L470 AbstractCegarLoop]: Abstraction has 11190 states and 32417 transitions. [2022-02-10 22:22:17,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:17,244 INFO L276 IsEmpty]: Start isEmpty. Operand 11190 states and 32417 transitions. [2022-02-10 22:22:17,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:17,281 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:17,281 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:17,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:22:17,282 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:17,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:17,286 INFO L85 PathProgramCache]: Analyzing trace with hash 672990146, now seen corresponding path program 1 times [2022-02-10 22:22:17,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:17,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778393519] [2022-02-10 22:22:17,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:17,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:17,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:17,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:17,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778393519] [2022-02-10 22:22:17,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778393519] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:17,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:17,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:22:17,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212492125] [2022-02-10 22:22:17,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:17,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:22:17,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:17,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:22:17,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:22:17,372 INFO L87 Difference]: Start difference. First operand 11190 states and 32417 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:17,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:17,625 INFO L93 Difference]: Finished difference Result 15448 states and 43794 transitions. [2022-02-10 22:22:17,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:22:17,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:17,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:17,687 INFO L225 Difference]: With dead ends: 15448 [2022-02-10 22:22:17,688 INFO L226 Difference]: Without dead ends: 15393 [2022-02-10 22:22:17,688 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:22:17,689 INFO L934 BasicCegarLoop]: 266 mSDtfsCounter, 122 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:17,690 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 432 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:22:17,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15393 states. [2022-02-10 22:22:18,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15393 to 11390. [2022-02-10 22:22:18,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11390 states, 11389 states have (on average 2.8798840986917202) internal successors, (32799), 11389 states have internal predecessors, (32799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:18,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11390 states to 11390 states and 32799 transitions. [2022-02-10 22:22:18,094 INFO L78 Accepts]: Start accepts. Automaton has 11390 states and 32799 transitions. Word has length 101 [2022-02-10 22:22:18,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:18,095 INFO L470 AbstractCegarLoop]: Abstraction has 11390 states and 32799 transitions. [2022-02-10 22:22:18,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:18,096 INFO L276 IsEmpty]: Start isEmpty. Operand 11390 states and 32799 transitions. [2022-02-10 22:22:18,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:18,128 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:18,129 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:18,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:22:18,130 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:18,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:18,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1130247864, now seen corresponding path program 1 times [2022-02-10 22:22:18,130 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:18,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576599303] [2022-02-10 22:22:18,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:18,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:18,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:18,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:18,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576599303] [2022-02-10 22:22:18,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576599303] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:18,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:18,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:22:18,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976819652] [2022-02-10 22:22:18,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:18,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:22:18,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:18,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:22:18,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:22:18,226 INFO L87 Difference]: Start difference. First operand 11390 states and 32799 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:18,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:18,359 INFO L93 Difference]: Finished difference Result 15691 states and 44284 transitions. [2022-02-10 22:22:18,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:22:18,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:18,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:18,489 INFO L225 Difference]: With dead ends: 15691 [2022-02-10 22:22:18,489 INFO L226 Difference]: Without dead ends: 15450 [2022-02-10 22:22:18,489 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:22:18,491 INFO L934 BasicCegarLoop]: 266 mSDtfsCounter, 126 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:18,491 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 432 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:22:18,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15450 states. [2022-02-10 22:22:18,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15450 to 11400. [2022-02-10 22:22:18,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11400 states, 11399 states have (on average 2.879287656812001) internal successors, (32821), 11399 states have internal predecessors, (32821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:18,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11400 states to 11400 states and 32821 transitions. [2022-02-10 22:22:18,954 INFO L78 Accepts]: Start accepts. Automaton has 11400 states and 32821 transitions. Word has length 101 [2022-02-10 22:22:18,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:18,954 INFO L470 AbstractCegarLoop]: Abstraction has 11400 states and 32821 transitions. [2022-02-10 22:22:18,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:18,955 INFO L276 IsEmpty]: Start isEmpty. Operand 11400 states and 32821 transitions. [2022-02-10 22:22:18,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:18,992 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:18,992 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:18,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 22:22:18,993 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:18,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:18,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1378875394, now seen corresponding path program 1 times [2022-02-10 22:22:18,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:18,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892040030] [2022-02-10 22:22:18,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:18,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:19,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:19,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:19,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892040030] [2022-02-10 22:22:19,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892040030] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:19,071 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:19,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:22:19,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195206577] [2022-02-10 22:22:19,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:19,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:22:19,072 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:19,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:22:19,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:22:19,073 INFO L87 Difference]: Start difference. First operand 11400 states and 32821 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:19,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:19,144 INFO L93 Difference]: Finished difference Result 11167 states and 31220 transitions. [2022-02-10 22:22:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:22:19,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:19,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:19,173 INFO L225 Difference]: With dead ends: 11167 [2022-02-10 22:22:19,173 INFO L226 Difference]: Without dead ends: 11167 [2022-02-10 22:22:19,173 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:22:19,176 INFO L934 BasicCegarLoop]: 202 mSDtfsCounter, 135 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:19,177 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 284 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:22:19,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11167 states. [2022-02-10 22:22:19,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11167 to 10541. [2022-02-10 22:22:19,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10541 states, 10540 states have (on average 2.8139468690702087) internal successors, (29659), 10540 states have internal predecessors, (29659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:19,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10541 states to 10541 states and 29659 transitions. [2022-02-10 22:22:19,462 INFO L78 Accepts]: Start accepts. Automaton has 10541 states and 29659 transitions. Word has length 101 [2022-02-10 22:22:19,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:19,463 INFO L470 AbstractCegarLoop]: Abstraction has 10541 states and 29659 transitions. [2022-02-10 22:22:19,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:19,463 INFO L276 IsEmpty]: Start isEmpty. Operand 10541 states and 29659 transitions. [2022-02-10 22:22:19,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:19,486 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:19,486 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:19,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 22:22:19,486 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:19,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:19,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1511509720, now seen corresponding path program 1 times [2022-02-10 22:22:19,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:19,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123511866] [2022-02-10 22:22:19,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:19,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:19,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:19,711 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:19,711 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123511866] [2022-02-10 22:22:19,711 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123511866] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:19,711 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:19,712 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:19,712 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723646705] [2022-02-10 22:22:19,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:19,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:19,713 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:19,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:19,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:19,714 INFO L87 Difference]: Start difference. First operand 10541 states and 29659 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:20,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:20,140 INFO L93 Difference]: Finished difference Result 13249 states and 36739 transitions. [2022-02-10 22:22:20,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-10 22:22:20,143 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:20,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:20,175 INFO L225 Difference]: With dead ends: 13249 [2022-02-10 22:22:20,175 INFO L226 Difference]: Without dead ends: 12532 [2022-02-10 22:22:20,176 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-02-10 22:22:20,179 INFO L934 BasicCegarLoop]: 386 mSDtfsCounter, 409 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2390 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:20,180 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2390 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:20,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12532 states. [2022-02-10 22:22:20,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12532 to 10399. [2022-02-10 22:22:20,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10399 states, 10398 states have (on average 2.8191959992306215) internal successors, (29314), 10398 states have internal predecessors, (29314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:20,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10399 states to 10399 states and 29314 transitions. [2022-02-10 22:22:20,495 INFO L78 Accepts]: Start accepts. Automaton has 10399 states and 29314 transitions. Word has length 101 [2022-02-10 22:22:20,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:20,496 INFO L470 AbstractCegarLoop]: Abstraction has 10399 states and 29314 transitions. [2022-02-10 22:22:20,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:20,496 INFO L276 IsEmpty]: Start isEmpty. Operand 10399 states and 29314 transitions. [2022-02-10 22:22:20,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:20,517 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:20,517 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:20,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 22:22:20,518 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:20,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:20,518 INFO L85 PathProgramCache]: Analyzing trace with hash 770227354, now seen corresponding path program 2 times [2022-02-10 22:22:20,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:20,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872852917] [2022-02-10 22:22:20,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:20,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:20,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:20,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:20,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872852917] [2022-02-10 22:22:20,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872852917] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:20,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:20,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:20,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094534307] [2022-02-10 22:22:20,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:20,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:20,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:20,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:20,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:20,664 INFO L87 Difference]: Start difference. First operand 10399 states and 29314 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:21,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:21,102 INFO L93 Difference]: Finished difference Result 11691 states and 32723 transitions. [2022-02-10 22:22:21,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:22:21,102 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:21,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:21,134 INFO L225 Difference]: With dead ends: 11691 [2022-02-10 22:22:21,134 INFO L226 Difference]: Without dead ends: 11163 [2022-02-10 22:22:21,134 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-02-10 22:22:21,135 INFO L934 BasicCegarLoop]: 346 mSDtfsCounter, 206 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:21,135 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 2515 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:21,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11163 states. [2022-02-10 22:22:21,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11163 to 10403. [2022-02-10 22:22:21,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10403 states, 10402 states have (on average 2.818784849067487) internal successors, (29321), 10402 states have internal predecessors, (29321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:21,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10403 states to 10403 states and 29321 transitions. [2022-02-10 22:22:21,428 INFO L78 Accepts]: Start accepts. Automaton has 10403 states and 29321 transitions. Word has length 101 [2022-02-10 22:22:21,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:21,428 INFO L470 AbstractCegarLoop]: Abstraction has 10403 states and 29321 transitions. [2022-02-10 22:22:21,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:21,429 INFO L276 IsEmpty]: Start isEmpty. Operand 10403 states and 29321 transitions. [2022-02-10 22:22:21,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:21,449 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:21,449 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:21,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 22:22:21,450 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:21,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:21,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1737804988, now seen corresponding path program 3 times [2022-02-10 22:22:21,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:21,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167897895] [2022-02-10 22:22:21,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:21,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:21,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:21,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:21,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167897895] [2022-02-10 22:22:21,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167897895] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:21,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:21,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:21,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189215615] [2022-02-10 22:22:21,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:21,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:21,582 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:21,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:21,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:21,582 INFO L87 Difference]: Start difference. First operand 10403 states and 29321 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:21,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:21,958 INFO L93 Difference]: Finished difference Result 11527 states and 32293 transitions. [2022-02-10 22:22:21,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:22:21,959 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:21,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:21,985 INFO L225 Difference]: With dead ends: 11527 [2022-02-10 22:22:21,985 INFO L226 Difference]: Without dead ends: 11042 [2022-02-10 22:22:21,986 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:22:21,989 INFO L934 BasicCegarLoop]: 334 mSDtfsCounter, 166 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:21,989 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 2450 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:22,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-02-10 22:22:22,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 10407. [2022-02-10 22:22:22,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10407 states, 10406 states have (on average 2.818374014991351) internal successors, (29328), 10406 states have internal predecessors, (29328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:22,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10407 states to 10407 states and 29328 transitions. [2022-02-10 22:22:22,198 INFO L78 Accepts]: Start accepts. Automaton has 10407 states and 29328 transitions. Word has length 101 [2022-02-10 22:22:22,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:22,199 INFO L470 AbstractCegarLoop]: Abstraction has 10407 states and 29328 transitions. [2022-02-10 22:22:22,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:22,199 INFO L276 IsEmpty]: Start isEmpty. Operand 10407 states and 29328 transitions. [2022-02-10 22:22:22,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:22,217 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:22,218 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:22,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 22:22:22,218 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:22,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:22,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1056184334, now seen corresponding path program 4 times [2022-02-10 22:22:22,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:22,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697641978] [2022-02-10 22:22:22,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:22,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:22,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:22,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:22,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697641978] [2022-02-10 22:22:22,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697641978] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:22,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:22,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:22,370 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540103339] [2022-02-10 22:22:22,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:22,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:22,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:22,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:22,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:22,371 INFO L87 Difference]: Start difference. First operand 10407 states and 29328 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:22,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:22,735 INFO L93 Difference]: Finished difference Result 11461 states and 32116 transitions. [2022-02-10 22:22:22,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-10 22:22:22,736 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:22,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:22,760 INFO L225 Difference]: With dead ends: 11461 [2022-02-10 22:22:22,760 INFO L226 Difference]: Without dead ends: 10953 [2022-02-10 22:22:22,761 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:22:22,761 INFO L934 BasicCegarLoop]: 323 mSDtfsCounter, 161 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:22,761 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 2076 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:22,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10953 states. [2022-02-10 22:22:22,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10953 to 10381. [2022-02-10 22:22:22,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10381 states, 10380 states have (on average 2.8197495183044317) internal successors, (29269), 10380 states have internal predecessors, (29269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:22,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10381 states to 10381 states and 29269 transitions. [2022-02-10 22:22:22,957 INFO L78 Accepts]: Start accepts. Automaton has 10381 states and 29269 transitions. Word has length 101 [2022-02-10 22:22:22,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:22,959 INFO L470 AbstractCegarLoop]: Abstraction has 10381 states and 29269 transitions. [2022-02-10 22:22:22,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:22,960 INFO L276 IsEmpty]: Start isEmpty. Operand 10381 states and 29269 transitions. [2022-02-10 22:22:22,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:22,978 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:22,978 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:22,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 22:22:22,978 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:22,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:22,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1996165324, now seen corresponding path program 5 times [2022-02-10 22:22:22,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:22,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138416002] [2022-02-10 22:22:22,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:22,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:23,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:23,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:23,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138416002] [2022-02-10 22:22:23,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138416002] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:23,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:23,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:23,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788330532] [2022-02-10 22:22:23,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:23,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:23,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:23,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:23,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:23,093 INFO L87 Difference]: Start difference. First operand 10381 states and 29269 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:23,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:23,363 INFO L93 Difference]: Finished difference Result 11569 states and 32417 transitions. [2022-02-10 22:22:23,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:22:23,363 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:23,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:23,381 INFO L225 Difference]: With dead ends: 11569 [2022-02-10 22:22:23,381 INFO L226 Difference]: Without dead ends: 11084 [2022-02-10 22:22:23,381 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:22:23,382 INFO L934 BasicCegarLoop]: 286 mSDtfsCounter, 114 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:23,382 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 2161 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:23,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11084 states. [2022-02-10 22:22:23,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11084 to 10393. [2022-02-10 22:22:23,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10393 states, 10392 states have (on average 2.819284064665127) internal successors, (29298), 10392 states have internal predecessors, (29298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:23,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10393 states to 10393 states and 29298 transitions. [2022-02-10 22:22:23,669 INFO L78 Accepts]: Start accepts. Automaton has 10393 states and 29298 transitions. Word has length 101 [2022-02-10 22:22:23,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:23,669 INFO L470 AbstractCegarLoop]: Abstraction has 10393 states and 29298 transitions. [2022-02-10 22:22:23,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:23,669 INFO L276 IsEmpty]: Start isEmpty. Operand 10393 states and 29298 transitions. [2022-02-10 22:22:23,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:23,686 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:23,686 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:23,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 22:22:23,686 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:23,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:23,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1314544670, now seen corresponding path program 6 times [2022-02-10 22:22:23,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:23,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062796517] [2022-02-10 22:22:23,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:23,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:23,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:23,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:23,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062796517] [2022-02-10 22:22:23,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062796517] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:23,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:23,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:23,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608486985] [2022-02-10 22:22:23,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:23,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:23,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:23,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:23,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:23,797 INFO L87 Difference]: Start difference. First operand 10393 states and 29298 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:24,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:24,067 INFO L93 Difference]: Finished difference Result 11527 states and 32306 transitions. [2022-02-10 22:22:24,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:22:24,067 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:24,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:24,088 INFO L225 Difference]: With dead ends: 11527 [2022-02-10 22:22:24,088 INFO L226 Difference]: Without dead ends: 11041 [2022-02-10 22:22:24,089 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:22:24,089 INFO L934 BasicCegarLoop]: 286 mSDtfsCounter, 106 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:24,089 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 2087 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:24,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11041 states. [2022-02-10 22:22:24,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11041 to 10389. [2022-02-10 22:22:24,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10389 states, 10388 states have (on average 2.8193107431651905) internal successors, (29287), 10388 states have internal predecessors, (29287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:24,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10389 states to 10389 states and 29287 transitions. [2022-02-10 22:22:24,389 INFO L78 Accepts]: Start accepts. Automaton has 10389 states and 29287 transitions. Word has length 101 [2022-02-10 22:22:24,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:24,389 INFO L470 AbstractCegarLoop]: Abstraction has 10389 states and 29287 transitions. [2022-02-10 22:22:24,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:24,389 INFO L276 IsEmpty]: Start isEmpty. Operand 10389 states and 29287 transitions. [2022-02-10 22:22:24,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:24,408 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:24,409 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:24,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-10 22:22:24,409 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:24,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:24,410 INFO L85 PathProgramCache]: Analyzing trace with hash -163430860, now seen corresponding path program 7 times [2022-02-10 22:22:24,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:24,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50226525] [2022-02-10 22:22:24,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:24,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:24,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:24,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50226525] [2022-02-10 22:22:24,542 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50226525] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:24,542 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:24,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:24,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976295794] [2022-02-10 22:22:24,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:24,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:24,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:24,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:24,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:24,543 INFO L87 Difference]: Start difference. First operand 10389 states and 29287 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:24,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:24,831 INFO L93 Difference]: Finished difference Result 11627 states and 32565 transitions. [2022-02-10 22:22:24,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:24,831 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:24,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:24,855 INFO L225 Difference]: With dead ends: 11627 [2022-02-10 22:22:24,856 INFO L226 Difference]: Without dead ends: 11101 [2022-02-10 22:22:24,856 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:22:24,857 INFO L934 BasicCegarLoop]: 286 mSDtfsCounter, 144 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:24,857 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1717 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:24,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11101 states. [2022-02-10 22:22:25,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11101 to 10385. [2022-02-10 22:22:25,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10385 states, 10384 states have (on average 2.819337442218798) internal successors, (29276), 10384 states have internal predecessors, (29276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:25,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10385 states to 10385 states and 29276 transitions. [2022-02-10 22:22:25,115 INFO L78 Accepts]: Start accepts. Automaton has 10385 states and 29276 transitions. Word has length 101 [2022-02-10 22:22:25,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:25,115 INFO L470 AbstractCegarLoop]: Abstraction has 10385 states and 29276 transitions. [2022-02-10 22:22:25,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:25,115 INFO L276 IsEmpty]: Start isEmpty. Operand 10385 states and 29276 transitions. [2022-02-10 22:22:25,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:25,135 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:25,135 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:25,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-10 22:22:25,135 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:25,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:25,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1465189348, now seen corresponding path program 8 times [2022-02-10 22:22:25,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:25,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374276987] [2022-02-10 22:22:25,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:25,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:25,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:25,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:25,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374276987] [2022-02-10 22:22:25,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374276987] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:25,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:25,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:25,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403750119] [2022-02-10 22:22:25,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:25,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:25,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:25,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:25,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:25,273 INFO L87 Difference]: Start difference. First operand 10385 states and 29276 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:25,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:25,566 INFO L93 Difference]: Finished difference Result 11677 states and 32685 transitions. [2022-02-10 22:22:25,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 22:22:25,566 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:25,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:25,589 INFO L225 Difference]: With dead ends: 11677 [2022-02-10 22:22:25,589 INFO L226 Difference]: Without dead ends: 11149 [2022-02-10 22:22:25,590 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:25,590 INFO L934 BasicCegarLoop]: 299 mSDtfsCounter, 159 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:25,591 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 1711 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:25,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11149 states. [2022-02-10 22:22:25,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11149 to 10389. [2022-02-10 22:22:25,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10389 states, 10388 states have (on average 2.8189256834809395) internal successors, (29283), 10388 states have internal predecessors, (29283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:25,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10389 states to 10389 states and 29283 transitions. [2022-02-10 22:22:25,836 INFO L78 Accepts]: Start accepts. Automaton has 10389 states and 29283 transitions. Word has length 101 [2022-02-10 22:22:25,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:25,836 INFO L470 AbstractCegarLoop]: Abstraction has 10389 states and 29283 transitions. [2022-02-10 22:22:25,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:25,836 INFO L276 IsEmpty]: Start isEmpty. Operand 10389 states and 29283 transitions. [2022-02-10 22:22:25,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:25,855 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:25,856 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:25,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-10 22:22:25,856 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:25,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:25,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1042842994, now seen corresponding path program 9 times [2022-02-10 22:22:25,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:25,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433820683] [2022-02-10 22:22:25,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:25,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:25,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:25,968 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:25,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433820683] [2022-02-10 22:22:25,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433820683] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:25,968 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:25,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:25,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637809118] [2022-02-10 22:22:25,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:25,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:25,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:25,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:25,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:25,969 INFO L87 Difference]: Start difference. First operand 10389 states and 29283 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:26,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:26,248 INFO L93 Difference]: Finished difference Result 11521 states and 32277 transitions. [2022-02-10 22:22:26,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:22:26,248 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:26,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:26,269 INFO L225 Difference]: With dead ends: 11521 [2022-02-10 22:22:26,269 INFO L226 Difference]: Without dead ends: 11036 [2022-02-10 22:22:26,270 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:22:26,270 INFO L934 BasicCegarLoop]: 287 mSDtfsCounter, 122 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2159 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:26,270 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 2159 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:26,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11036 states. [2022-02-10 22:22:26,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11036 to 10393. [2022-02-10 22:22:26,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10393 states, 10392 states have (on average 2.8185142417244036) internal successors, (29290), 10392 states have internal predecessors, (29290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:26,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10393 states to 10393 states and 29290 transitions. [2022-02-10 22:22:26,475 INFO L78 Accepts]: Start accepts. Automaton has 10393 states and 29290 transitions. Word has length 101 [2022-02-10 22:22:26,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:26,476 INFO L470 AbstractCegarLoop]: Abstraction has 10393 states and 29290 transitions. [2022-02-10 22:22:26,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand 10393 states and 29290 transitions. [2022-02-10 22:22:26,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:26,492 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:26,492 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:26,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-10 22:22:26,492 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:26,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:26,493 INFO L85 PathProgramCache]: Analyzing trace with hash -361222340, now seen corresponding path program 10 times [2022-02-10 22:22:26,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:26,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241597266] [2022-02-10 22:22:26,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:26,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:26,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:26,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:26,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241597266] [2022-02-10 22:22:26,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241597266] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:26,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:26,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:26,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441203230] [2022-02-10 22:22:26,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:26,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:26,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:26,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:26,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:26,637 INFO L87 Difference]: Start difference. First operand 10393 states and 29290 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:26,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:26,911 INFO L93 Difference]: Finished difference Result 11447 states and 32078 transitions. [2022-02-10 22:22:26,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:22:26,912 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:26,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:26,935 INFO L225 Difference]: With dead ends: 11447 [2022-02-10 22:22:26,935 INFO L226 Difference]: Without dead ends: 10935 [2022-02-10 22:22:26,936 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:22:26,936 INFO L934 BasicCegarLoop]: 282 mSDtfsCounter, 109 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:26,937 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 2126 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:26,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10935 states. [2022-02-10 22:22:27,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10935 to 10363. [2022-02-10 22:22:27,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10363 states, 10362 states have (on average 2.820304960432349) internal successors, (29224), 10362 states have internal predecessors, (29224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:27,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10363 states to 10363 states and 29224 transitions. [2022-02-10 22:22:27,156 INFO L78 Accepts]: Start accepts. Automaton has 10363 states and 29224 transitions. Word has length 101 [2022-02-10 22:22:27,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:27,157 INFO L470 AbstractCegarLoop]: Abstraction has 10363 states and 29224 transitions. [2022-02-10 22:22:27,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:27,157 INFO L276 IsEmpty]: Start isEmpty. Operand 10363 states and 29224 transitions. [2022-02-10 22:22:27,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:27,172 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:27,172 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:27,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-10 22:22:27,173 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:27,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:27,173 INFO L85 PathProgramCache]: Analyzing trace with hash -774742998, now seen corresponding path program 11 times [2022-02-10 22:22:27,173 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:27,174 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152158079] [2022-02-10 22:22:27,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:27,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:27,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:27,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:27,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152158079] [2022-02-10 22:22:27,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152158079] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:27,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:27,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:27,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803653206] [2022-02-10 22:22:27,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:27,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:27,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:27,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:27,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:27,286 INFO L87 Difference]: Start difference. First operand 10363 states and 29224 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:27,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:27,588 INFO L93 Difference]: Finished difference Result 11966 states and 33522 transitions. [2022-02-10 22:22:27,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:22:27,588 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:27,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:27,616 INFO L225 Difference]: With dead ends: 11966 [2022-02-10 22:22:27,616 INFO L226 Difference]: Without dead ends: 11481 [2022-02-10 22:22:27,617 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:22:27,617 INFO L934 BasicCegarLoop]: 286 mSDtfsCounter, 128 mSDsluCounter, 1918 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2162 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:27,618 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 2162 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:27,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11481 states. [2022-02-10 22:22:27,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11481 to 10383. [2022-02-10 22:22:27,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 10382 states have (on average 2.8197842419572337) internal successors, (29275), 10382 states have internal predecessors, (29275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:27,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 29275 transitions. [2022-02-10 22:22:27,808 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 29275 transitions. Word has length 101 [2022-02-10 22:22:27,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:27,808 INFO L470 AbstractCegarLoop]: Abstraction has 10383 states and 29275 transitions. [2022-02-10 22:22:27,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:27,808 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 29275 transitions. [2022-02-10 22:22:27,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:27,826 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:27,826 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:27,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-10 22:22:27,827 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:27,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:27,827 INFO L85 PathProgramCache]: Analyzing trace with hash -93122344, now seen corresponding path program 12 times [2022-02-10 22:22:27,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:27,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272738176] [2022-02-10 22:22:27,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:27,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:27,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:27,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:27,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272738176] [2022-02-10 22:22:27,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272738176] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:27,943 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:27,943 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:27,943 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685639157] [2022-02-10 22:22:27,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:27,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:27,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:27,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:27,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:27,945 INFO L87 Difference]: Start difference. First operand 10383 states and 29275 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:28,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:28,240 INFO L93 Difference]: Finished difference Result 11924 states and 33411 transitions. [2022-02-10 22:22:28,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:22:28,240 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:28,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:28,264 INFO L225 Difference]: With dead ends: 11924 [2022-02-10 22:22:28,264 INFO L226 Difference]: Without dead ends: 11438 [2022-02-10 22:22:28,265 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:22:28,265 INFO L934 BasicCegarLoop]: 286 mSDtfsCounter, 118 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:28,266 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 2342 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:28,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11438 states. [2022-02-10 22:22:28,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11438 to 10379. [2022-02-10 22:22:28,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 2.8198111389477742) internal successors, (29264), 10378 states have internal predecessors, (29264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:28,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 29264 transitions. [2022-02-10 22:22:28,451 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 29264 transitions. Word has length 101 [2022-02-10 22:22:28,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:28,452 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 29264 transitions. [2022-02-10 22:22:28,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:28,452 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 29264 transitions. [2022-02-10 22:22:28,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:28,467 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:28,467 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:28,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-10 22:22:28,467 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:28,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:28,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1057991466, now seen corresponding path program 13 times [2022-02-10 22:22:28,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:28,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807388035] [2022-02-10 22:22:28,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:28,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:28,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:28,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:28,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807388035] [2022-02-10 22:22:28,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807388035] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:28,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:28,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:28,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045682331] [2022-02-10 22:22:28,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:28,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:28,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:28,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:28,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:28,620 INFO L87 Difference]: Start difference. First operand 10379 states and 29264 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:28,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:28,912 INFO L93 Difference]: Finished difference Result 12056 states and 33758 transitions. [2022-02-10 22:22:28,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 22:22:28,912 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:28,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:28,930 INFO L225 Difference]: With dead ends: 12056 [2022-02-10 22:22:28,930 INFO L226 Difference]: Without dead ends: 11530 [2022-02-10 22:22:28,931 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:28,931 INFO L934 BasicCegarLoop]: 292 mSDtfsCounter, 156 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:28,931 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 1689 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:28,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11530 states. [2022-02-10 22:22:29,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11530 to 10375. [2022-02-10 22:22:29,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10375 states, 10374 states have (on average 2.8198380566801617) internal successors, (29253), 10374 states have internal predecessors, (29253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:29,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10375 states to 10375 states and 29253 transitions. [2022-02-10 22:22:29,077 INFO L78 Accepts]: Start accepts. Automaton has 10375 states and 29253 transitions. Word has length 101 [2022-02-10 22:22:29,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:29,078 INFO L470 AbstractCegarLoop]: Abstraction has 10375 states and 29253 transitions. [2022-02-10 22:22:29,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:29,078 INFO L276 IsEmpty]: Start isEmpty. Operand 10375 states and 29253 transitions. [2022-02-10 22:22:29,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:29,092 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:29,092 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:29,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-10 22:22:29,093 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:29,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:29,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1608355622, now seen corresponding path program 14 times [2022-02-10 22:22:29,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:29,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260994515] [2022-02-10 22:22:29,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:29,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:29,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:29,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:29,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260994515] [2022-02-10 22:22:29,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260994515] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:29,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:29,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:29,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769050486] [2022-02-10 22:22:29,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:29,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:29,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:29,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:29,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:29,202 INFO L87 Difference]: Start difference. First operand 10375 states and 29253 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:29,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:29,491 INFO L93 Difference]: Finished difference Result 12058 states and 33746 transitions. [2022-02-10 22:22:29,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:29,492 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:29,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:29,515 INFO L225 Difference]: With dead ends: 12058 [2022-02-10 22:22:29,516 INFO L226 Difference]: Without dead ends: 11530 [2022-02-10 22:22:29,516 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:29,517 INFO L934 BasicCegarLoop]: 289 mSDtfsCounter, 173 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:29,517 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 1981 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:29,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11530 states. [2022-02-10 22:22:29,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11530 to 10379. [2022-02-10 22:22:29,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 2.819425708228946) internal successors, (29260), 10378 states have internal predecessors, (29260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:29,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 29260 transitions. [2022-02-10 22:22:29,703 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 29260 transitions. Word has length 101 [2022-02-10 22:22:29,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:29,703 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 29260 transitions. [2022-02-10 22:22:29,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:29,704 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 29260 transitions. [2022-02-10 22:22:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:29,720 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:29,720 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:29,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-10 22:22:29,720 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:29,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:29,721 INFO L85 PathProgramCache]: Analyzing trace with hash 178579332, now seen corresponding path program 15 times [2022-02-10 22:22:29,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:29,721 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51110791] [2022-02-10 22:22:29,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:29,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:29,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:29,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:29,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51110791] [2022-02-10 22:22:29,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51110791] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:29,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:29,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:29,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939962592] [2022-02-10 22:22:29,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:29,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:29,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:29,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:29,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:29,830 INFO L87 Difference]: Start difference. First operand 10379 states and 29260 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:30,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:30,104 INFO L93 Difference]: Finished difference Result 11926 states and 33404 transitions. [2022-02-10 22:22:30,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:22:30,105 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:30,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:30,126 INFO L225 Difference]: With dead ends: 11926 [2022-02-10 22:22:30,126 INFO L226 Difference]: Without dead ends: 11441 [2022-02-10 22:22:30,126 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:22:30,127 INFO L934 BasicCegarLoop]: 277 mSDtfsCounter, 144 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:30,127 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1925 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:30,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11441 states. [2022-02-10 22:22:30,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11441 to 10383. [2022-02-10 22:22:30,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 10382 states have (on average 2.8190136775187824) internal successors, (29267), 10382 states have internal predecessors, (29267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:30,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 29267 transitions. [2022-02-10 22:22:30,448 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 29267 transitions. Word has length 101 [2022-02-10 22:22:30,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:30,448 INFO L470 AbstractCegarLoop]: Abstraction has 10383 states and 29267 transitions. [2022-02-10 22:22:30,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:30,448 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 29267 transitions. [2022-02-10 22:22:30,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:30,461 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:30,461 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:30,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-10 22:22:30,461 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:30,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:30,462 INFO L85 PathProgramCache]: Analyzing trace with hash 860199986, now seen corresponding path program 16 times [2022-02-10 22:22:30,462 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:30,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857887760] [2022-02-10 22:22:30,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:30,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:30,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:30,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:30,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857887760] [2022-02-10 22:22:30,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857887760] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:30,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:30,582 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:30,582 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157641276] [2022-02-10 22:22:30,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:30,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:30,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:30,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:30,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:30,583 INFO L87 Difference]: Start difference. First operand 10383 states and 29267 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:30,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:30,820 INFO L93 Difference]: Finished difference Result 11876 states and 33271 transitions. [2022-02-10 22:22:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:22:30,820 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:30,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:30,841 INFO L225 Difference]: With dead ends: 11876 [2022-02-10 22:22:30,841 INFO L226 Difference]: Without dead ends: 11382 [2022-02-10 22:22:30,842 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:22:30,842 INFO L934 BasicCegarLoop]: 283 mSDtfsCounter, 117 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:30,842 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 2143 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:30,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11382 states. [2022-02-10 22:22:30,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11382 to 10371. [2022-02-10 22:22:30,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10371 states, 10370 states have (on average 2.819864995178399) internal successors, (29242), 10370 states have internal predecessors, (29242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:30,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10371 states to 10371 states and 29242 transitions. [2022-02-10 22:22:30,987 INFO L78 Accepts]: Start accepts. Automaton has 10371 states and 29242 transitions. Word has length 101 [2022-02-10 22:22:30,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:30,988 INFO L470 AbstractCegarLoop]: Abstraction has 10371 states and 29242 transitions. [2022-02-10 22:22:30,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:30,988 INFO L276 IsEmpty]: Start isEmpty. Operand 10371 states and 29242 transitions. [2022-02-10 22:22:31,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:31,001 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:31,002 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:31,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-10 22:22:31,002 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:31,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:31,002 INFO L85 PathProgramCache]: Analyzing trace with hash 122641612, now seen corresponding path program 17 times [2022-02-10 22:22:31,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:31,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947957607] [2022-02-10 22:22:31,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:31,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:31,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:31,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:31,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947957607] [2022-02-10 22:22:31,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947957607] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:31,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:31,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:31,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940849157] [2022-02-10 22:22:31,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:31,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:31,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:31,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:31,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:31,116 INFO L87 Difference]: Start difference. First operand 10371 states and 29242 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:31,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:31,370 INFO L93 Difference]: Finished difference Result 11870 states and 33254 transitions. [2022-02-10 22:22:31,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-10 22:22:31,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:31,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:31,394 INFO L225 Difference]: With dead ends: 11870 [2022-02-10 22:22:31,394 INFO L226 Difference]: Without dead ends: 11385 [2022-02-10 22:22:31,395 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:22:31,395 INFO L934 BasicCegarLoop]: 310 mSDtfsCounter, 206 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:31,396 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 2051 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:31,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11385 states. [2022-02-10 22:22:31,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11385 to 10387. [2022-02-10 22:22:31,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10387 states, 10386 states have (on average 2.819372231850568) internal successors, (29282), 10386 states have internal predecessors, (29282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:31,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10387 states to 10387 states and 29282 transitions. [2022-02-10 22:22:31,549 INFO L78 Accepts]: Start accepts. Automaton has 10387 states and 29282 transitions. Word has length 101 [2022-02-10 22:22:31,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:31,549 INFO L470 AbstractCegarLoop]: Abstraction has 10387 states and 29282 transitions. [2022-02-10 22:22:31,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:31,549 INFO L276 IsEmpty]: Start isEmpty. Operand 10387 states and 29282 transitions. [2022-02-10 22:22:31,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:31,562 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:31,562 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:31,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-10 22:22:31,562 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:31,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:31,563 INFO L85 PathProgramCache]: Analyzing trace with hash 804262266, now seen corresponding path program 18 times [2022-02-10 22:22:31,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:31,563 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810374635] [2022-02-10 22:22:31,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:31,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:31,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:31,670 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:31,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810374635] [2022-02-10 22:22:31,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810374635] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:31,670 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:31,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:31,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35655446] [2022-02-10 22:22:31,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:31,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:31,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:31,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:31,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:31,672 INFO L87 Difference]: Start difference. First operand 10387 states and 29282 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:31,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:31,903 INFO L93 Difference]: Finished difference Result 11832 states and 33154 transitions. [2022-02-10 22:22:31,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:22:31,903 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:31,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:31,922 INFO L225 Difference]: With dead ends: 11832 [2022-02-10 22:22:31,922 INFO L226 Difference]: Without dead ends: 11346 [2022-02-10 22:22:31,922 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:22:31,923 INFO L934 BasicCegarLoop]: 307 mSDtfsCounter, 220 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:31,923 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2283 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:31,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11346 states. [2022-02-10 22:22:32,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11346 to 10383. [2022-02-10 22:22:32,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 10382 states have (on average 2.8193989597380082) internal successors, (29271), 10382 states have internal predecessors, (29271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:32,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 29271 transitions. [2022-02-10 22:22:32,075 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 29271 transitions. Word has length 101 [2022-02-10 22:22:32,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:32,075 INFO L470 AbstractCegarLoop]: Abstraction has 10383 states and 29271 transitions. [2022-02-10 22:22:32,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:32,075 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 29271 transitions. [2022-02-10 22:22:32,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:32,089 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:32,089 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:32,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-10 22:22:32,089 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:32,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:32,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1955376076, now seen corresponding path program 19 times [2022-02-10 22:22:32,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:32,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818612118] [2022-02-10 22:22:32,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:32,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:32,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:32,196 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:32,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818612118] [2022-02-10 22:22:32,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818612118] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:32,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:32,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:32,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445914134] [2022-02-10 22:22:32,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:32,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:32,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:32,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:32,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:32,198 INFO L87 Difference]: Start difference. First operand 10383 states and 29271 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:32,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:32,479 INFO L93 Difference]: Finished difference Result 11868 states and 33249 transitions. [2022-02-10 22:22:32,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:22:32,479 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:32,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:32,496 INFO L225 Difference]: With dead ends: 11868 [2022-02-10 22:22:32,497 INFO L226 Difference]: Without dead ends: 11342 [2022-02-10 22:22:32,497 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-02-10 22:22:32,497 INFO L934 BasicCegarLoop]: 315 mSDtfsCounter, 250 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 2301 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:32,498 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 2301 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:32,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11342 states. [2022-02-10 22:22:32,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11342 to 10379. [2022-02-10 22:22:32,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 2.819425708228946) internal successors, (29260), 10378 states have internal predecessors, (29260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:32,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 29260 transitions. [2022-02-10 22:22:32,636 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 29260 transitions. Word has length 101 [2022-02-10 22:22:32,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:32,636 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 29260 transitions. [2022-02-10 22:22:32,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:32,637 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 29260 transitions. [2022-02-10 22:22:32,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:32,649 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:32,649 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:32,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-10 22:22:32,650 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:32,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:32,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1147543880, now seen corresponding path program 20 times [2022-02-10 22:22:32,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:32,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524213395] [2022-02-10 22:22:32,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:32,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:32,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:32,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:32,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524213395] [2022-02-10 22:22:32,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524213395] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:32,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:32,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:32,754 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770806971] [2022-02-10 22:22:32,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:32,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:32,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:32,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:32,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:32,755 INFO L87 Difference]: Start difference. First operand 10379 states and 29260 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:33,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:33,069 INFO L93 Difference]: Finished difference Result 13198 states and 36719 transitions. [2022-02-10 22:22:33,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-10 22:22:33,070 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:33,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:33,091 INFO L225 Difference]: With dead ends: 13198 [2022-02-10 22:22:33,091 INFO L226 Difference]: Without dead ends: 12492 [2022-02-10 22:22:33,091 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:22:33,092 INFO L934 BasicCegarLoop]: 368 mSDtfsCounter, 467 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 2775 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:33,092 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [467 Valid, 2775 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:33,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12492 states. [2022-02-10 22:22:33,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12492 to 10275. [2022-02-10 22:22:33,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10275 states, 10274 states have (on average 2.8221724742067353) internal successors, (28995), 10274 states have internal predecessors, (28995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:33,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10275 states to 10275 states and 28995 transitions. [2022-02-10 22:22:33,243 INFO L78 Accepts]: Start accepts. Automaton has 10275 states and 28995 transitions. Word has length 101 [2022-02-10 22:22:33,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:33,243 INFO L470 AbstractCegarLoop]: Abstraction has 10275 states and 28995 transitions. [2022-02-10 22:22:33,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:33,243 INFO L276 IsEmpty]: Start isEmpty. Operand 10275 states and 28995 transitions. [2022-02-10 22:22:33,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:33,257 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:33,257 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:33,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-10 22:22:33,258 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:33,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:33,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1337178174, now seen corresponding path program 1 times [2022-02-10 22:22:33,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:33,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338765427] [2022-02-10 22:22:33,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:33,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:33,280 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:33,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338765427] [2022-02-10 22:22:33,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338765427] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:33,280 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:33,280 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:22:33,280 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672757139] [2022-02-10 22:22:33,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:33,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:22:33,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:33,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:22:33,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:22:33,281 INFO L87 Difference]: Start difference. First operand 10275 states and 28995 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:33,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:33,330 INFO L93 Difference]: Finished difference Result 9393 states and 26084 transitions. [2022-02-10 22:22:33,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:22:33,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:33,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:33,349 INFO L225 Difference]: With dead ends: 9393 [2022-02-10 22:22:33,349 INFO L226 Difference]: Without dead ends: 9393 [2022-02-10 22:22:33,350 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:22:33,350 INFO L934 BasicCegarLoop]: 181 mSDtfsCounter, 130 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:33,350 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 213 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:22:33,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9393 states. [2022-02-10 22:22:33,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9393 to 9393. [2022-02-10 22:22:33,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9393 states, 9392 states have (on average 2.7772572402044293) internal successors, (26084), 9392 states have internal predecessors, (26084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:33,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9393 states to 9393 states and 26084 transitions. [2022-02-10 22:22:33,531 INFO L78 Accepts]: Start accepts. Automaton has 9393 states and 26084 transitions. Word has length 101 [2022-02-10 22:22:33,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:33,532 INFO L470 AbstractCegarLoop]: Abstraction has 9393 states and 26084 transitions. [2022-02-10 22:22:33,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:33,532 INFO L276 IsEmpty]: Start isEmpty. Operand 9393 states and 26084 transitions. [2022-02-10 22:22:33,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:33,544 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:33,545 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:33,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-10 22:22:33,545 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:33,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:33,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1661801566, now seen corresponding path program 1 times [2022-02-10 22:22:33,546 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:33,546 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760722246] [2022-02-10 22:22:33,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:33,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:33,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:33,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:33,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760722246] [2022-02-10 22:22:33,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760722246] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:33,643 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:33,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:33,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953375049] [2022-02-10 22:22:33,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:33,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:33,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:33,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:33,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:33,645 INFO L87 Difference]: Start difference. First operand 9393 states and 26084 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:33,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:33,938 INFO L93 Difference]: Finished difference Result 10497 states and 28835 transitions. [2022-02-10 22:22:33,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-10 22:22:33,938 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:33,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:33,957 INFO L225 Difference]: With dead ends: 10497 [2022-02-10 22:22:33,957 INFO L226 Difference]: Without dead ends: 9786 [2022-02-10 22:22:33,958 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:22:33,959 INFO L934 BasicCegarLoop]: 271 mSDtfsCounter, 247 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:33,960 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 1490 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:33,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9786 states. [2022-02-10 22:22:34,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9786 to 9204. [2022-02-10 22:22:34,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9204 states, 9203 states have (on average 2.783440182549169) internal successors, (25616), 9203 states have internal predecessors, (25616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:34,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9204 states to 9204 states and 25616 transitions. [2022-02-10 22:22:34,124 INFO L78 Accepts]: Start accepts. Automaton has 9204 states and 25616 transitions. Word has length 101 [2022-02-10 22:22:34,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:34,124 INFO L470 AbstractCegarLoop]: Abstraction has 9204 states and 25616 transitions. [2022-02-10 22:22:34,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:34,124 INFO L276 IsEmpty]: Start isEmpty. Operand 9204 states and 25616 transitions. [2022-02-10 22:22:34,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:34,135 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:34,136 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:34,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-10 22:22:34,136 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:34,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:34,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2035505446, now seen corresponding path program 2 times [2022-02-10 22:22:34,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:34,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994844515] [2022-02-10 22:22:34,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:34,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:34,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:34,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:34,241 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994844515] [2022-02-10 22:22:34,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994844515] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:34,241 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:34,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:34,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940474882] [2022-02-10 22:22:34,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:34,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:34,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:34,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:34,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:34,242 INFO L87 Difference]: Start difference. First operand 9204 states and 25616 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:34,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:34,518 INFO L93 Difference]: Finished difference Result 10091 states and 27888 transitions. [2022-02-10 22:22:34,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:22:34,519 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:34,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:34,534 INFO L225 Difference]: With dead ends: 10091 [2022-02-10 22:22:34,534 INFO L226 Difference]: Without dead ends: 9569 [2022-02-10 22:22:34,534 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-02-10 22:22:34,534 INFO L934 BasicCegarLoop]: 263 mSDtfsCounter, 145 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 2147 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:34,535 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 2147 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:34,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9569 states. [2022-02-10 22:22:34,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9569 to 9208. [2022-02-10 22:22:34,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 2.7829912023460412) internal successors, (25623), 9207 states have internal predecessors, (25623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:34,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 25623 transitions. [2022-02-10 22:22:34,658 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 25623 transitions. Word has length 101 [2022-02-10 22:22:34,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:34,659 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 25623 transitions. [2022-02-10 22:22:34,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:34,659 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 25623 transitions. [2022-02-10 22:22:34,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:34,670 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:34,670 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:34,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-10 22:22:34,670 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:34,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:34,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1953590340, now seen corresponding path program 3 times [2022-02-10 22:22:34,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:34,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385953978] [2022-02-10 22:22:34,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:34,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:34,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:34,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:34,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385953978] [2022-02-10 22:22:34,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385953978] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:34,767 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:34,767 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:34,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292151464] [2022-02-10 22:22:34,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:34,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:34,768 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:34,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:34,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:34,768 INFO L87 Difference]: Start difference. First operand 9208 states and 25623 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:34,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:34,989 INFO L93 Difference]: Finished difference Result 9966 states and 27559 transitions. [2022-02-10 22:22:34,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:22:34,990 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:34,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:35,005 INFO L225 Difference]: With dead ends: 9966 [2022-02-10 22:22:35,005 INFO L226 Difference]: Without dead ends: 9487 [2022-02-10 22:22:35,005 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:22:35,006 INFO L934 BasicCegarLoop]: 256 mSDtfsCounter, 103 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:35,006 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 1673 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:35,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9487 states. [2022-02-10 22:22:35,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9487 to 9212. [2022-02-10 22:22:35,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9212 states, 9211 states have (on average 2.782542612094235) internal successors, (25630), 9211 states have internal predecessors, (25630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:35,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9212 states to 9212 states and 25630 transitions. [2022-02-10 22:22:35,135 INFO L78 Accepts]: Start accepts. Automaton has 9212 states and 25630 transitions. Word has length 101 [2022-02-10 22:22:35,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:35,135 INFO L470 AbstractCegarLoop]: Abstraction has 9212 states and 25630 transitions. [2022-02-10 22:22:35,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:35,136 INFO L276 IsEmpty]: Start isEmpty. Operand 9212 states and 25630 transitions. [2022-02-10 22:22:35,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:35,148 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:35,148 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:35,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-10 22:22:35,148 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:35,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:35,148 INFO L85 PathProgramCache]: Analyzing trace with hash -713853838, now seen corresponding path program 4 times [2022-02-10 22:22:35,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:35,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182904796] [2022-02-10 22:22:35,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:35,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:35,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:35,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:35,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182904796] [2022-02-10 22:22:35,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182904796] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:35,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:35,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:35,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595149431] [2022-02-10 22:22:35,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:35,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:35,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:35,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:35,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:35,250 INFO L87 Difference]: Start difference. First operand 9212 states and 25630 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:35,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:35,526 INFO L93 Difference]: Finished difference Result 9908 states and 27404 transitions. [2022-02-10 22:22:35,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-10 22:22:35,526 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:35,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:35,541 INFO L225 Difference]: With dead ends: 9908 [2022-02-10 22:22:35,541 INFO L226 Difference]: Without dead ends: 9406 [2022-02-10 22:22:35,541 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:22:35,542 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 91 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:35,542 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 1402 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:35,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9406 states. [2022-02-10 22:22:35,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9406 to 9186. [2022-02-10 22:22:35,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9186 states, 9185 states have (on average 2.7839956450734893) internal successors, (25571), 9185 states have internal predecessors, (25571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:35,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9186 states to 9186 states and 25571 transitions. [2022-02-10 22:22:35,670 INFO L78 Accepts]: Start accepts. Automaton has 9186 states and 25571 transitions. Word has length 101 [2022-02-10 22:22:35,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:35,670 INFO L470 AbstractCegarLoop]: Abstraction has 9186 states and 25571 transitions. [2022-02-10 22:22:35,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:35,670 INFO L276 IsEmpty]: Start isEmpty. Operand 9186 states and 25571 transitions. [2022-02-10 22:22:35,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:35,684 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:35,684 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:35,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-10 22:22:35,685 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:35,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:35,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1508449932, now seen corresponding path program 5 times [2022-02-10 22:22:35,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:35,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573163119] [2022-02-10 22:22:35,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:35,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:35,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:35,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:35,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573163119] [2022-02-10 22:22:35,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573163119] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:35,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:35,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:35,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817378524] [2022-02-10 22:22:35,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:35,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:35,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:35,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:35,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:35,782 INFO L87 Difference]: Start difference. First operand 9186 states and 25571 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:35,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:35,998 INFO L93 Difference]: Finished difference Result 10016 states and 27705 transitions. [2022-02-10 22:22:35,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:22:35,999 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:35,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:36,013 INFO L225 Difference]: With dead ends: 10016 [2022-02-10 22:22:36,013 INFO L226 Difference]: Without dead ends: 9537 [2022-02-10 22:22:36,013 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-02-10 22:22:36,014 INFO L934 BasicCegarLoop]: 240 mSDtfsCounter, 99 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:36,014 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 1616 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:36,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9537 states. [2022-02-10 22:22:36,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9537 to 9198. [2022-02-10 22:22:36,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9198 states, 9197 states have (on average 2.7835163640317493) internal successors, (25600), 9197 states have internal predecessors, (25600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:36,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9198 states to 9198 states and 25600 transitions. [2022-02-10 22:22:36,138 INFO L78 Accepts]: Start accepts. Automaton has 9198 states and 25600 transitions. Word has length 101 [2022-02-10 22:22:36,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:36,138 INFO L470 AbstractCegarLoop]: Abstraction has 9198 states and 25600 transitions. [2022-02-10 22:22:36,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:36,138 INFO L276 IsEmpty]: Start isEmpty. Operand 9198 states and 25600 transitions. [2022-02-10 22:22:36,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:36,149 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:36,149 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:36,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-10 22:22:36,150 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:36,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:36,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1158994246, now seen corresponding path program 6 times [2022-02-10 22:22:36,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:36,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966217704] [2022-02-10 22:22:36,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:36,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:36,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:36,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:36,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966217704] [2022-02-10 22:22:36,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966217704] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:36,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:36,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:36,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578760982] [2022-02-10 22:22:36,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:36,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:36,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:36,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:36,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:36,255 INFO L87 Difference]: Start difference. First operand 9198 states and 25600 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:36,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:36,482 INFO L93 Difference]: Finished difference Result 9974 states and 27594 transitions. [2022-02-10 22:22:36,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:22:36,483 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:36,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:36,496 INFO L225 Difference]: With dead ends: 9974 [2022-02-10 22:22:36,497 INFO L226 Difference]: Without dead ends: 9494 [2022-02-10 22:22:36,497 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:22:36,497 INFO L934 BasicCegarLoop]: 241 mSDtfsCounter, 87 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:36,497 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1565 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:36,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9494 states. [2022-02-10 22:22:36,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9494 to 9194. [2022-02-10 22:22:36,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9194 states, 9193 states have (on average 2.783530947460024) internal successors, (25589), 9193 states have internal predecessors, (25589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:36,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9194 states to 9194 states and 25589 transitions. [2022-02-10 22:22:36,618 INFO L78 Accepts]: Start accepts. Automaton has 9194 states and 25589 transitions. Word has length 101 [2022-02-10 22:22:36,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:36,618 INFO L470 AbstractCegarLoop]: Abstraction has 9194 states and 25589 transitions. [2022-02-10 22:22:36,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:36,618 INFO L276 IsEmpty]: Start isEmpty. Operand 9194 states and 25589 transitions. [2022-02-10 22:22:36,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:36,629 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:36,630 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:36,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-10 22:22:36,630 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:36,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:36,630 INFO L85 PathProgramCache]: Analyzing trace with hash 2014915710, now seen corresponding path program 7 times [2022-02-10 22:22:36,630 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:36,631 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002128655] [2022-02-10 22:22:36,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:36,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:36,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:36,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:36,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002128655] [2022-02-10 22:22:36,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002128655] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:36,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:36,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:36,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733624239] [2022-02-10 22:22:36,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:36,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:36,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:36,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:36,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:36,753 INFO L87 Difference]: Start difference. First operand 9194 states and 25589 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:36,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:36,957 INFO L93 Difference]: Finished difference Result 10122 states and 27981 transitions. [2022-02-10 22:22:36,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:36,957 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:36,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:36,971 INFO L225 Difference]: With dead ends: 10122 [2022-02-10 22:22:36,971 INFO L226 Difference]: Without dead ends: 9602 [2022-02-10 22:22:36,971 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:36,972 INFO L934 BasicCegarLoop]: 241 mSDtfsCounter, 142 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:36,972 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1444 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:36,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9602 states. [2022-02-10 22:22:37,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9602 to 9190. [2022-02-10 22:22:37,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9190 states, 9189 states have (on average 2.783545543584721) internal successors, (25578), 9189 states have internal predecessors, (25578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:37,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9190 states to 9190 states and 25578 transitions. [2022-02-10 22:22:37,088 INFO L78 Accepts]: Start accepts. Automaton has 9190 states and 25578 transitions. Word has length 101 [2022-02-10 22:22:37,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:37,089 INFO L470 AbstractCegarLoop]: Abstraction has 9190 states and 25578 transitions. [2022-02-10 22:22:37,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:37,089 INFO L276 IsEmpty]: Start isEmpty. Operand 9190 states and 25578 transitions. [2022-02-10 22:22:37,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:37,101 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:37,101 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:37,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-10 22:22:37,101 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:37,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:37,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1352894776, now seen corresponding path program 8 times [2022-02-10 22:22:37,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:37,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248203440] [2022-02-10 22:22:37,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:37,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:37,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:37,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:37,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248203440] [2022-02-10 22:22:37,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248203440] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:37,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:37,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:37,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911896824] [2022-02-10 22:22:37,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:37,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:37,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:37,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:37,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:37,198 INFO L87 Difference]: Start difference. First operand 9190 states and 25578 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:37,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:37,447 INFO L93 Difference]: Finished difference Result 10077 states and 27850 transitions. [2022-02-10 22:22:37,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 22:22:37,447 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:37,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:37,461 INFO L225 Difference]: With dead ends: 10077 [2022-02-10 22:22:37,461 INFO L226 Difference]: Without dead ends: 9555 [2022-02-10 22:22:37,462 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:22:37,462 INFO L934 BasicCegarLoop]: 249 mSDtfsCounter, 130 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:37,462 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 2039 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:37,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9555 states. [2022-02-10 22:22:37,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9555 to 9194. [2022-02-10 22:22:37,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9194 states, 9193 states have (on average 2.7830958337865765) internal successors, (25585), 9193 states have internal predecessors, (25585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:37,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9194 states to 9194 states and 25585 transitions. [2022-02-10 22:22:37,582 INFO L78 Accepts]: Start accepts. Automaton has 9194 states and 25585 transitions. Word has length 101 [2022-02-10 22:22:37,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:37,582 INFO L470 AbstractCegarLoop]: Abstraction has 9194 states and 25585 transitions. [2022-02-10 22:22:37,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:37,582 INFO L276 IsEmpty]: Start isEmpty. Operand 9194 states and 25585 transitions. [2022-02-10 22:22:37,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:37,593 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:37,593 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:37,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-10 22:22:37,594 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:37,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:37,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1047023266, now seen corresponding path program 9 times [2022-02-10 22:22:37,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:37,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937931176] [2022-02-10 22:22:37,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:37,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:37,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:37,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:37,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937931176] [2022-02-10 22:22:37,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937931176] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:37,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:37,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:37,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272272600] [2022-02-10 22:22:37,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:37,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:37,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:37,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:37,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:37,703 INFO L87 Difference]: Start difference. First operand 9194 states and 25585 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:37,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:37,950 INFO L93 Difference]: Finished difference Result 9960 states and 27543 transitions. [2022-02-10 22:22:37,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:22:37,950 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:37,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:37,969 INFO L225 Difference]: With dead ends: 9960 [2022-02-10 22:22:37,969 INFO L226 Difference]: Without dead ends: 9481 [2022-02-10 22:22:37,969 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:22:37,970 INFO L934 BasicCegarLoop]: 243 mSDtfsCounter, 99 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:37,970 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 1995 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:37,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9481 states. [2022-02-10 22:22:38,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9481 to 9198. [2022-02-10 22:22:38,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9198 states, 9197 states have (on average 2.7826465151679898) internal successors, (25592), 9197 states have internal predecessors, (25592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:38,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9198 states to 9198 states and 25592 transitions. [2022-02-10 22:22:38,138 INFO L78 Accepts]: Start accepts. Automaton has 9198 states and 25592 transitions. Word has length 101 [2022-02-10 22:22:38,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:38,138 INFO L470 AbstractCegarLoop]: Abstraction has 9198 states and 25592 transitions. [2022-02-10 22:22:38,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:38,138 INFO L276 IsEmpty]: Start isEmpty. Operand 9198 states and 25592 transitions. [2022-02-10 22:22:38,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:38,154 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:38,154 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:38,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-10 22:22:38,154 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:38,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:38,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1620420912, now seen corresponding path program 10 times [2022-02-10 22:22:38,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:38,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417114465] [2022-02-10 22:22:38,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:38,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:38,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:38,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:38,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417114465] [2022-02-10 22:22:38,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417114465] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:38,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:38,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:38,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281410031] [2022-02-10 22:22:38,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:38,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:38,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:38,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:38,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:38,277 INFO L87 Difference]: Start difference. First operand 9198 states and 25592 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:38,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:38,482 INFO L93 Difference]: Finished difference Result 9894 states and 27366 transitions. [2022-02-10 22:22:38,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:22:38,483 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:38,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:38,496 INFO L225 Difference]: With dead ends: 9894 [2022-02-10 22:22:38,496 INFO L226 Difference]: Without dead ends: 9388 [2022-02-10 22:22:38,496 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:22:38,497 INFO L934 BasicCegarLoop]: 239 mSDtfsCounter, 85 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:38,497 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 1787 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:38,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9388 states. [2022-02-10 22:22:38,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9388 to 9168. [2022-02-10 22:22:38,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9168 states, 9167 states have (on average 2.7845532889713103) internal successors, (25526), 9167 states have internal predecessors, (25526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:38,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9168 states to 9168 states and 25526 transitions. [2022-02-10 22:22:38,608 INFO L78 Accepts]: Start accepts. Automaton has 9168 states and 25526 transitions. Word has length 101 [2022-02-10 22:22:38,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:38,608 INFO L470 AbstractCegarLoop]: Abstraction has 9168 states and 25526 transitions. [2022-02-10 22:22:38,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:38,609 INFO L276 IsEmpty]: Start isEmpty. Operand 9168 states and 25526 transitions. [2022-02-10 22:22:38,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:38,620 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:38,620 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:38,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-10 22:22:38,621 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:38,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:38,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2141146676, now seen corresponding path program 11 times [2022-02-10 22:22:38,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:38,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629162418] [2022-02-10 22:22:38,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:38,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:38,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:38,712 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:38,712 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629162418] [2022-02-10 22:22:38,712 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629162418] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:38,712 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:38,712 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:38,712 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480119728] [2022-02-10 22:22:38,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:38,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:38,713 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:38,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:38,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:38,713 INFO L87 Difference]: Start difference. First operand 9168 states and 25526 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:38,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:38,896 INFO L93 Difference]: Finished difference Result 9859 states and 27279 transitions. [2022-02-10 22:22:38,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-10 22:22:38,896 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:38,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:38,909 INFO L225 Difference]: With dead ends: 9859 [2022-02-10 22:22:38,910 INFO L226 Difference]: Without dead ends: 9380 [2022-02-10 22:22:38,910 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:22:38,910 INFO L934 BasicCegarLoop]: 234 mSDtfsCounter, 110 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:38,910 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 1553 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:38,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9380 states. [2022-02-10 22:22:39,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9380 to 9176. [2022-02-10 22:22:39,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9176 states, 9175 states have (on average 2.7840871934604903) internal successors, (25544), 9175 states have internal predecessors, (25544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:39,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9176 states to 9176 states and 25544 transitions. [2022-02-10 22:22:39,029 INFO L78 Accepts]: Start accepts. Automaton has 9176 states and 25544 transitions. Word has length 101 [2022-02-10 22:22:39,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:39,029 INFO L470 AbstractCegarLoop]: Abstraction has 9176 states and 25544 transitions. [2022-02-10 22:22:39,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:39,029 INFO L276 IsEmpty]: Start isEmpty. Operand 9176 states and 25544 transitions. [2022-02-10 22:22:39,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:39,040 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:39,040 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:39,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-10 22:22:39,041 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:39,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:39,041 INFO L85 PathProgramCache]: Analyzing trace with hash -513623558, now seen corresponding path program 12 times [2022-02-10 22:22:39,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:39,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559709927] [2022-02-10 22:22:39,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:39,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:39,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:39,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:39,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559709927] [2022-02-10 22:22:39,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559709927] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:39,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:39,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:39,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210329955] [2022-02-10 22:22:39,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:39,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:39,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:39,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:39,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:39,139 INFO L87 Difference]: Start difference. First operand 9176 states and 25544 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:39,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:39,359 INFO L93 Difference]: Finished difference Result 9825 states and 27190 transitions. [2022-02-10 22:22:39,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:22:39,360 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:39,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:39,379 INFO L225 Difference]: With dead ends: 9825 [2022-02-10 22:22:39,379 INFO L226 Difference]: Without dead ends: 9345 [2022-02-10 22:22:39,379 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:22:39,380 INFO L934 BasicCegarLoop]: 243 mSDtfsCounter, 104 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:39,380 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 2008 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:39,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9345 states. [2022-02-10 22:22:39,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9345 to 9172. [2022-02-10 22:22:39,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9172 states, 9171 states have (on average 2.784102060843965) internal successors, (25533), 9171 states have internal predecessors, (25533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:39,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9172 states to 9172 states and 25533 transitions. [2022-02-10 22:22:39,500 INFO L78 Accepts]: Start accepts. Automaton has 9172 states and 25533 transitions. Word has length 101 [2022-02-10 22:22:39,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:39,500 INFO L470 AbstractCegarLoop]: Abstraction has 9172 states and 25533 transitions. [2022-02-10 22:22:39,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:39,501 INFO L276 IsEmpty]: Start isEmpty. Operand 9172 states and 25533 transitions. [2022-02-10 22:22:39,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:39,511 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:39,512 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:39,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-10 22:22:39,512 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:39,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:39,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1634680898, now seen corresponding path program 13 times [2022-02-10 22:22:39,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:39,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148301874] [2022-02-10 22:22:39,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:39,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:39,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:39,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:39,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148301874] [2022-02-10 22:22:39,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148301874] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:39,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:39,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:39,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068458515] [2022-02-10 22:22:39,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:39,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:39,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:39,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:39,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:39,612 INFO L87 Difference]: Start difference. First operand 9172 states and 25533 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:39,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:39,889 INFO L93 Difference]: Finished difference Result 9861 states and 27285 transitions. [2022-02-10 22:22:39,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:22:39,890 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:39,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:39,904 INFO L225 Difference]: With dead ends: 9861 [2022-02-10 22:22:39,904 INFO L226 Difference]: Without dead ends: 9341 [2022-02-10 22:22:39,904 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-02-10 22:22:39,904 INFO L934 BasicCegarLoop]: 252 mSDtfsCounter, 146 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:39,905 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 1643 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:39,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9341 states. [2022-02-10 22:22:40,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9341 to 9168. [2022-02-10 22:22:40,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9168 states, 9167 states have (on average 2.784116941202138) internal successors, (25522), 9167 states have internal predecessors, (25522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:40,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9168 states to 9168 states and 25522 transitions. [2022-02-10 22:22:40,031 INFO L78 Accepts]: Start accepts. Automaton has 9168 states and 25522 transitions. Word has length 101 [2022-02-10 22:22:40,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:40,031 INFO L470 AbstractCegarLoop]: Abstraction has 9168 states and 25522 transitions. [2022-02-10 22:22:40,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:40,032 INFO L276 IsEmpty]: Start isEmpty. Operand 9168 states and 25522 transitions. [2022-02-10 22:22:40,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:40,044 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:40,044 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:40,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-10 22:22:40,044 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:40,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:40,044 INFO L85 PathProgramCache]: Analyzing trace with hash -760242484, now seen corresponding path program 14 times [2022-02-10 22:22:40,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:40,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777696230] [2022-02-10 22:22:40,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:40,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:40,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:40,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:40,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777696230] [2022-02-10 22:22:40,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777696230] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:40,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:40,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:40,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803406174] [2022-02-10 22:22:40,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:40,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:40,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:40,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:40,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:40,138 INFO L87 Difference]: Start difference. First operand 9168 states and 25522 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:40,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:40,485 INFO L93 Difference]: Finished difference Result 10266 states and 28261 transitions. [2022-02-10 22:22:40,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-10 22:22:40,486 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:40,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:40,498 INFO L225 Difference]: With dead ends: 10266 [2022-02-10 22:22:40,498 INFO L226 Difference]: Without dead ends: 9618 [2022-02-10 22:22:40,498 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-02-10 22:22:40,498 INFO L934 BasicCegarLoop]: 252 mSDtfsCounter, 260 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:40,498 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 1623 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:40,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9618 states. [2022-02-10 22:22:40,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9618 to 9036. [2022-02-10 22:22:40,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9036 states, 9035 states have (on average 2.785058107360266) internal successors, (25163), 9035 states have internal predecessors, (25163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:40,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9036 states to 9036 states and 25163 transitions. [2022-02-10 22:22:40,603 INFO L78 Accepts]: Start accepts. Automaton has 9036 states and 25163 transitions. Word has length 101 [2022-02-10 22:22:40,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:40,603 INFO L470 AbstractCegarLoop]: Abstraction has 9036 states and 25163 transitions. [2022-02-10 22:22:40,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:40,603 INFO L276 IsEmpty]: Start isEmpty. Operand 9036 states and 25163 transitions. [2022-02-10 22:22:40,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:40,616 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:40,616 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:40,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-10 22:22:40,616 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:40,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:40,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1002250734, now seen corresponding path program 15 times [2022-02-10 22:22:40,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:40,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15380741] [2022-02-10 22:22:40,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:40,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:40,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:40,711 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:40,712 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15380741] [2022-02-10 22:22:40,712 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15380741] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:40,712 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:40,712 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:40,712 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450891258] [2022-02-10 22:22:40,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:40,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:40,712 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:40,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:40,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:40,713 INFO L87 Difference]: Start difference. First operand 9036 states and 25163 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:40,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:40,921 INFO L93 Difference]: Finished difference Result 9719 states and 26894 transitions. [2022-02-10 22:22:40,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:22:40,921 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:40,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:40,936 INFO L225 Difference]: With dead ends: 9719 [2022-02-10 22:22:40,936 INFO L226 Difference]: Without dead ends: 9240 [2022-02-10 22:22:40,937 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:22:40,937 INFO L934 BasicCegarLoop]: 229 mSDtfsCounter, 91 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:40,937 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 1898 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:40,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9240 states. [2022-02-10 22:22:41,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9240 to 9044. [2022-02-10 22:22:41,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9044 states, 9043 states have (on average 2.784584761694128) internal successors, (25181), 9043 states have internal predecessors, (25181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:41,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9044 states to 9044 states and 25181 transitions. [2022-02-10 22:22:41,052 INFO L78 Accepts]: Start accepts. Automaton has 9044 states and 25181 transitions. Word has length 101 [2022-02-10 22:22:41,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:41,053 INFO L470 AbstractCegarLoop]: Abstraction has 9044 states and 25181 transitions. [2022-02-10 22:22:41,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:41,053 INFO L276 IsEmpty]: Start isEmpty. Operand 9044 states and 25181 transitions. [2022-02-10 22:22:41,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:41,064 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:41,064 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:41,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-10 22:22:41,064 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:41,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:41,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1665193444, now seen corresponding path program 16 times [2022-02-10 22:22:41,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:41,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661886209] [2022-02-10 22:22:41,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:41,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:41,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:41,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:41,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661886209] [2022-02-10 22:22:41,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661886209] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:41,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:41,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:41,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049430251] [2022-02-10 22:22:41,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:41,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:41,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:41,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:41,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:41,180 INFO L87 Difference]: Start difference. First operand 9044 states and 25181 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:41,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:41,420 INFO L93 Difference]: Finished difference Result 9677 states and 26783 transitions. [2022-02-10 22:22:41,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:22:41,420 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:41,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:41,437 INFO L225 Difference]: With dead ends: 9677 [2022-02-10 22:22:41,437 INFO L226 Difference]: Without dead ends: 9197 [2022-02-10 22:22:41,437 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:22:41,438 INFO L934 BasicCegarLoop]: 230 mSDtfsCounter, 87 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:41,438 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1522 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:41,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9197 states. [2022-02-10 22:22:41,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9197 to 9040. [2022-02-10 22:22:41,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9040 states, 9039 states have (on average 2.7846000663790242) internal successors, (25170), 9039 states have internal predecessors, (25170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:41,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9040 states to 9040 states and 25170 transitions. [2022-02-10 22:22:41,569 INFO L78 Accepts]: Start accepts. Automaton has 9040 states and 25170 transitions. Word has length 101 [2022-02-10 22:22:41,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:41,569 INFO L470 AbstractCegarLoop]: Abstraction has 9040 states and 25170 transitions. [2022-02-10 22:22:41,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:41,570 INFO L276 IsEmpty]: Start isEmpty. Operand 9040 states and 25170 transitions. [2022-02-10 22:22:41,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:41,581 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:41,581 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:41,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-10 22:22:41,581 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:41,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:41,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1508716512, now seen corresponding path program 17 times [2022-02-10 22:22:41,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:41,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275541507] [2022-02-10 22:22:41,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:41,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:41,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:41,675 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:41,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275541507] [2022-02-10 22:22:41,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275541507] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:41,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:41,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:41,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065660768] [2022-02-10 22:22:41,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:41,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:41,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:41,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:41,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:41,676 INFO L87 Difference]: Start difference. First operand 9040 states and 25170 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:41,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:41,918 INFO L93 Difference]: Finished difference Result 9825 states and 27170 transitions. [2022-02-10 22:22:41,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 22:22:41,919 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:41,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:41,932 INFO L225 Difference]: With dead ends: 9825 [2022-02-10 22:22:41,932 INFO L226 Difference]: Without dead ends: 9305 [2022-02-10 22:22:41,932 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:41,932 INFO L934 BasicCegarLoop]: 230 mSDtfsCounter, 141 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:41,933 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 1332 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:41,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9305 states. [2022-02-10 22:22:42,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9305 to 9036. [2022-02-10 22:22:42,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9036 states, 9035 states have (on average 2.7846153846153845) internal successors, (25159), 9035 states have internal predecessors, (25159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:42,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9036 states to 9036 states and 25159 transitions. [2022-02-10 22:22:42,045 INFO L78 Accepts]: Start accepts. Automaton has 9036 states and 25159 transitions. Word has length 101 [2022-02-10 22:22:42,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:42,045 INFO L470 AbstractCegarLoop]: Abstraction has 9036 states and 25159 transitions. [2022-02-10 22:22:42,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:42,046 INFO L276 IsEmpty]: Start isEmpty. Operand 9036 states and 25159 transitions. [2022-02-10 22:22:42,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:42,057 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:42,057 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:42,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-10 22:22:42,057 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:42,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:42,057 INFO L85 PathProgramCache]: Analyzing trace with hash 846695578, now seen corresponding path program 18 times [2022-02-10 22:22:42,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:42,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735844997] [2022-02-10 22:22:42,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:42,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:42,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:42,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:42,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735844997] [2022-02-10 22:22:42,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735844997] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:42,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:42,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:42,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206785575] [2022-02-10 22:22:42,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:42,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:42,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:42,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:42,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:42,151 INFO L87 Difference]: Start difference. First operand 9036 states and 25159 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:42,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:42,371 INFO L93 Difference]: Finished difference Result 9656 states and 26723 transitions. [2022-02-10 22:22:42,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:42,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:42,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:42,390 INFO L225 Difference]: With dead ends: 9656 [2022-02-10 22:22:42,390 INFO L226 Difference]: Without dead ends: 9134 [2022-02-10 22:22:42,390 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:42,391 INFO L934 BasicCegarLoop]: 228 mSDtfsCounter, 126 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:42,391 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 1697 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:42,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9134 states. [2022-02-10 22:22:42,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9134 to 8993. [2022-02-10 22:22:42,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8993 states, 8992 states have (on average 2.7850311387900355) internal successors, (25043), 8992 states have internal predecessors, (25043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:42,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8993 states to 8993 states and 25043 transitions. [2022-02-10 22:22:42,566 INFO L78 Accepts]: Start accepts. Automaton has 8993 states and 25043 transitions. Word has length 101 [2022-02-10 22:22:42,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:42,566 INFO L470 AbstractCegarLoop]: Abstraction has 8993 states and 25043 transitions. [2022-02-10 22:22:42,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:42,567 INFO L276 IsEmpty]: Start isEmpty. Operand 8993 states and 25043 transitions. [2022-02-10 22:22:42,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:42,579 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:42,579 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:42,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-10 22:22:42,579 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:42,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:42,580 INFO L85 PathProgramCache]: Analyzing trace with hash 540824068, now seen corresponding path program 19 times [2022-02-10 22:22:42,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:42,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305501544] [2022-02-10 22:22:42,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:42,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:42,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:42,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:42,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305501544] [2022-02-10 22:22:42,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305501544] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:42,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:42,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:42,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097749749] [2022-02-10 22:22:42,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:42,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:42,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:42,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:42,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:42,680 INFO L87 Difference]: Start difference. First operand 8993 states and 25043 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:42,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:42,896 INFO L93 Difference]: Finished difference Result 9570 states and 26495 transitions. [2022-02-10 22:22:42,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:22:42,897 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:42,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:42,914 INFO L225 Difference]: With dead ends: 9570 [2022-02-10 22:22:42,915 INFO L226 Difference]: Without dead ends: 9091 [2022-02-10 22:22:42,915 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:22:42,915 INFO L934 BasicCegarLoop]: 216 mSDtfsCounter, 117 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:42,915 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 1450 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:42,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9091 states. [2022-02-10 22:22:43,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9091 to 8997. [2022-02-10 22:22:43,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8997 states, 8996 states have (on average 2.7845709204090707) internal successors, (25050), 8996 states have internal predecessors, (25050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:43,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8997 states to 8997 states and 25050 transitions. [2022-02-10 22:22:43,060 INFO L78 Accepts]: Start accepts. Automaton has 8997 states and 25050 transitions. Word has length 101 [2022-02-10 22:22:43,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:43,061 INFO L470 AbstractCegarLoop]: Abstraction has 8997 states and 25050 transitions. [2022-02-10 22:22:43,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:43,061 INFO L276 IsEmpty]: Start isEmpty. Operand 8997 states and 25050 transitions. [2022-02-10 22:22:43,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-10 22:22:43,072 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:43,072 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:43,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-10 22:22:43,072 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:43,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:43,072 INFO L85 PathProgramCache]: Analyzing trace with hash -2126620110, now seen corresponding path program 20 times [2022-02-10 22:22:43,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:43,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108582683] [2022-02-10 22:22:43,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:43,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:43,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:43,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:43,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108582683] [2022-02-10 22:22:43,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108582683] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:43,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:43,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-10 22:22:43,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134804450] [2022-02-10 22:22:43,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:43,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 22:22:43,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:43,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 22:22:43,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:22:43,159 INFO L87 Difference]: Start difference. First operand 8997 states and 25050 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:43,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:43,328 INFO L93 Difference]: Finished difference Result 9473 states and 26239 transitions. [2022-02-10 22:22:43,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:22:43,328 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-02-10 22:22:43,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:43,343 INFO L225 Difference]: With dead ends: 9473 [2022-02-10 22:22:43,343 INFO L226 Difference]: Without dead ends: 8939 [2022-02-10 22:22:43,343 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-02-10 22:22:43,344 INFO L934 BasicCegarLoop]: 207 mSDtfsCounter, 83 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:43,344 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 1756 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:43,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8939 states. [2022-02-10 22:22:43,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8939 to 8939. [2022-02-10 22:22:43,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8939 states, 8938 states have (on average 2.7879838890132023) internal successors, (24919), 8938 states have internal predecessors, (24919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:43,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8939 states to 8939 states and 24919 transitions. [2022-02-10 22:22:43,465 INFO L78 Accepts]: Start accepts. Automaton has 8939 states and 24919 transitions. Word has length 101 [2022-02-10 22:22:43,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:43,465 INFO L470 AbstractCegarLoop]: Abstraction has 8939 states and 24919 transitions. [2022-02-10 22:22:43,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:43,465 INFO L276 IsEmpty]: Start isEmpty. Operand 8939 states and 24919 transitions. [2022-02-10 22:22:43,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:43,477 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:43,478 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:43,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-10 22:22:43,478 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:43,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:43,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1425192312, now seen corresponding path program 1 times [2022-02-10 22:22:43,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:43,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840348854] [2022-02-10 22:22:43,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:43,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:43,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:43,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:43,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840348854] [2022-02-10 22:22:43,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840348854] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:43,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:43,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:43,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719938741] [2022-02-10 22:22:43,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:43,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:43,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:43,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:43,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:43,592 INFO L87 Difference]: Start difference. First operand 8939 states and 24919 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:44,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:44,236 INFO L93 Difference]: Finished difference Result 14618 states and 40107 transitions. [2022-02-10 22:22:44,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:22:44,236 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:44,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:44,259 INFO L225 Difference]: With dead ends: 14618 [2022-02-10 22:22:44,259 INFO L226 Difference]: Without dead ends: 13655 [2022-02-10 22:22:44,260 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=492, Invalid=1400, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:22:44,260 INFO L934 BasicCegarLoop]: 605 mSDtfsCounter, 793 mSDsluCounter, 5107 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 5629 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:44,260 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [793 Valid, 5629 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:22:44,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13655 states. [2022-02-10 22:22:44,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13655 to 9479. [2022-02-10 22:22:44,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9479 states, 9478 states have (on average 2.785503270732222) internal successors, (26401), 9478 states have internal predecessors, (26401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:44,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9479 states to 9479 states and 26401 transitions. [2022-02-10 22:22:44,414 INFO L78 Accepts]: Start accepts. Automaton has 9479 states and 26401 transitions. Word has length 109 [2022-02-10 22:22:44,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:44,414 INFO L470 AbstractCegarLoop]: Abstraction has 9479 states and 26401 transitions. [2022-02-10 22:22:44,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:44,414 INFO L276 IsEmpty]: Start isEmpty. Operand 9479 states and 26401 transitions. [2022-02-10 22:22:44,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:44,425 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:44,425 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:44,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-10 22:22:44,426 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:44,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:44,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1923529448, now seen corresponding path program 1 times [2022-02-10 22:22:44,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:44,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796242173] [2022-02-10 22:22:44,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:44,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:44,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:44,465 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:44,465 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796242173] [2022-02-10 22:22:44,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796242173] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:44,465 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:44,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:22:44,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137783580] [2022-02-10 22:22:44,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:44,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:22:44,465 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:44,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:22:44,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:22:44,466 INFO L87 Difference]: Start difference. First operand 9479 states and 26401 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:44,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:44,530 INFO L93 Difference]: Finished difference Result 13726 states and 37493 transitions. [2022-02-10 22:22:44,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:22:44,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:44,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:44,559 INFO L225 Difference]: With dead ends: 13726 [2022-02-10 22:22:44,560 INFO L226 Difference]: Without dead ends: 13663 [2022-02-10 22:22:44,560 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:22:44,560 INFO L934 BasicCegarLoop]: 230 mSDtfsCounter, 104 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:44,560 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 380 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:22:44,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13663 states. [2022-02-10 22:22:44,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13663 to 9937. [2022-02-10 22:22:44,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9937 states, 9936 states have (on average 2.763184380032206) internal successors, (27455), 9936 states have internal predecessors, (27455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:44,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9937 states to 9937 states and 27455 transitions. [2022-02-10 22:22:44,727 INFO L78 Accepts]: Start accepts. Automaton has 9937 states and 27455 transitions. Word has length 109 [2022-02-10 22:22:44,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:44,727 INFO L470 AbstractCegarLoop]: Abstraction has 9937 states and 27455 transitions. [2022-02-10 22:22:44,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:44,727 INFO L276 IsEmpty]: Start isEmpty. Operand 9937 states and 27455 transitions. [2022-02-10 22:22:44,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:44,739 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:44,739 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:44,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-10 22:22:44,739 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:44,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:44,740 INFO L85 PathProgramCache]: Analyzing trace with hash 356410200, now seen corresponding path program 1 times [2022-02-10 22:22:44,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:44,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694150468] [2022-02-10 22:22:44,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:44,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:44,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:44,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:44,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694150468] [2022-02-10 22:22:44,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694150468] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:44,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:44,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:22:44,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428222119] [2022-02-10 22:22:44,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:44,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:22:44,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:44,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:22:44,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:22:44,760 INFO L87 Difference]: Start difference. First operand 9937 states and 27455 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:44,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:44,815 INFO L93 Difference]: Finished difference Result 14235 states and 38677 transitions. [2022-02-10 22:22:44,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:22:44,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:44,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:44,836 INFO L225 Difference]: With dead ends: 14235 [2022-02-10 22:22:44,836 INFO L226 Difference]: Without dead ends: 13712 [2022-02-10 22:22:44,836 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:22:44,837 INFO L934 BasicCegarLoop]: 230 mSDtfsCounter, 108 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:44,837 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 380 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:22:44,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13712 states. [2022-02-10 22:22:44,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13712 to 9931. [2022-02-10 22:22:44,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9931 states, 9930 states have (on average 2.7618328298086605) internal successors, (27425), 9930 states have internal predecessors, (27425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:45,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9931 states to 9931 states and 27425 transitions. [2022-02-10 22:22:45,002 INFO L78 Accepts]: Start accepts. Automaton has 9931 states and 27425 transitions. Word has length 109 [2022-02-10 22:22:45,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:45,002 INFO L470 AbstractCegarLoop]: Abstraction has 9931 states and 27425 transitions. [2022-02-10 22:22:45,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:45,003 INFO L276 IsEmpty]: Start isEmpty. Operand 9931 states and 27425 transitions. [2022-02-10 22:22:45,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:45,017 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:45,017 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:45,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-10 22:22:45,017 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:45,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:45,018 INFO L85 PathProgramCache]: Analyzing trace with hash -958186088, now seen corresponding path program 1 times [2022-02-10 22:22:45,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:45,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779610191] [2022-02-10 22:22:45,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:45,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:45,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:45,037 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:45,037 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779610191] [2022-02-10 22:22:45,037 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779610191] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:45,037 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:45,037 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:22:45,037 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597587264] [2022-02-10 22:22:45,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:45,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:22:45,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:45,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:22:45,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:22:45,038 INFO L87 Difference]: Start difference. First operand 9931 states and 27425 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:45,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:45,174 INFO L93 Difference]: Finished difference Result 10120 states and 27148 transitions. [2022-02-10 22:22:45,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:22:45,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:45,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:45,191 INFO L225 Difference]: With dead ends: 10120 [2022-02-10 22:22:45,191 INFO L226 Difference]: Without dead ends: 10120 [2022-02-10 22:22:45,191 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:22:45,192 INFO L934 BasicCegarLoop]: 192 mSDtfsCounter, 119 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:45,192 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 280 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:22:45,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10120 states. [2022-02-10 22:22:45,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10120 to 9280. [2022-02-10 22:22:45,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9280 states, 9279 states have (on average 2.6963034809785538) internal successors, (25019), 9279 states have internal predecessors, (25019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:45,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9280 states to 9280 states and 25019 transitions. [2022-02-10 22:22:45,359 INFO L78 Accepts]: Start accepts. Automaton has 9280 states and 25019 transitions. Word has length 109 [2022-02-10 22:22:45,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:45,359 INFO L470 AbstractCegarLoop]: Abstraction has 9280 states and 25019 transitions. [2022-02-10 22:22:45,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:45,360 INFO L276 IsEmpty]: Start isEmpty. Operand 9280 states and 25019 transitions. [2022-02-10 22:22:45,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:45,374 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:45,374 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:45,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-10 22:22:45,375 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:45,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:45,375 INFO L85 PathProgramCache]: Analyzing trace with hash -2026968200, now seen corresponding path program 1 times [2022-02-10 22:22:45,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:45,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57239149] [2022-02-10 22:22:45,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:45,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:45,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:45,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:45,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57239149] [2022-02-10 22:22:45,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57239149] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:45,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:45,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:45,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181245853] [2022-02-10 22:22:45,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:45,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:45,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:45,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:45,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:45,525 INFO L87 Difference]: Start difference. First operand 9280 states and 25019 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:46,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:46,474 INFO L93 Difference]: Finished difference Result 12057 states and 32171 transitions. [2022-02-10 22:22:46,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-10 22:22:46,474 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:46,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:46,494 INFO L225 Difference]: With dead ends: 12057 [2022-02-10 22:22:46,494 INFO L226 Difference]: Without dead ends: 11168 [2022-02-10 22:22:46,497 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1334 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1028, Invalid=3394, Unknown=0, NotChecked=0, Total=4422 [2022-02-10 22:22:46,497 INFO L934 BasicCegarLoop]: 468 mSDtfsCounter, 783 mSDsluCounter, 2686 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 3069 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:46,497 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [783 Valid, 3069 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:46,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11168 states. [2022-02-10 22:22:46,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11168 to 9060. [2022-02-10 22:22:46,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9060 states, 9059 states have (on average 2.7005188210619275) internal successors, (24464), 9059 states have internal predecessors, (24464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:46,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9060 states to 9060 states and 24464 transitions. [2022-02-10 22:22:46,640 INFO L78 Accepts]: Start accepts. Automaton has 9060 states and 24464 transitions. Word has length 109 [2022-02-10 22:22:46,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:46,641 INFO L470 AbstractCegarLoop]: Abstraction has 9060 states and 24464 transitions. [2022-02-10 22:22:46,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:46,641 INFO L276 IsEmpty]: Start isEmpty. Operand 9060 states and 24464 transitions. [2022-02-10 22:22:46,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:46,652 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:46,652 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:46,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-10 22:22:46,652 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:46,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:46,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1022754920, now seen corresponding path program 2 times [2022-02-10 22:22:46,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:46,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371043849] [2022-02-10 22:22:46,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:46,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:46,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:46,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:46,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371043849] [2022-02-10 22:22:46,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371043849] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:46,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:46,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:46,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078690757] [2022-02-10 22:22:46,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:46,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:46,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:46,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:46,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:46,791 INFO L87 Difference]: Start difference. First operand 9060 states and 24464 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:47,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:47,685 INFO L93 Difference]: Finished difference Result 11337 states and 30482 transitions. [2022-02-10 22:22:47,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-10 22:22:47,685 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:47,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:47,700 INFO L225 Difference]: With dead ends: 11337 [2022-02-10 22:22:47,700 INFO L226 Difference]: Without dead ends: 10723 [2022-02-10 22:22:47,701 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1144 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=850, Invalid=3056, Unknown=0, NotChecked=0, Total=3906 [2022-02-10 22:22:47,701 INFO L934 BasicCegarLoop]: 441 mSDtfsCounter, 509 mSDsluCounter, 4513 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 4849 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:47,701 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [509 Valid, 4849 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:22:47,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10723 states. [2022-02-10 22:22:47,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10723 to 9064. [2022-02-10 22:22:47,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9064 states, 9063 states have (on average 2.7000993048659385) internal successors, (24471), 9063 states have internal predecessors, (24471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:47,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9064 states to 9064 states and 24471 transitions. [2022-02-10 22:22:47,818 INFO L78 Accepts]: Start accepts. Automaton has 9064 states and 24471 transitions. Word has length 109 [2022-02-10 22:22:47,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:47,819 INFO L470 AbstractCegarLoop]: Abstraction has 9064 states and 24471 transitions. [2022-02-10 22:22:47,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:47,819 INFO L276 IsEmpty]: Start isEmpty. Operand 9064 states and 24471 transitions. [2022-02-10 22:22:47,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:47,829 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:47,829 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:47,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-10 22:22:47,829 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:47,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:47,830 INFO L85 PathProgramCache]: Analyzing trace with hash -2080051074, now seen corresponding path program 3 times [2022-02-10 22:22:47,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:47,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090142628] [2022-02-10 22:22:47,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:47,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:47,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:47,961 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:47,961 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090142628] [2022-02-10 22:22:47,961 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090142628] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:47,961 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:47,961 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:47,961 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271128579] [2022-02-10 22:22:47,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:47,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:47,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:47,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:47,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:47,962 INFO L87 Difference]: Start difference. First operand 9064 states and 24471 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:48,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:48,650 INFO L93 Difference]: Finished difference Result 11173 states and 30052 transitions. [2022-02-10 22:22:48,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:22:48,650 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:48,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:48,664 INFO L225 Difference]: With dead ends: 11173 [2022-02-10 22:22:48,664 INFO L226 Difference]: Without dead ends: 10602 [2022-02-10 22:22:48,665 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=623, Invalid=2347, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:22:48,666 INFO L934 BasicCegarLoop]: 429 mSDtfsCounter, 430 mSDsluCounter, 4066 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 4405 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:48,666 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 4405 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:22:48,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10602 states. [2022-02-10 22:22:48,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10602 to 9068. [2022-02-10 22:22:48,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9068 states, 9067 states have (on average 2.6996801588176904) internal successors, (24478), 9067 states have internal predecessors, (24478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:48,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9068 states to 9068 states and 24478 transitions. [2022-02-10 22:22:48,783 INFO L78 Accepts]: Start accepts. Automaton has 9068 states and 24478 transitions. Word has length 109 [2022-02-10 22:22:48,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:48,783 INFO L470 AbstractCegarLoop]: Abstraction has 9068 states and 24478 transitions. [2022-02-10 22:22:48,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:48,783 INFO L276 IsEmpty]: Start isEmpty. Operand 9068 states and 24478 transitions. [2022-02-10 22:22:48,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:48,793 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:48,793 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:48,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-10 22:22:48,793 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:48,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:48,794 INFO L85 PathProgramCache]: Analyzing trace with hash -290488620, now seen corresponding path program 4 times [2022-02-10 22:22:48,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:48,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96104083] [2022-02-10 22:22:48,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:48,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:48,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:48,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:48,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96104083] [2022-02-10 22:22:48,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96104083] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:48,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:48,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:48,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279148414] [2022-02-10 22:22:48,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:48,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:48,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:48,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:48,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:48,923 INFO L87 Difference]: Start difference. First operand 9068 states and 24478 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:49,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:49,561 INFO L93 Difference]: Finished difference Result 11048 states and 29723 transitions. [2022-02-10 22:22:49,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:22:49,562 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:49,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:49,581 INFO L225 Difference]: With dead ends: 11048 [2022-02-10 22:22:49,581 INFO L226 Difference]: Without dead ends: 10520 [2022-02-10 22:22:49,582 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=446, Invalid=1716, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:22:49,583 INFO L934 BasicCegarLoop]: 417 mSDtfsCounter, 367 mSDsluCounter, 3970 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 4306 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:49,583 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 4306 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:22:49,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10520 states. [2022-02-10 22:22:49,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10520 to 9072. [2022-02-10 22:22:49,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9072 states, 9071 states have (on average 2.6992613824275162) internal successors, (24485), 9071 states have internal predecessors, (24485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:49,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9072 states to 9072 states and 24485 transitions. [2022-02-10 22:22:49,753 INFO L78 Accepts]: Start accepts. Automaton has 9072 states and 24485 transitions. Word has length 109 [2022-02-10 22:22:49,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:49,754 INFO L470 AbstractCegarLoop]: Abstraction has 9072 states and 24485 transitions. [2022-02-10 22:22:49,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:49,754 INFO L276 IsEmpty]: Start isEmpty. Operand 9072 states and 24485 transitions. [2022-02-10 22:22:49,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:49,768 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:49,768 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:49,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-10 22:22:49,768 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:49,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:49,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1496446334, now seen corresponding path program 5 times [2022-02-10 22:22:49,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:49,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140820459] [2022-02-10 22:22:49,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:49,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:49,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:49,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:49,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140820459] [2022-02-10 22:22:49,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140820459] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:49,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:49,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:49,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828789056] [2022-02-10 22:22:49,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:49,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:49,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:49,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:49,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:49,914 INFO L87 Difference]: Start difference. First operand 9072 states and 24485 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:50,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:50,359 INFO L93 Difference]: Finished difference Result 10884 states and 29293 transitions. [2022-02-10 22:22:50,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:22:50,360 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:50,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:50,374 INFO L225 Difference]: With dead ends: 10884 [2022-02-10 22:22:50,374 INFO L226 Difference]: Without dead ends: 10399 [2022-02-10 22:22:50,374 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:22:50,375 INFO L934 BasicCegarLoop]: 405 mSDtfsCounter, 312 mSDsluCounter, 2879 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:50,375 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 3225 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:50,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10399 states. [2022-02-10 22:22:50,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10399 to 9076. [2022-02-10 22:22:50,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9076 states, 9075 states have (on average 2.6988429752066114) internal successors, (24492), 9075 states have internal predecessors, (24492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:50,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9076 states to 9076 states and 24492 transitions. [2022-02-10 22:22:50,492 INFO L78 Accepts]: Start accepts. Automaton has 9076 states and 24492 transitions. Word has length 109 [2022-02-10 22:22:50,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:50,492 INFO L470 AbstractCegarLoop]: Abstraction has 9076 states and 24492 transitions. [2022-02-10 22:22:50,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:50,493 INFO L276 IsEmpty]: Start isEmpty. Operand 9076 states and 24492 transitions. [2022-02-10 22:22:50,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:50,503 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:50,503 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:50,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-10 22:22:50,503 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:50,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:50,504 INFO L85 PathProgramCache]: Analyzing trace with hash -2116900308, now seen corresponding path program 6 times [2022-02-10 22:22:50,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:50,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566603840] [2022-02-10 22:22:50,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:50,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:50,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:50,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:50,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566603840] [2022-02-10 22:22:50,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566603840] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:50,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:50,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:50,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325350896] [2022-02-10 22:22:50,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:50,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:50,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:50,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:50,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:50,620 INFO L87 Difference]: Start difference. First operand 9076 states and 24492 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:51,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:51,033 INFO L93 Difference]: Finished difference Result 10794 states and 29050 transitions. [2022-02-10 22:22:51,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:22:51,034 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:51,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:51,047 INFO L225 Difference]: With dead ends: 10794 [2022-02-10 22:22:51,048 INFO L226 Difference]: Without dead ends: 10270 [2022-02-10 22:22:51,048 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=934, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:22:51,048 INFO L934 BasicCegarLoop]: 394 mSDtfsCounter, 291 mSDsluCounter, 4068 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 4394 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:51,048 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 4394 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:51,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10270 states. [2022-02-10 22:22:51,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10270 to 9034. [2022-02-10 22:22:51,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9034 states, 9033 states have (on average 2.7008745710173807) internal successors, (24397), 9033 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:51,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9034 states to 9034 states and 24397 transitions. [2022-02-10 22:22:51,166 INFO L78 Accepts]: Start accepts. Automaton has 9034 states and 24397 transitions. Word has length 109 [2022-02-10 22:22:51,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:51,166 INFO L470 AbstractCegarLoop]: Abstraction has 9034 states and 24397 transitions. [2022-02-10 22:22:51,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:51,167 INFO L276 IsEmpty]: Start isEmpty. Operand 9034 states and 24397 transitions. [2022-02-10 22:22:51,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:51,177 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:51,177 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:51,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-10 22:22:51,177 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:51,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:51,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1522439320, now seen corresponding path program 7 times [2022-02-10 22:22:51,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:51,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469701421] [2022-02-10 22:22:51,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:51,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:51,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:51,317 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:51,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469701421] [2022-02-10 22:22:51,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469701421] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:51,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:51,317 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:51,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397445411] [2022-02-10 22:22:51,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:51,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:51,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:51,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:51,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:51,318 INFO L87 Difference]: Start difference. First operand 9034 states and 24397 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:51,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:51,823 INFO L93 Difference]: Finished difference Result 11006 states and 29645 transitions. [2022-02-10 22:22:51,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:22:51,823 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:51,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:51,838 INFO L225 Difference]: With dead ends: 11006 [2022-02-10 22:22:51,839 INFO L226 Difference]: Without dead ends: 10521 [2022-02-10 22:22:51,839 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=312, Invalid=1020, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:22:51,839 INFO L934 BasicCegarLoop]: 374 mSDtfsCounter, 278 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:51,839 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 3103 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:22:51,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10521 states. [2022-02-10 22:22:51,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10521 to 9054. [2022-02-10 22:22:51,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.7005412570418645) internal successors, (24448), 9053 states have internal predecessors, (24448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:51,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24448 transitions. [2022-02-10 22:22:51,971 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24448 transitions. Word has length 109 [2022-02-10 22:22:51,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:51,971 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24448 transitions. [2022-02-10 22:22:51,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:51,972 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24448 transitions. [2022-02-10 22:22:51,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:51,983 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:51,983 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:51,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-10 22:22:51,983 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:51,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:51,983 INFO L85 PathProgramCache]: Analyzing trace with hash -840818666, now seen corresponding path program 8 times [2022-02-10 22:22:51,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:51,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873258405] [2022-02-10 22:22:51,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:51,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:52,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:52,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:52,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873258405] [2022-02-10 22:22:52,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873258405] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:52,130 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:52,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:52,130 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182800220] [2022-02-10 22:22:52,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:52,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:52,130 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:52,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:52,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:52,131 INFO L87 Difference]: Start difference. First operand 9054 states and 24448 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:52,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:52,698 INFO L93 Difference]: Finished difference Result 10964 states and 29534 transitions. [2022-02-10 22:22:52,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:22:52,698 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:52,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:52,711 INFO L225 Difference]: With dead ends: 10964 [2022-02-10 22:22:52,712 INFO L226 Difference]: Without dead ends: 10478 [2022-02-10 22:22:52,712 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=389, Invalid=1171, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:22:52,712 INFO L934 BasicCegarLoop]: 375 mSDtfsCounter, 264 mSDsluCounter, 2785 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:52,712 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 3112 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:52,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10478 states. [2022-02-10 22:22:52,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10478 to 9050. [2022-02-10 22:22:52,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.700519394408222) internal successors, (24437), 9049 states have internal predecessors, (24437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:52,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24437 transitions. [2022-02-10 22:22:52,828 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24437 transitions. Word has length 109 [2022-02-10 22:22:52,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:52,828 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24437 transitions. [2022-02-10 22:22:52,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:52,828 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24437 transitions. [2022-02-10 22:22:52,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:52,838 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:52,839 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:52,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-10 22:22:52,839 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:52,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:52,839 INFO L85 PathProgramCache]: Analyzing trace with hash -140131110, now seen corresponding path program 9 times [2022-02-10 22:22:52,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:52,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590875674] [2022-02-10 22:22:52,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:52,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:52,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:52,960 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:52,961 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590875674] [2022-02-10 22:22:52,961 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590875674] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:52,961 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:52,961 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:52,961 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121213667] [2022-02-10 22:22:52,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:52,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:52,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:52,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:52,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:52,962 INFO L87 Difference]: Start difference. First operand 9050 states and 24437 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:53,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:53,489 INFO L93 Difference]: Finished difference Result 11032 states and 29701 transitions. [2022-02-10 22:22:53,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:22:53,489 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:53,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:53,503 INFO L225 Difference]: With dead ends: 11032 [2022-02-10 22:22:53,503 INFO L226 Difference]: Without dead ends: 10506 [2022-02-10 22:22:53,504 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=497, Invalid=1309, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 22:22:53,504 INFO L934 BasicCegarLoop]: 375 mSDtfsCounter, 331 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:53,504 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2461 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:53,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10506 states. [2022-02-10 22:22:53,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10506 to 9046. [2022-02-10 22:22:53,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9046 states, 9045 states have (on average 2.7004975124378108) internal successors, (24426), 9045 states have internal predecessors, (24426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:53,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 24426 transitions. [2022-02-10 22:22:53,623 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 24426 transitions. Word has length 109 [2022-02-10 22:22:53,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:53,623 INFO L470 AbstractCegarLoop]: Abstraction has 9046 states and 24426 transitions. [2022-02-10 22:22:53,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:53,623 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 24426 transitions. [2022-02-10 22:22:53,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:53,634 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:53,634 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:53,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-10 22:22:53,634 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:53,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:53,634 INFO L85 PathProgramCache]: Analyzing trace with hash 937556918, now seen corresponding path program 10 times [2022-02-10 22:22:53,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:53,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895908707] [2022-02-10 22:22:53,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:53,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:53,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:53,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:53,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895908707] [2022-02-10 22:22:53,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895908707] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:53,764 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:53,764 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:53,764 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437014276] [2022-02-10 22:22:53,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:53,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:53,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:53,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:53,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:53,765 INFO L87 Difference]: Start difference. First operand 9046 states and 24426 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:54,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:54,318 INFO L93 Difference]: Finished difference Result 11162 states and 30045 transitions. [2022-02-10 22:22:54,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:22:54,319 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:54,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:54,333 INFO L225 Difference]: With dead ends: 11162 [2022-02-10 22:22:54,333 INFO L226 Difference]: Without dead ends: 10634 [2022-02-10 22:22:54,334 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=453, Invalid=1617, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:22:54,334 INFO L934 BasicCegarLoop]: 389 mSDtfsCounter, 345 mSDsluCounter, 3740 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 4055 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:54,334 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 4055 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:22:54,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10634 states. [2022-02-10 22:22:54,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10634 to 9050. [2022-02-10 22:22:54,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.7000773566139906) internal successors, (24433), 9049 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:54,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24433 transitions. [2022-02-10 22:22:54,454 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24433 transitions. Word has length 109 [2022-02-10 22:22:54,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:54,454 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24433 transitions. [2022-02-10 22:22:54,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:54,454 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24433 transitions. [2022-02-10 22:22:54,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:54,464 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:54,464 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:54,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-10 22:22:54,464 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:54,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:54,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1570475424, now seen corresponding path program 11 times [2022-02-10 22:22:54,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:54,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365577623] [2022-02-10 22:22:54,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:54,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:54,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:54,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:54,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365577623] [2022-02-10 22:22:54,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365577623] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:54,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:54,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:54,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749036693] [2022-02-10 22:22:54,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:54,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:54,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:54,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:54,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:54,617 INFO L87 Difference]: Start difference. First operand 9050 states and 24433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:55,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:55,214 INFO L93 Difference]: Finished difference Result 10998 states and 29615 transitions. [2022-02-10 22:22:55,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:22:55,215 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:55,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:55,250 INFO L225 Difference]: With dead ends: 10998 [2022-02-10 22:22:55,250 INFO L226 Difference]: Without dead ends: 10513 [2022-02-10 22:22:55,251 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:22:55,251 INFO L934 BasicCegarLoop]: 381 mSDtfsCounter, 282 mSDsluCounter, 3576 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3896 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:55,251 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3896 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:22:55,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10513 states. [2022-02-10 22:22:55,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10513 to 9054. [2022-02-10 22:22:55,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.699657572075555) internal successors, (24440), 9053 states have internal predecessors, (24440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:55,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24440 transitions. [2022-02-10 22:22:55,457 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24440 transitions. Word has length 109 [2022-02-10 22:22:55,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:55,457 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24440 transitions. [2022-02-10 22:22:55,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:55,457 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24440 transitions. [2022-02-10 22:22:55,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:55,471 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:55,471 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:55,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-10 22:22:55,472 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:55,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:55,472 INFO L85 PathProgramCache]: Analyzing trace with hash -888854770, now seen corresponding path program 12 times [2022-02-10 22:22:55,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:55,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423302437] [2022-02-10 22:22:55,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:55,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:55,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:55,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:55,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423302437] [2022-02-10 22:22:55,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423302437] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:55,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:55,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:55,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113753268] [2022-02-10 22:22:55,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:55,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:55,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:55,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:55,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:55,615 INFO L87 Difference]: Start difference. First operand 9054 states and 24440 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:56,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:56,085 INFO L93 Difference]: Finished difference Result 10932 states and 29438 transitions. [2022-02-10 22:22:56,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:22:56,086 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:56,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:56,116 INFO L225 Difference]: With dead ends: 10932 [2022-02-10 22:22:56,117 INFO L226 Difference]: Without dead ends: 10438 [2022-02-10 22:22:56,117 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:22:56,117 INFO L934 BasicCegarLoop]: 373 mSDtfsCounter, 269 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 3621 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:56,118 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 3621 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:56,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10438 states. [2022-02-10 22:22:56,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10438 to 9042. [2022-02-10 22:22:56,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9042 states, 9041 states have (on average 2.700475611104966) internal successors, (24415), 9041 states have internal predecessors, (24415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:56,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9042 states to 9042 states and 24415 transitions. [2022-02-10 22:22:56,303 INFO L78 Accepts]: Start accepts. Automaton has 9042 states and 24415 transitions. Word has length 109 [2022-02-10 22:22:56,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:56,303 INFO L470 AbstractCegarLoop]: Abstraction has 9042 states and 24415 transitions. [2022-02-10 22:22:56,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:56,303 INFO L276 IsEmpty]: Start isEmpty. Operand 9042 states and 24415 transitions. [2022-02-10 22:22:56,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:56,318 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:56,318 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:56,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-10 22:22:56,318 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:56,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:56,319 INFO L85 PathProgramCache]: Analyzing trace with hash -565920918, now seen corresponding path program 13 times [2022-02-10 22:22:56,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:56,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163497766] [2022-02-10 22:22:56,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:56,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:56,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:56,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:56,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163497766] [2022-02-10 22:22:56,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163497766] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:56,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:56,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:56,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994447064] [2022-02-10 22:22:56,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:56,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:56,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:56,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:56,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:56,462 INFO L87 Difference]: Start difference. First operand 9042 states and 24415 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:57,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:57,129 INFO L93 Difference]: Finished difference Result 11295 states and 30392 transitions. [2022-02-10 22:22:57,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:22:57,129 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:57,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:57,149 INFO L225 Difference]: With dead ends: 11295 [2022-02-10 22:22:57,149 INFO L226 Difference]: Without dead ends: 10724 [2022-02-10 22:22:57,150 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:22:57,150 INFO L934 BasicCegarLoop]: 398 mSDtfsCounter, 408 mSDsluCounter, 3826 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 4141 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:57,150 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 4141 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:22:57,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10724 states. [2022-02-10 22:22:57,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10724 to 9046. [2022-02-10 22:22:57,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9046 states, 9045 states have (on average 2.700055279159757) internal successors, (24422), 9045 states have internal predecessors, (24422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:57,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 24422 transitions. [2022-02-10 22:22:57,304 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 24422 transitions. Word has length 109 [2022-02-10 22:22:57,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:57,304 INFO L470 AbstractCegarLoop]: Abstraction has 9046 states and 24422 transitions. [2022-02-10 22:22:57,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:57,305 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 24422 transitions. [2022-02-10 22:22:57,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:57,315 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:57,315 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:57,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-10 22:22:57,315 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:57,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:57,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1223641536, now seen corresponding path program 14 times [2022-02-10 22:22:57,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:57,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262515214] [2022-02-10 22:22:57,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:57,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:57,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:57,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:57,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262515214] [2022-02-10 22:22:57,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262515214] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:57,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:57,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:57,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668179421] [2022-02-10 22:22:57,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:57,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:57,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:57,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:57,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:57,450 INFO L87 Difference]: Start difference. First operand 9046 states and 24422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:58,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:58,081 INFO L93 Difference]: Finished difference Result 11170 states and 30063 transitions. [2022-02-10 22:22:58,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:22:58,081 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:58,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:58,097 INFO L225 Difference]: With dead ends: 11170 [2022-02-10 22:22:58,097 INFO L226 Difference]: Without dead ends: 10642 [2022-02-10 22:22:58,097 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=465, Invalid=1697, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:22:58,098 INFO L934 BasicCegarLoop]: 390 mSDtfsCounter, 343 mSDsluCounter, 3745 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 4061 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:58,098 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 4061 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:22:58,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2022-02-10 22:22:58,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 9050. [2022-02-10 22:22:58,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.6996353188197593) internal successors, (24429), 9049 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:58,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24429 transitions. [2022-02-10 22:22:58,217 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24429 transitions. Word has length 109 [2022-02-10 22:22:58,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:58,217 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24429 transitions. [2022-02-10 22:22:58,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:58,217 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24429 transitions. [2022-02-10 22:22:58,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:58,227 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:58,227 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:58,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-10 22:22:58,227 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:58,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:58,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1284390806, now seen corresponding path program 15 times [2022-02-10 22:22:58,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:58,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850762782] [2022-02-10 22:22:58,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:58,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:58,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:58,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:58,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850762782] [2022-02-10 22:22:58,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850762782] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:58,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:58,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:58,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864165825] [2022-02-10 22:22:58,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:58,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:58,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:58,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:58,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:58,377 INFO L87 Difference]: Start difference. First operand 9050 states and 24429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:58,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:58,863 INFO L93 Difference]: Finished difference Result 11006 states and 29633 transitions. [2022-02-10 22:22:58,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:22:58,863 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:58,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:58,878 INFO L225 Difference]: With dead ends: 11006 [2022-02-10 22:22:58,878 INFO L226 Difference]: Without dead ends: 10521 [2022-02-10 22:22:58,878 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:22:58,879 INFO L934 BasicCegarLoop]: 378 mSDtfsCounter, 280 mSDsluCounter, 3358 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3676 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:58,879 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3676 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:58,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10521 states. [2022-02-10 22:22:58,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10521 to 9054. [2022-02-10 22:22:58,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.6992157295924004) internal successors, (24436), 9053 states have internal predecessors, (24436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:59,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24436 transitions. [2022-02-10 22:22:59,001 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24436 transitions. Word has length 109 [2022-02-10 22:22:59,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:59,002 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24436 transitions. [2022-02-10 22:22:59,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:59,002 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24436 transitions. [2022-02-10 22:22:59,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:59,013 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:59,013 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:59,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-10 22:22:59,013 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:59,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:59,013 INFO L85 PathProgramCache]: Analyzing trace with hash -602770152, now seen corresponding path program 16 times [2022-02-10 22:22:59,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:59,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060808006] [2022-02-10 22:22:59,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:59,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:59,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:59,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:59,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060808006] [2022-02-10 22:22:59,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060808006] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:59,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:59,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:22:59,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096114191] [2022-02-10 22:22:59,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:59,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:22:59,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:59,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:22:59,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:22:59,151 INFO L87 Difference]: Start difference. First operand 9054 states and 24436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:59,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:59,662 INFO L93 Difference]: Finished difference Result 10932 states and 29434 transitions. [2022-02-10 22:22:59,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:22:59,663 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:22:59,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:59,676 INFO L225 Difference]: With dead ends: 10932 [2022-02-10 22:22:59,677 INFO L226 Difference]: Without dead ends: 10434 [2022-02-10 22:22:59,677 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:22:59,677 INFO L934 BasicCegarLoop]: 370 mSDtfsCounter, 267 mSDsluCounter, 3822 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 4132 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:59,677 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 4132 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:22:59,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10434 states. [2022-02-10 22:22:59,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10434 to 9038. [2022-02-10 22:22:59,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9038 states, 9037 states have (on average 2.700453690383977) internal successors, (24404), 9037 states have internal predecessors, (24404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:59,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9038 states to 9038 states and 24404 transitions. [2022-02-10 22:22:59,875 INFO L78 Accepts]: Start accepts. Automaton has 9038 states and 24404 transitions. Word has length 109 [2022-02-10 22:22:59,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:59,875 INFO L470 AbstractCegarLoop]: Abstraction has 9038 states and 24404 transitions. [2022-02-10 22:22:59,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:59,875 INFO L276 IsEmpty]: Start isEmpty. Operand 9038 states and 24404 transitions. [2022-02-10 22:22:59,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:22:59,886 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:59,886 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:59,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-10 22:22:59,886 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:59,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:59,886 INFO L85 PathProgramCache]: Analyzing trace with hash 71721492, now seen corresponding path program 17 times [2022-02-10 22:22:59,886 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:59,887 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224626022] [2022-02-10 22:22:59,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:59,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:00,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:00,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:00,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224626022] [2022-02-10 22:23:00,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224626022] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:00,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:00,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:00,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057169349] [2022-02-10 22:23:00,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:00,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:00,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:00,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:00,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:00,018 INFO L87 Difference]: Start difference. First operand 9038 states and 24404 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:00,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:00,820 INFO L93 Difference]: Finished difference Result 11315 states and 30422 transitions. [2022-02-10 22:23:00,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-10 22:23:00,820 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:00,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:00,836 INFO L225 Difference]: With dead ends: 11315 [2022-02-10 22:23:00,836 INFO L226 Difference]: Without dead ends: 10701 [2022-02-10 22:23:00,837 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:23:00,837 INFO L934 BasicCegarLoop]: 407 mSDtfsCounter, 489 mSDsluCounter, 4198 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 4507 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:00,837 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 4507 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:00,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-02-10 22:23:00,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 9042. [2022-02-10 22:23:00,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9042 states, 9041 states have (on average 2.700033182170114) internal successors, (24411), 9041 states have internal predecessors, (24411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:00,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9042 states to 9042 states and 24411 transitions. [2022-02-10 22:23:00,974 INFO L78 Accepts]: Start accepts. Automaton has 9042 states and 24411 transitions. Word has length 109 [2022-02-10 22:23:00,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:00,974 INFO L470 AbstractCegarLoop]: Abstraction has 9042 states and 24411 transitions. [2022-02-10 22:23:00,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:00,975 INFO L276 IsEmpty]: Start isEmpty. Operand 9042 states and 24411 transitions. [2022-02-10 22:23:00,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:00,985 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:00,985 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:00,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-10 22:23:00,985 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:00,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:00,986 INFO L85 PathProgramCache]: Analyzing trace with hash -985574662, now seen corresponding path program 18 times [2022-02-10 22:23:00,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:00,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853706865] [2022-02-10 22:23:00,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:00,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:01,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:01,117 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:01,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853706865] [2022-02-10 22:23:01,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853706865] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:01,117 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:01,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:01,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201975888] [2022-02-10 22:23:01,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:01,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:01,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:01,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:01,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:01,118 INFO L87 Difference]: Start difference. First operand 9042 states and 24411 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:01,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:01,810 INFO L93 Difference]: Finished difference Result 11167 states and 30036 transitions. [2022-02-10 22:23:01,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:23:01,811 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:01,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:01,827 INFO L225 Difference]: With dead ends: 11167 [2022-02-10 22:23:01,827 INFO L226 Difference]: Without dead ends: 10596 [2022-02-10 22:23:01,828 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=637, Invalid=2333, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:23:01,828 INFO L934 BasicCegarLoop]: 395 mSDtfsCounter, 413 mSDsluCounter, 4100 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 4406 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:01,828 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 4406 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:01,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10596 states. [2022-02-10 22:23:01,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10596 to 9046. [2022-02-10 22:23:01,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9046 states, 9045 states have (on average 2.6996130458817027) internal successors, (24418), 9045 states have internal predecessors, (24418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:01,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 24418 transitions. [2022-02-10 22:23:01,950 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 24418 transitions. Word has length 109 [2022-02-10 22:23:01,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:01,950 INFO L470 AbstractCegarLoop]: Abstraction has 9046 states and 24418 transitions. [2022-02-10 22:23:01,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:01,950 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 24418 transitions. [2022-02-10 22:23:01,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:01,960 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:01,960 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:01,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-10 22:23:01,961 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:01,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:01,961 INFO L85 PathProgramCache]: Analyzing trace with hash 803987792, now seen corresponding path program 19 times [2022-02-10 22:23:01,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:01,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835372960] [2022-02-10 22:23:01,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:01,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:02,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:02,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:02,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835372960] [2022-02-10 22:23:02,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835372960] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:02,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:02,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:02,096 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083827493] [2022-02-10 22:23:02,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:02,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:02,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:02,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:02,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:02,096 INFO L87 Difference]: Start difference. First operand 9046 states and 24418 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:02,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:02,711 INFO L93 Difference]: Finished difference Result 11050 states and 29729 transitions. [2022-02-10 22:23:02,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:23:02,711 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:02,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:02,727 INFO L225 Difference]: With dead ends: 11050 [2022-02-10 22:23:02,727 INFO L226 Difference]: Without dead ends: 10522 [2022-02-10 22:23:02,727 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:23:02,728 INFO L934 BasicCegarLoop]: 383 mSDtfsCounter, 350 mSDsluCounter, 3988 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 4292 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:02,728 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 4292 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:02,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10522 states. [2022-02-10 22:23:02,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10522 to 9050. [2022-02-10 22:23:02,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.6991932810255275) internal successors, (24425), 9049 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:02,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24425 transitions. [2022-02-10 22:23:02,872 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24425 transitions. Word has length 109 [2022-02-10 22:23:02,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:02,872 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24425 transitions. [2022-02-10 22:23:02,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:02,873 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24425 transitions. [2022-02-10 22:23:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:02,883 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:02,883 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:02,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-10 22:23:02,883 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:02,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1704044550, now seen corresponding path program 20 times [2022-02-10 22:23:02,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:02,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836091905] [2022-02-10 22:23:02,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:02,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:03,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:03,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:03,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836091905] [2022-02-10 22:23:03,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836091905] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:03,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:03,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:03,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668138968] [2022-02-10 22:23:03,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:03,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:03,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:03,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:03,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:03,016 INFO L87 Difference]: Start difference. First operand 9050 states and 24425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:03,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:03,469 INFO L93 Difference]: Finished difference Result 10902 states and 29343 transitions. [2022-02-10 22:23:03,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:03,469 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:03,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:03,485 INFO L225 Difference]: With dead ends: 10902 [2022-02-10 22:23:03,485 INFO L226 Difference]: Without dead ends: 10417 [2022-02-10 22:23:03,486 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1088, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:23:03,486 INFO L934 BasicCegarLoop]: 371 mSDtfsCounter, 290 mSDsluCounter, 3255 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3569 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:03,486 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 3569 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:03,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10417 states. [2022-02-10 22:23:03,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10417 to 9054. [2022-02-10 22:23:03,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.6987738871092457) internal successors, (24432), 9053 states have internal predecessors, (24432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:03,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24432 transitions. [2022-02-10 22:23:03,612 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24432 transitions. Word has length 109 [2022-02-10 22:23:03,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:03,612 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24432 transitions. [2022-02-10 22:23:03,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:03,612 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24432 transitions. [2022-02-10 22:23:03,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:03,622 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:03,622 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:03,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-10 22:23:03,623 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:03,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:03,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1022423896, now seen corresponding path program 21 times [2022-02-10 22:23:03,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:03,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665314203] [2022-02-10 22:23:03,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:03,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:03,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:03,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:03,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665314203] [2022-02-10 22:23:03,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665314203] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:03,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:03,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:03,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867971514] [2022-02-10 22:23:03,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:03,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:03,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:03,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:03,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:03,766 INFO L87 Difference]: Start difference. First operand 9054 states and 24432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:04,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:04,191 INFO L93 Difference]: Finished difference Result 10772 states and 28990 transitions. [2022-02-10 22:23:04,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:23:04,191 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:04,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:04,205 INFO L225 Difference]: With dead ends: 10772 [2022-02-10 22:23:04,205 INFO L226 Difference]: Without dead ends: 10244 [2022-02-10 22:23:04,206 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=335, Invalid=997, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:23:04,206 INFO L934 BasicCegarLoop]: 363 mSDtfsCounter, 267 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 3811 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:04,206 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 3811 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:04,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10244 states. [2022-02-10 22:23:04,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10244 to 9008. [2022-02-10 22:23:04,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9008 states, 9007 states have (on average 2.701232374819585) internal successors, (24330), 9007 states have internal predecessors, (24330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:04,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9008 states to 9008 states and 24330 transitions. [2022-02-10 22:23:04,321 INFO L78 Accepts]: Start accepts. Automaton has 9008 states and 24330 transitions. Word has length 109 [2022-02-10 22:23:04,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:04,321 INFO L470 AbstractCegarLoop]: Abstraction has 9008 states and 24330 transitions. [2022-02-10 22:23:04,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:04,322 INFO L276 IsEmpty]: Start isEmpty. Operand 9008 states and 24330 transitions. [2022-02-10 22:23:04,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:04,331 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:04,332 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:04,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-10 22:23:04,332 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:04,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:04,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1360774976, now seen corresponding path program 22 times [2022-02-10 22:23:04,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:04,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379077207] [2022-02-10 22:23:04,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:04,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:04,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:04,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:04,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379077207] [2022-02-10 22:23:04,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379077207] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:04,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:04,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:04,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742367032] [2022-02-10 22:23:04,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:04,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:04,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:04,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:04,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:04,480 INFO L87 Difference]: Start difference. First operand 9008 states and 24330 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:04,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:04,969 INFO L93 Difference]: Finished difference Result 11068 states and 29820 transitions. [2022-02-10 22:23:04,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:23:04,969 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:04,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:04,986 INFO L225 Difference]: With dead ends: 11068 [2022-02-10 22:23:04,986 INFO L226 Difference]: Without dead ends: 10583 [2022-02-10 22:23:04,986 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:23:04,987 INFO L934 BasicCegarLoop]: 337 mSDtfsCounter, 233 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:04,987 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 3531 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:05,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10583 states. [2022-02-10 22:23:05,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10583 to 9032. [2022-02-10 22:23:05,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7009190565828813) internal successors, (24392), 9031 states have internal predecessors, (24392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:05,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24392 transitions. [2022-02-10 22:23:05,116 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24392 transitions. Word has length 109 [2022-02-10 22:23:05,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:05,116 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24392 transitions. [2022-02-10 22:23:05,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:05,117 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24392 transitions. [2022-02-10 22:23:05,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:05,127 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:05,127 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:05,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-10 22:23:05,127 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:05,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:05,127 INFO L85 PathProgramCache]: Analyzing trace with hash 2042395630, now seen corresponding path program 23 times [2022-02-10 22:23:05,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:05,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928098779] [2022-02-10 22:23:05,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:05,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:05,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:05,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:05,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928098779] [2022-02-10 22:23:05,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928098779] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:05,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:05,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:05,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640046772] [2022-02-10 22:23:05,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:05,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:05,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:05,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:05,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:05,259 INFO L87 Difference]: Start difference. First operand 9032 states and 24392 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:05,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:05,842 INFO L93 Difference]: Finished difference Result 11034 states and 29731 transitions. [2022-02-10 22:23:05,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:05,843 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:05,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:05,866 INFO L225 Difference]: With dead ends: 11034 [2022-02-10 22:23:05,866 INFO L226 Difference]: Without dead ends: 10548 [2022-02-10 22:23:05,867 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:23:05,867 INFO L934 BasicCegarLoop]: 339 mSDtfsCounter, 230 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:05,867 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 3164 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:05,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2022-02-10 22:23:06,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 9028. [2022-02-10 22:23:06,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7008973080757728) internal successors, (24381), 9027 states have internal predecessors, (24381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:06,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24381 transitions. [2022-02-10 22:23:06,064 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24381 transitions. Word has length 109 [2022-02-10 22:23:06,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:06,064 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24381 transitions. [2022-02-10 22:23:06,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:06,065 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24381 transitions. [2022-02-10 22:23:06,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:06,079 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:06,080 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:06,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-10 22:23:06,080 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:06,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:06,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1551884110, now seen corresponding path program 24 times [2022-02-10 22:23:06,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:06,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677717213] [2022-02-10 22:23:06,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:06,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:06,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:06,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:06,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677717213] [2022-02-10 22:23:06,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677717213] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:06,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:06,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:06,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479821303] [2022-02-10 22:23:06,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:06,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:06,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:06,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:06,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:06,225 INFO L87 Difference]: Start difference. First operand 9028 states and 24381 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:06,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:06,921 INFO L93 Difference]: Finished difference Result 11070 states and 29826 transitions. [2022-02-10 22:23:06,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:23:06,921 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:06,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:06,938 INFO L225 Difference]: With dead ends: 11070 [2022-02-10 22:23:06,939 INFO L226 Difference]: Without dead ends: 10544 [2022-02-10 22:23:06,939 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:23:06,939 INFO L934 BasicCegarLoop]: 348 mSDtfsCounter, 280 mSDsluCounter, 3376 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:06,940 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3671 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:06,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10544 states. [2022-02-10 22:23:07,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10544 to 9024. [2022-02-10 22:23:07,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700875540285936) internal successors, (24370), 9023 states have internal predecessors, (24370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:07,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24370 transitions. [2022-02-10 22:23:07,158 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24370 transitions. Word has length 109 [2022-02-10 22:23:07,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:07,158 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24370 transitions. [2022-02-10 22:23:07,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:07,158 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24370 transitions. [2022-02-10 22:23:07,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:07,170 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:07,170 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:07,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-10 22:23:07,170 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:07,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:07,170 INFO L85 PathProgramCache]: Analyzing trace with hash 599006722, now seen corresponding path program 25 times [2022-02-10 22:23:07,171 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:07,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893022798] [2022-02-10 22:23:07,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:07,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:07,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:07,300 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:07,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893022798] [2022-02-10 22:23:07,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893022798] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:07,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:07,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:07,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949927456] [2022-02-10 22:23:07,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:07,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:07,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:07,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:07,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:07,302 INFO L87 Difference]: Start difference. First operand 9024 states and 24370 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:07,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:07,972 INFO L93 Difference]: Finished difference Result 11158 states and 30040 transitions. [2022-02-10 22:23:07,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 22:23:07,972 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:07,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:07,989 INFO L225 Difference]: With dead ends: 11158 [2022-02-10 22:23:07,989 INFO L226 Difference]: Without dead ends: 10592 [2022-02-10 22:23:07,990 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=684, Invalid=1968, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:23:07,990 INFO L934 BasicCegarLoop]: 348 mSDtfsCounter, 348 mSDsluCounter, 3150 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 3447 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:07,990 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 3447 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:08,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10592 states. [2022-02-10 22:23:08,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10592 to 9020. [2022-02-10 22:23:08,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.700853753187715) internal successors, (24359), 9019 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:08,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24359 transitions. [2022-02-10 22:23:08,129 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24359 transitions. Word has length 109 [2022-02-10 22:23:08,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:08,130 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24359 transitions. [2022-02-10 22:23:08,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:08,130 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24359 transitions. [2022-02-10 22:23:08,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:08,141 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:08,141 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:08,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-10 22:23:08,141 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:08,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:08,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1903548090, now seen corresponding path program 26 times [2022-02-10 22:23:08,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:08,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923512538] [2022-02-10 22:23:08,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:08,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:08,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:08,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:08,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923512538] [2022-02-10 22:23:08,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923512538] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:08,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:08,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:08,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925990705] [2022-02-10 22:23:08,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:08,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:08,286 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:08,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:08,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:08,286 INFO L87 Difference]: Start difference. First operand 9020 states and 24359 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:08,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:08,855 INFO L93 Difference]: Finished difference Result 11132 states and 29992 transitions. [2022-02-10 22:23:08,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:23:08,856 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:08,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:08,872 INFO L225 Difference]: With dead ends: 11132 [2022-02-10 22:23:08,873 INFO L226 Difference]: Without dead ends: 10647 [2022-02-10 22:23:08,873 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:23:08,873 INFO L934 BasicCegarLoop]: 343 mSDtfsCounter, 251 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:08,873 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 3266 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:08,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10647 states. [2022-02-10 22:23:08,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10647 to 9032. [2022-02-10 22:23:08,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7004761377477577) internal successors, (24388), 9031 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:09,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24388 transitions. [2022-02-10 22:23:09,014 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24388 transitions. Word has length 109 [2022-02-10 22:23:09,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:09,014 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24388 transitions. [2022-02-10 22:23:09,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:09,014 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24388 transitions. [2022-02-10 22:23:09,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:09,026 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:09,026 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:09,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-10 22:23:09,026 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:09,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:09,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1221927436, now seen corresponding path program 27 times [2022-02-10 22:23:09,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:09,027 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343119210] [2022-02-10 22:23:09,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:09,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:09,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:09,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343119210] [2022-02-10 22:23:09,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343119210] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:09,146 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:09,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:09,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952402950] [2022-02-10 22:23:09,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:09,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:09,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:09,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:09,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:09,147 INFO L87 Difference]: Start difference. First operand 9032 states and 24388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:09,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:09,640 INFO L93 Difference]: Finished difference Result 11090 states and 29881 transitions. [2022-02-10 22:23:09,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:09,641 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:09,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:09,655 INFO L225 Difference]: With dead ends: 11090 [2022-02-10 22:23:09,655 INFO L226 Difference]: Without dead ends: 10604 [2022-02-10 22:23:09,655 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=373, Invalid=1187, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:23:09,656 INFO L934 BasicCegarLoop]: 344 mSDtfsCounter, 238 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 3621 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:09,656 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 3621 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:09,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10604 states. [2022-02-10 22:23:09,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10604 to 9028. [2022-02-10 22:23:09,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7004541929766255) internal successors, (24377), 9027 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:09,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24377 transitions. [2022-02-10 22:23:09,770 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24377 transitions. Word has length 109 [2022-02-10 22:23:09,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:09,770 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24377 transitions. [2022-02-10 22:23:09,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:09,770 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24377 transitions. [2022-02-10 22:23:09,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:09,780 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:09,780 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:09,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-10 22:23:09,780 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:09,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:09,780 INFO L85 PathProgramCache]: Analyzing trace with hash -521239880, now seen corresponding path program 28 times [2022-02-10 22:23:09,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:09,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63896633] [2022-02-10 22:23:09,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:09,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:09,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:09,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63896633] [2022-02-10 22:23:09,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63896633] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:09,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:09,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:09,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539895813] [2022-02-10 22:23:09,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:09,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:09,919 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:09,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:09,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:09,919 INFO L87 Difference]: Start difference. First operand 9028 states and 24377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:10,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:10,514 INFO L93 Difference]: Finished difference Result 11218 states and 30213 transitions. [2022-02-10 22:23:10,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:23:10,515 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:10,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:10,529 INFO L225 Difference]: With dead ends: 11218 [2022-02-10 22:23:10,529 INFO L226 Difference]: Without dead ends: 10692 [2022-02-10 22:23:10,530 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=1542, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:23:10,530 INFO L934 BasicCegarLoop]: 347 mSDtfsCounter, 311 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 2632 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:10,530 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 2632 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:10,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10692 states. [2022-02-10 22:23:10,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10692 to 9024. [2022-02-10 22:23:10,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700432228748753) internal successors, (24366), 9023 states have internal predecessors, (24366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:10,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24366 transitions. [2022-02-10 22:23:10,646 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24366 transitions. Word has length 109 [2022-02-10 22:23:10,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:10,646 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24366 transitions. [2022-02-10 22:23:10,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:10,646 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24366 transitions. [2022-02-10 22:23:10,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:10,656 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:10,657 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:10,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-10 22:23:10,657 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:10,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:10,657 INFO L85 PathProgramCache]: Analyzing trace with hash 556448148, now seen corresponding path program 29 times [2022-02-10 22:23:10,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:10,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080573719] [2022-02-10 22:23:10,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:10,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:10,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:10,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080573719] [2022-02-10 22:23:10,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080573719] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:10,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:10,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:10,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082939465] [2022-02-10 22:23:10,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:10,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:10,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:10,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:10,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:10,787 INFO L87 Difference]: Start difference. First operand 9024 states and 24366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:11,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:11,351 INFO L93 Difference]: Finished difference Result 11220 states and 30205 transitions. [2022-02-10 22:23:11,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:23:11,352 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:11,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:11,372 INFO L225 Difference]: With dead ends: 11220 [2022-02-10 22:23:11,372 INFO L226 Difference]: Without dead ends: 10692 [2022-02-10 22:23:11,372 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:23:11,373 INFO L934 BasicCegarLoop]: 353 mSDtfsCounter, 302 mSDsluCounter, 3693 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 3973 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:11,373 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 3973 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:11,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10692 states. [2022-02-10 22:23:11,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10692 to 9028. [2022-02-10 22:23:11,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7000110778774786) internal successors, (24373), 9027 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:11,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24373 transitions. [2022-02-10 22:23:11,492 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24373 transitions. Word has length 109 [2022-02-10 22:23:11,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:11,492 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24373 transitions. [2022-02-10 22:23:11,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:11,492 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24373 transitions. [2022-02-10 22:23:11,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:11,502 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:11,502 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:11,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-10 22:23:11,503 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:11,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:11,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1951584194, now seen corresponding path program 30 times [2022-02-10 22:23:11,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:11,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36015915] [2022-02-10 22:23:11,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:11,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:11,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:11,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:11,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36015915] [2022-02-10 22:23:11,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36015915] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:11,640 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:11,640 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:11,640 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45492213] [2022-02-10 22:23:11,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:11,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:11,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:11,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:11,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:11,641 INFO L87 Difference]: Start difference. First operand 9028 states and 24373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:12,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:12,298 INFO L93 Difference]: Finished difference Result 11072 states and 29819 transitions. [2022-02-10 22:23:12,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:12,299 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:12,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:12,320 INFO L225 Difference]: With dead ends: 11072 [2022-02-10 22:23:12,320 INFO L226 Difference]: Without dead ends: 10587 [2022-02-10 22:23:12,320 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:23:12,321 INFO L934 BasicCegarLoop]: 346 mSDtfsCounter, 241 mSDsluCounter, 3590 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:12,321 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 3874 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:12,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10587 states. [2022-02-10 22:23:12,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 9032. [2022-02-10 22:23:12,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.699590300077511) internal successors, (24380), 9031 states have internal predecessors, (24380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:12,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24380 transitions. [2022-02-10 22:23:12,481 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24380 transitions. Word has length 109 [2022-02-10 22:23:12,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:12,481 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24380 transitions. [2022-02-10 22:23:12,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:12,481 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24380 transitions. [2022-02-10 22:23:12,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:12,491 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:12,491 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:12,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-10 22:23:12,492 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:12,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:12,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1269963540, now seen corresponding path program 31 times [2022-02-10 22:23:12,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:12,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820329793] [2022-02-10 22:23:12,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:12,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:12,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:12,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:12,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820329793] [2022-02-10 22:23:12,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820329793] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:12,630 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:12,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:12,630 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636405063] [2022-02-10 22:23:12,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:12,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:12,630 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:12,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:12,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:12,631 INFO L87 Difference]: Start difference. First operand 9032 states and 24380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:13,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:13,240 INFO L93 Difference]: Finished difference Result 10990 states and 29598 transitions. [2022-02-10 22:23:13,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:23:13,241 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:13,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:13,256 INFO L225 Difference]: With dead ends: 10990 [2022-02-10 22:23:13,256 INFO L226 Difference]: Without dead ends: 10492 [2022-02-10 22:23:13,256 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=354, Invalid=1128, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:23:13,256 INFO L934 BasicCegarLoop]: 341 mSDtfsCounter, 223 mSDsluCounter, 3522 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 3810 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:13,257 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 3810 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:13,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10492 states. [2022-02-10 22:23:13,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10492 to 9016. [2022-02-10 22:23:13,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9016 states, 9015 states have (on average 2.700831946755408) internal successors, (24348), 9015 states have internal predecessors, (24348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:13,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9016 states to 9016 states and 24348 transitions. [2022-02-10 22:23:13,380 INFO L78 Accepts]: Start accepts. Automaton has 9016 states and 24348 transitions. Word has length 109 [2022-02-10 22:23:13,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:13,380 INFO L470 AbstractCegarLoop]: Abstraction has 9016 states and 24348 transitions. [2022-02-10 22:23:13,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:13,381 INFO L276 IsEmpty]: Start isEmpty. Operand 9016 states and 24348 transitions. [2022-02-10 22:23:13,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:13,392 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:13,392 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:13,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-10 22:23:13,392 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:13,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:13,392 INFO L85 PathProgramCache]: Analyzing trace with hash -821603778, now seen corresponding path program 32 times [2022-02-10 22:23:13,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:13,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707505207] [2022-02-10 22:23:13,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:13,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:13,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:13,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:13,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707505207] [2022-02-10 22:23:13,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707505207] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:13,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:13,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:13,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288728153] [2022-02-10 22:23:13,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:13,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:13,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:13,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:13,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:13,540 INFO L87 Difference]: Start difference. First operand 9016 states and 24348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:14,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:14,099 INFO L93 Difference]: Finished difference Result 11168 states and 30091 transitions. [2022-02-10 22:23:14,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:23:14,099 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:14,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:14,115 INFO L225 Difference]: With dead ends: 11168 [2022-02-10 22:23:14,115 INFO L226 Difference]: Without dead ends: 10683 [2022-02-10 22:23:14,116 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:23:14,116 INFO L934 BasicCegarLoop]: 342 mSDtfsCounter, 251 mSDsluCounter, 3348 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 3632 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:14,116 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 3632 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:14,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-02-10 22:23:14,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 9032. [2022-02-10 22:23:14,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7004761377477577) internal successors, (24388), 9031 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:14,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24388 transitions. [2022-02-10 22:23:14,349 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24388 transitions. Word has length 109 [2022-02-10 22:23:14,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:14,349 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24388 transitions. [2022-02-10 22:23:14,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:14,349 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24388 transitions. [2022-02-10 22:23:14,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:14,359 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:14,359 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:14,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-02-10 22:23:14,360 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:14,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:14,360 INFO L85 PathProgramCache]: Analyzing trace with hash -139983124, now seen corresponding path program 33 times [2022-02-10 22:23:14,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:14,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509348932] [2022-02-10 22:23:14,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:14,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:14,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:14,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509348932] [2022-02-10 22:23:14,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509348932] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:14,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:14,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:14,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901598256] [2022-02-10 22:23:14,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:14,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:14,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:14,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:14,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:14,491 INFO L87 Difference]: Start difference. First operand 9032 states and 24388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:15,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:15,004 INFO L93 Difference]: Finished difference Result 11126 states and 29980 transitions. [2022-02-10 22:23:15,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:15,005 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:15,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:15,021 INFO L225 Difference]: With dead ends: 11126 [2022-02-10 22:23:15,021 INFO L226 Difference]: Without dead ends: 10640 [2022-02-10 22:23:15,022 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:23:15,022 INFO L934 BasicCegarLoop]: 343 mSDtfsCounter, 236 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 3824 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:15,022 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 3824 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:15,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2022-02-10 22:23:15,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 9028. [2022-02-10 22:23:15,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7004541929766255) internal successors, (24377), 9027 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:15,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24377 transitions. [2022-02-10 22:23:15,146 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24377 transitions. Word has length 109 [2022-02-10 22:23:15,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:15,146 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24377 transitions. [2022-02-10 22:23:15,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:15,146 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24377 transitions. [2022-02-10 22:23:15,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:15,157 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:15,157 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:15,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-02-10 22:23:15,157 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:15,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:15,157 INFO L85 PathProgramCache]: Analyzing trace with hash 560704432, now seen corresponding path program 34 times [2022-02-10 22:23:15,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:15,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753609804] [2022-02-10 22:23:15,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:15,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:15,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:15,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:15,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753609804] [2022-02-10 22:23:15,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753609804] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:15,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:15,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:15,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707792750] [2022-02-10 22:23:15,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:15,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:15,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:15,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:15,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:15,297 INFO L87 Difference]: Start difference. First operand 9028 states and 24377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:15,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:15,892 INFO L93 Difference]: Finished difference Result 11234 states and 30257 transitions. [2022-02-10 22:23:15,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:23:15,892 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:15,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:15,907 INFO L225 Difference]: With dead ends: 11234 [2022-02-10 22:23:15,907 INFO L226 Difference]: Without dead ends: 10708 [2022-02-10 22:23:15,907 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=515, Invalid=1465, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:23:15,907 INFO L934 BasicCegarLoop]: 346 mSDtfsCounter, 306 mSDsluCounter, 2749 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:15,908 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 3052 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:15,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10708 states. [2022-02-10 22:23:16,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10708 to 9024. [2022-02-10 22:23:16,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700432228748753) internal successors, (24366), 9023 states have internal predecessors, (24366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:16,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24366 transitions. [2022-02-10 22:23:16,037 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24366 transitions. Word has length 109 [2022-02-10 22:23:16,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:16,037 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24366 transitions. [2022-02-10 22:23:16,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:16,037 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24366 transitions. [2022-02-10 22:23:16,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:16,048 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:16,048 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:16,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-02-10 22:23:16,048 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:16,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:16,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1638392460, now seen corresponding path program 35 times [2022-02-10 22:23:16,049 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:16,049 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853981511] [2022-02-10 22:23:16,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:16,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:16,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:16,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:16,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853981511] [2022-02-10 22:23:16,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853981511] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:16,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:16,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:16,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788022873] [2022-02-10 22:23:16,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:16,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:16,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:16,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:16,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:16,189 INFO L87 Difference]: Start difference. First operand 9024 states and 24366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:16,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:16,757 INFO L93 Difference]: Finished difference Result 11332 states and 30513 transitions. [2022-02-10 22:23:16,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:23:16,758 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:16,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:16,774 INFO L225 Difference]: With dead ends: 11332 [2022-02-10 22:23:16,775 INFO L226 Difference]: Without dead ends: 10804 [2022-02-10 22:23:16,775 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:23:16,775 INFO L934 BasicCegarLoop]: 355 mSDtfsCounter, 311 mSDsluCounter, 3225 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 3517 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:16,775 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 3517 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:16,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10804 states. [2022-02-10 22:23:16,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10804 to 9028. [2022-02-10 22:23:16,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7000110778774786) internal successors, (24373), 9027 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:16,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24373 transitions. [2022-02-10 22:23:16,905 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24373 transitions. Word has length 109 [2022-02-10 22:23:16,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:16,905 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24373 transitions. [2022-02-10 22:23:16,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:16,905 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24373 transitions. [2022-02-10 22:23:16,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:16,916 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:16,916 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:16,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-02-10 22:23:16,917 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:16,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:16,918 INFO L85 PathProgramCache]: Analyzing trace with hash -869639882, now seen corresponding path program 36 times [2022-02-10 22:23:16,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:16,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539659889] [2022-02-10 22:23:16,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:16,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:17,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:17,048 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:17,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539659889] [2022-02-10 22:23:17,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539659889] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:17,048 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:17,048 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:17,048 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688489009] [2022-02-10 22:23:17,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:17,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:17,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:17,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:17,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:17,049 INFO L87 Difference]: Start difference. First operand 9028 states and 24373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:17,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:17,524 INFO L93 Difference]: Finished difference Result 11168 states and 30083 transitions. [2022-02-10 22:23:17,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:17,525 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:17,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:17,540 INFO L225 Difference]: With dead ends: 11168 [2022-02-10 22:23:17,540 INFO L226 Difference]: Without dead ends: 10683 [2022-02-10 22:23:17,540 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:23:17,541 INFO L934 BasicCegarLoop]: 347 mSDtfsCounter, 249 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3656 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:17,541 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3656 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:17,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-02-10 22:23:17,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 9032. [2022-02-10 22:23:17,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.699590300077511) internal successors, (24380), 9031 states have internal predecessors, (24380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:17,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24380 transitions. [2022-02-10 22:23:17,660 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24380 transitions. Word has length 109 [2022-02-10 22:23:17,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:17,660 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24380 transitions. [2022-02-10 22:23:17,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:17,661 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24380 transitions. [2022-02-10 22:23:17,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:17,671 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:17,671 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:17,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-02-10 22:23:17,671 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:17,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:17,672 INFO L85 PathProgramCache]: Analyzing trace with hash -188019228, now seen corresponding path program 37 times [2022-02-10 22:23:17,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:17,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890585915] [2022-02-10 22:23:17,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:17,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:17,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:17,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:17,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890585915] [2022-02-10 22:23:17,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890585915] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:17,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:17,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:17,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543018849] [2022-02-10 22:23:17,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:17,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:17,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:17,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:17,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:17,805 INFO L87 Difference]: Start difference. First operand 9032 states and 24380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:18,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:18,350 INFO L93 Difference]: Finished difference Result 11102 states and 29906 transitions. [2022-02-10 22:23:18,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:23:18,351 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:18,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:18,365 INFO L225 Difference]: With dead ends: 11102 [2022-02-10 22:23:18,365 INFO L226 Difference]: Without dead ends: 10608 [2022-02-10 22:23:18,365 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:23:18,366 INFO L934 BasicCegarLoop]: 341 mSDtfsCounter, 233 mSDsluCounter, 3525 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3813 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:18,366 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 3813 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:18,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10608 states. [2022-02-10 22:23:18,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10608 to 9020. [2022-02-10 22:23:18,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.7004102450382526) internal successors, (24355), 9019 states have internal predecessors, (24355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:18,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24355 transitions. [2022-02-10 22:23:18,482 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24355 transitions. Word has length 109 [2022-02-10 22:23:18,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:18,482 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24355 transitions. [2022-02-10 22:23:18,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:18,482 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24355 transitions. [2022-02-10 22:23:18,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:18,493 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:18,493 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:18,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-02-10 22:23:18,493 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:18,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:18,493 INFO L85 PathProgramCache]: Analyzing trace with hash 134914624, now seen corresponding path program 38 times [2022-02-10 22:23:18,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:18,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187843026] [2022-02-10 22:23:18,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:18,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:18,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:18,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:18,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187843026] [2022-02-10 22:23:18,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187843026] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:18,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:18,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:18,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523533340] [2022-02-10 22:23:18,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:18,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:18,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:18,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:18,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:18,629 INFO L87 Difference]: Start difference. First operand 9020 states and 24355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:19,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:19,322 INFO L93 Difference]: Finished difference Result 11353 states and 30552 transitions. [2022-02-10 22:23:19,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:23:19,323 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:19,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:19,342 INFO L225 Difference]: With dead ends: 11353 [2022-02-10 22:23:19,343 INFO L226 Difference]: Without dead ends: 10782 [2022-02-10 22:23:19,343 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=639, Invalid=2117, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:23:19,344 INFO L934 BasicCegarLoop]: 362 mSDtfsCounter, 369 mSDsluCounter, 3288 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 3579 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:19,344 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 3579 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:19,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10782 states. [2022-02-10 22:23:19,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10782 to 9024. [2022-02-10 22:23:19,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.6999889172115705) internal successors, (24362), 9023 states have internal predecessors, (24362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:19,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24362 transitions. [2022-02-10 22:23:19,465 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24362 transitions. Word has length 109 [2022-02-10 22:23:19,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:19,466 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24362 transitions. [2022-02-10 22:23:19,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:19,466 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24362 transitions. [2022-02-10 22:23:19,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:19,476 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:19,476 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:19,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-02-10 22:23:19,476 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:19,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:19,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1924477078, now seen corresponding path program 39 times [2022-02-10 22:23:19,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:19,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565008516] [2022-02-10 22:23:19,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:19,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:19,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:19,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:19,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565008516] [2022-02-10 22:23:19,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565008516] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:19,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:19,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:19,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113491873] [2022-02-10 22:23:19,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:19,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:19,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:19,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:19,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:19,615 INFO L87 Difference]: Start difference. First operand 9024 states and 24362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:20,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:20,281 INFO L93 Difference]: Finished difference Result 11236 states and 30245 transitions. [2022-02-10 22:23:20,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:23:20,282 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:20,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:20,296 INFO L225 Difference]: With dead ends: 11236 [2022-02-10 22:23:20,296 INFO L226 Difference]: Without dead ends: 10708 [2022-02-10 22:23:20,297 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=485, Invalid=1677, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:23:20,297 INFO L934 BasicCegarLoop]: 355 mSDtfsCounter, 308 mSDsluCounter, 3220 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:20,297 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 3512 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:20,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10708 states. [2022-02-10 22:23:20,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10708 to 9028. [2022-02-10 22:23:20,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.6995679627783318) internal successors, (24369), 9027 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:20,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24369 transitions. [2022-02-10 22:23:20,411 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24369 transitions. Word has length 109 [2022-02-10 22:23:20,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:20,412 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24369 transitions. [2022-02-10 22:23:20,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:20,412 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24369 transitions. [2022-02-10 22:23:20,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:20,422 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:20,422 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:20,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-02-10 22:23:20,422 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:20,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:20,422 INFO L85 PathProgramCache]: Analyzing trace with hash -583555264, now seen corresponding path program 40 times [2022-02-10 22:23:20,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:20,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35728715] [2022-02-10 22:23:20,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:20,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:20,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:20,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:20,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35728715] [2022-02-10 22:23:20,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35728715] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:20,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:20,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:20,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94507791] [2022-02-10 22:23:20,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:20,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:20,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:20,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:20,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:20,565 INFO L87 Difference]: Start difference. First operand 9028 states and 24369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:21,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:21,155 INFO L93 Difference]: Finished difference Result 11088 states and 29859 transitions. [2022-02-10 22:23:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:21,155 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:21,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:21,170 INFO L225 Difference]: With dead ends: 11088 [2022-02-10 22:23:21,171 INFO L226 Difference]: Without dead ends: 10603 [2022-02-10 22:23:21,171 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:23:21,171 INFO L934 BasicCegarLoop]: 343 mSDtfsCounter, 247 mSDsluCounter, 3041 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 3332 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:21,171 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 3332 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:21,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10603 states. [2022-02-10 22:23:21,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10603 to 9032. [2022-02-10 22:23:21,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.6991473812423874) internal successors, (24376), 9031 states have internal predecessors, (24376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:21,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24376 transitions. [2022-02-10 22:23:21,403 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24376 transitions. Word has length 109 [2022-02-10 22:23:21,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:21,403 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24376 transitions. [2022-02-10 22:23:21,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:21,403 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24376 transitions. [2022-02-10 22:23:21,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:21,413 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:21,413 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:21,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-02-10 22:23:21,413 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:21,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:21,414 INFO L85 PathProgramCache]: Analyzing trace with hash 98065390, now seen corresponding path program 41 times [2022-02-10 22:23:21,414 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:21,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207478480] [2022-02-10 22:23:21,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:21,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:21,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:21,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:21,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207478480] [2022-02-10 22:23:21,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207478480] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:21,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:21,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:21,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246194168] [2022-02-10 22:23:21,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:21,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:21,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:21,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:21,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:21,548 INFO L87 Difference]: Start difference. First operand 9032 states and 24376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:22,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:22,060 INFO L93 Difference]: Finished difference Result 10990 states and 29594 transitions. [2022-02-10 22:23:22,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:23:22,060 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:22,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:22,074 INFO L225 Difference]: With dead ends: 10990 [2022-02-10 22:23:22,075 INFO L226 Difference]: Without dead ends: 10488 [2022-02-10 22:23:22,075 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:23:22,075 INFO L934 BasicCegarLoop]: 337 mSDtfsCounter, 226 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 3361 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:22,075 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 3361 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:22,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10488 states. [2022-02-10 22:23:22,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10488 to 9012. [2022-02-10 22:23:22,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9012 states, 9011 states have (on average 2.700810120963267) internal successors, (24337), 9011 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:22,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9012 states to 9012 states and 24337 transitions. [2022-02-10 22:23:22,189 INFO L78 Accepts]: Start accepts. Automaton has 9012 states and 24337 transitions. Word has length 109 [2022-02-10 22:23:22,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:22,189 INFO L470 AbstractCegarLoop]: Abstraction has 9012 states and 24337 transitions. [2022-02-10 22:23:22,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:22,189 INFO L276 IsEmpty]: Start isEmpty. Operand 9012 states and 24337 transitions. [2022-02-10 22:23:22,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:22,199 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:22,199 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:22,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-02-10 22:23:22,199 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:22,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:22,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1814843604, now seen corresponding path program 42 times [2022-02-10 22:23:22,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:22,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296830818] [2022-02-10 22:23:22,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:22,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:22,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:22,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:22,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296830818] [2022-02-10 22:23:22,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296830818] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:22,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:22,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:22,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046187920] [2022-02-10 22:23:22,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:22,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:22,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:22,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:22,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:22,336 INFO L87 Difference]: Start difference. First operand 9012 states and 24337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:22,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:22,808 INFO L93 Difference]: Finished difference Result 11024 states and 29695 transitions. [2022-02-10 22:23:22,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:23:22,808 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:22,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:22,823 INFO L225 Difference]: With dead ends: 11024 [2022-02-10 22:23:22,823 INFO L226 Difference]: Without dead ends: 10539 [2022-02-10 22:23:22,824 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:23:22,824 INFO L934 BasicCegarLoop]: 341 mSDtfsCounter, 249 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3610 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:22,824 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3610 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:22,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10539 states. [2022-02-10 22:23:22,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10539 to 9032. [2022-02-10 22:23:22,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7004761377477577) internal successors, (24388), 9031 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:22,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24388 transitions. [2022-02-10 22:23:22,941 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24388 transitions. Word has length 109 [2022-02-10 22:23:22,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:22,941 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24388 transitions. [2022-02-10 22:23:22,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:22,941 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24388 transitions. [2022-02-10 22:23:22,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:22,951 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:22,951 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:22,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-02-10 22:23:22,952 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:22,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:22,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1133222950, now seen corresponding path program 43 times [2022-02-10 22:23:22,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:22,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696707145] [2022-02-10 22:23:22,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:22,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:23,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:23,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:23,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696707145] [2022-02-10 22:23:23,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696707145] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:23,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:23,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:23,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203042624] [2022-02-10 22:23:23,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:23,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:23,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:23,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:23,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:23,081 INFO L87 Difference]: Start difference. First operand 9032 states and 24388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:23,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:23,585 INFO L93 Difference]: Finished difference Result 10982 states and 29584 transitions. [2022-02-10 22:23:23,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:23,585 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:23,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:23,599 INFO L225 Difference]: With dead ends: 10982 [2022-02-10 22:23:23,599 INFO L226 Difference]: Without dead ends: 10496 [2022-02-10 22:23:23,600 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=381, Invalid=1179, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:23:23,600 INFO L934 BasicCegarLoop]: 342 mSDtfsCounter, 232 mSDsluCounter, 3517 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3806 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:23,600 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 3806 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:23,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10496 states. [2022-02-10 22:23:23,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10496 to 9028. [2022-02-10 22:23:23,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7004541929766255) internal successors, (24377), 9027 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:23,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24377 transitions. [2022-02-10 22:23:23,715 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24377 transitions. Word has length 109 [2022-02-10 22:23:23,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:23,716 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24377 transitions. [2022-02-10 22:23:23,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:23,716 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24377 transitions. [2022-02-10 22:23:23,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:23,726 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:23,726 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:23,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-02-10 22:23:23,726 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:23,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:23,726 INFO L85 PathProgramCache]: Analyzing trace with hash -432535394, now seen corresponding path program 44 times [2022-02-10 22:23:23,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:23,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385671084] [2022-02-10 22:23:23,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:23,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:23,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:23,853 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:23,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385671084] [2022-02-10 22:23:23,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385671084] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:23,853 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:23,853 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:23,853 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582933505] [2022-02-10 22:23:23,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:23,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:23,853 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:23,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:23,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:23,854 INFO L87 Difference]: Start difference. First operand 9028 states and 24377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:24,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:24,454 INFO L93 Difference]: Finished difference Result 11050 states and 29751 transitions. [2022-02-10 22:23:24,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:23:24,454 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:24,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:24,468 INFO L225 Difference]: With dead ends: 11050 [2022-02-10 22:23:24,468 INFO L226 Difference]: Without dead ends: 10524 [2022-02-10 22:23:24,469 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=503, Invalid=1389, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:23:24,469 INFO L934 BasicCegarLoop]: 345 mSDtfsCounter, 300 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 3543 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:24,469 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 3543 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:24,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10524 states. [2022-02-10 22:23:24,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10524 to 9024. [2022-02-10 22:23:24,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700432228748753) internal successors, (24366), 9023 states have internal predecessors, (24366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:24,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24366 transitions. [2022-02-10 22:23:24,591 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24366 transitions. Word has length 109 [2022-02-10 22:23:24,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:24,591 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24366 transitions. [2022-02-10 22:23:24,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:24,592 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24366 transitions. [2022-02-10 22:23:24,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:24,602 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:24,602 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:24,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-02-10 22:23:24,602 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:24,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:24,602 INFO L85 PathProgramCache]: Analyzing trace with hash 645152634, now seen corresponding path program 45 times [2022-02-10 22:23:24,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:24,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187415865] [2022-02-10 22:23:24,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:24,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:24,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:24,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:24,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187415865] [2022-02-10 22:23:24,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187415865] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:24,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:24,733 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:24,733 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148255819] [2022-02-10 22:23:24,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:24,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:24,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:24,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:24,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:24,734 INFO L87 Difference]: Start difference. First operand 9024 states and 24366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:25,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:25,307 INFO L93 Difference]: Finished difference Result 11180 states and 30095 transitions. [2022-02-10 22:23:25,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:23:25,308 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:25,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:25,323 INFO L225 Difference]: With dead ends: 11180 [2022-02-10 22:23:25,323 INFO L226 Difference]: Without dead ends: 10652 [2022-02-10 22:23:25,324 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:23:25,324 INFO L934 BasicCegarLoop]: 348 mSDtfsCounter, 335 mSDsluCounter, 3414 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 3694 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:25,324 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 3694 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:25,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10652 states. [2022-02-10 22:23:25,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10652 to 9028. [2022-02-10 22:23:25,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7000110778774786) internal successors, (24373), 9027 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:25,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24373 transitions. [2022-02-10 22:23:25,443 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24373 transitions. Word has length 109 [2022-02-10 22:23:25,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:25,443 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24373 transitions. [2022-02-10 22:23:25,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:25,443 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24373 transitions. [2022-02-10 22:23:25,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:25,455 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:25,455 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:25,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-02-10 22:23:25,455 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:25,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:25,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1862879708, now seen corresponding path program 46 times [2022-02-10 22:23:25,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:25,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146183699] [2022-02-10 22:23:25,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:25,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:25,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:25,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:25,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146183699] [2022-02-10 22:23:25,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146183699] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:25,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:25,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:25,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407374963] [2022-02-10 22:23:25,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:25,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:25,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:25,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:25,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:25,592 INFO L87 Difference]: Start difference. First operand 9028 states and 24373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:26,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:26,077 INFO L93 Difference]: Finished difference Result 11016 states and 29665 transitions. [2022-02-10 22:23:26,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:26,077 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:26,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:26,092 INFO L225 Difference]: With dead ends: 11016 [2022-02-10 22:23:26,092 INFO L226 Difference]: Without dead ends: 10531 [2022-02-10 22:23:26,092 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:23:26,092 INFO L934 BasicCegarLoop]: 340 mSDtfsCounter, 266 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 3602 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:26,093 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 3602 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:26,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10531 states. [2022-02-10 22:23:26,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10531 to 9032. [2022-02-10 22:23:26,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.699590300077511) internal successors, (24380), 9031 states have internal predecessors, (24380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:26,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24380 transitions. [2022-02-10 22:23:26,211 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24380 transitions. Word has length 109 [2022-02-10 22:23:26,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:26,211 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24380 transitions. [2022-02-10 22:23:26,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:26,211 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24380 transitions. [2022-02-10 22:23:26,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:26,221 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:26,221 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:26,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-02-10 22:23:26,221 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:26,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:26,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1181259054, now seen corresponding path program 47 times [2022-02-10 22:23:26,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:26,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710776779] [2022-02-10 22:23:26,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:26,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:26,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:26,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:26,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710776779] [2022-02-10 22:23:26,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710776779] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:26,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:26,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:26,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746249850] [2022-02-10 22:23:26,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:26,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:26,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:26,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:26,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:26,339 INFO L87 Difference]: Start difference. First operand 9032 states and 24380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:26,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:26,810 INFO L93 Difference]: Finished difference Result 10950 states and 29488 transitions. [2022-02-10 22:23:26,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:23:26,810 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:26,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:26,825 INFO L225 Difference]: With dead ends: 10950 [2022-02-10 22:23:26,825 INFO L226 Difference]: Without dead ends: 10456 [2022-02-10 22:23:26,825 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:23:26,825 INFO L934 BasicCegarLoop]: 332 mSDtfsCounter, 254 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 3530 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:26,826 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 3530 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:26,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10456 states. [2022-02-10 22:23:26,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10456 to 9020. [2022-02-10 22:23:26,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.7004102450382526) internal successors, (24355), 9019 states have internal predecessors, (24355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:26,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24355 transitions. [2022-02-10 22:23:26,944 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24355 transitions. Word has length 109 [2022-02-10 22:23:26,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:26,944 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24355 transitions. [2022-02-10 22:23:26,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:26,945 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24355 transitions. [2022-02-10 22:23:26,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:26,955 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:26,955 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:26,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-02-10 22:23:26,956 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:26,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:26,956 INFO L85 PathProgramCache]: Analyzing trace with hash -858325202, now seen corresponding path program 48 times [2022-02-10 22:23:26,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:26,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082511016] [2022-02-10 22:23:26,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:26,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:27,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:27,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:27,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082511016] [2022-02-10 22:23:27,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082511016] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:27,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:27,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:27,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773730683] [2022-02-10 22:23:27,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:27,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:27,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:27,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:27,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:27,078 INFO L87 Difference]: Start difference. First operand 9020 states and 24355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:27,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:27,750 INFO L93 Difference]: Finished difference Result 11313 states and 30442 transitions. [2022-02-10 22:23:27,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:23:27,750 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:27,765 INFO L225 Difference]: With dead ends: 11313 [2022-02-10 22:23:27,766 INFO L226 Difference]: Without dead ends: 10742 [2022-02-10 22:23:27,766 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2217, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:23:27,766 INFO L934 BasicCegarLoop]: 356 mSDtfsCounter, 400 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 4019 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:27,766 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 4019 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:27,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10742 states. [2022-02-10 22:23:27,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10742 to 9024. [2022-02-10 22:23:27,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.6999889172115705) internal successors, (24362), 9023 states have internal predecessors, (24362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:27,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24362 transitions. [2022-02-10 22:23:27,885 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24362 transitions. Word has length 109 [2022-02-10 22:23:27,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:27,885 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24362 transitions. [2022-02-10 22:23:27,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:27,885 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24362 transitions. [2022-02-10 22:23:27,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:27,895 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:27,895 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:27,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-02-10 22:23:27,896 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:27,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:27,896 INFO L85 PathProgramCache]: Analyzing trace with hash 931237252, now seen corresponding path program 49 times [2022-02-10 22:23:27,896 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:27,896 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887075315] [2022-02-10 22:23:27,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:27,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:28,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:28,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:28,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887075315] [2022-02-10 22:23:28,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887075315] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:28,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:28,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:28,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742096855] [2022-02-10 22:23:28,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:28,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:28,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:28,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:28,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:28,132 INFO L87 Difference]: Start difference. First operand 9024 states and 24362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:28,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:28,726 INFO L93 Difference]: Finished difference Result 11188 states and 30113 transitions. [2022-02-10 22:23:28,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:23:28,726 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:28,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:28,742 INFO L225 Difference]: With dead ends: 11188 [2022-02-10 22:23:28,742 INFO L226 Difference]: Without dead ends: 10660 [2022-02-10 22:23:28,742 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=474, Invalid=1688, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:23:28,743 INFO L934 BasicCegarLoop]: 348 mSDtfsCounter, 334 mSDsluCounter, 3655 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 3930 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:28,743 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 3930 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:28,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10660 states. [2022-02-10 22:23:28,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10660 to 9028. [2022-02-10 22:23:28,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.6995679627783318) internal successors, (24369), 9027 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:28,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24369 transitions. [2022-02-10 22:23:28,860 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24369 transitions. Word has length 109 [2022-02-10 22:23:28,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:28,860 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24369 transitions. [2022-02-10 22:23:28,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:28,860 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24369 transitions. [2022-02-10 22:23:28,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:28,870 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:28,870 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:28,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-02-10 22:23:28,870 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:28,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:28,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1576795090, now seen corresponding path program 50 times [2022-02-10 22:23:28,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:28,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142022286] [2022-02-10 22:23:28,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:28,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:29,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:29,022 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:29,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142022286] [2022-02-10 22:23:29,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142022286] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:29,022 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:29,022 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:29,022 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654284811] [2022-02-10 22:23:29,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:29,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:29,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:29,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:29,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:29,023 INFO L87 Difference]: Start difference. First operand 9028 states and 24369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:29,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:29,482 INFO L93 Difference]: Finished difference Result 11024 states and 29683 transitions. [2022-02-10 22:23:29,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:29,482 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:29,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:29,496 INFO L225 Difference]: With dead ends: 11024 [2022-02-10 22:23:29,496 INFO L226 Difference]: Without dead ends: 10539 [2022-02-10 22:23:29,497 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:23:29,497 INFO L934 BasicCegarLoop]: 336 mSDtfsCounter, 267 mSDsluCounter, 2708 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:29,497 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 2998 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:29,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10539 states. [2022-02-10 22:23:29,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10539 to 9032. [2022-02-10 22:23:29,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.6991473812423874) internal successors, (24376), 9031 states have internal predecessors, (24376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:29,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24376 transitions. [2022-02-10 22:23:29,611 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24376 transitions. Word has length 109 [2022-02-10 22:23:29,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:29,611 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24376 transitions. [2022-02-10 22:23:29,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:29,611 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24376 transitions. [2022-02-10 22:23:29,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:29,621 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:29,621 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:29,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-02-10 22:23:29,622 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:29,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:29,622 INFO L85 PathProgramCache]: Analyzing trace with hash -895174436, now seen corresponding path program 51 times [2022-02-10 22:23:29,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:29,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130156958] [2022-02-10 22:23:29,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:29,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:29,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:29,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:29,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130156958] [2022-02-10 22:23:29,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130156958] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:29,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:29,740 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:29,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101922366] [2022-02-10 22:23:29,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:29,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:29,741 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:29,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:29,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:29,741 INFO L87 Difference]: Start difference. First operand 9032 states and 24376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:30,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:30,206 INFO L93 Difference]: Finished difference Result 10950 states and 29484 transitions. [2022-02-10 22:23:30,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:23:30,206 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:30,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:30,220 INFO L225 Difference]: With dead ends: 10950 [2022-02-10 22:23:30,221 INFO L226 Difference]: Without dead ends: 10452 [2022-02-10 22:23:30,221 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:23:30,221 INFO L934 BasicCegarLoop]: 328 mSDtfsCounter, 253 mSDsluCounter, 3453 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3728 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:30,221 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 3728 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:30,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10452 states. [2022-02-10 22:23:30,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10452 to 9016. [2022-02-10 22:23:30,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9016 states, 9015 states have (on average 2.7003882418191902) internal successors, (24344), 9015 states have internal predecessors, (24344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:30,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9016 states to 9016 states and 24344 transitions. [2022-02-10 22:23:30,336 INFO L78 Accepts]: Start accepts. Automaton has 9016 states and 24344 transitions. Word has length 109 [2022-02-10 22:23:30,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:30,336 INFO L470 AbstractCegarLoop]: Abstraction has 9016 states and 24344 transitions. [2022-02-10 22:23:30,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:30,337 INFO L276 IsEmpty]: Start isEmpty. Operand 9016 states and 24344 transitions. [2022-02-10 22:23:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:30,347 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:30,347 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:30,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-02-10 22:23:30,347 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:30,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:30,347 INFO L85 PathProgramCache]: Analyzing trace with hash -220682792, now seen corresponding path program 52 times [2022-02-10 22:23:30,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:30,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984395822] [2022-02-10 22:23:30,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:30,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:30,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:30,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:30,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984395822] [2022-02-10 22:23:30,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984395822] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:30,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:30,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:30,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492947911] [2022-02-10 22:23:30,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:30,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:30,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:30,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:30,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:30,491 INFO L87 Difference]: Start difference. First operand 9016 states and 24344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:31,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:31,348 INFO L93 Difference]: Finished difference Result 11293 states and 30362 transitions. [2022-02-10 22:23:31,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:23:31,349 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:31,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:31,363 INFO L225 Difference]: With dead ends: 11293 [2022-02-10 22:23:31,363 INFO L226 Difference]: Without dead ends: 10679 [2022-02-10 22:23:31,364 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1020 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=844, Invalid=2696, Unknown=0, NotChecked=0, Total=3540 [2022-02-10 22:23:31,364 INFO L934 BasicCegarLoop]: 363 mSDtfsCounter, 485 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 3435 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:31,364 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 3435 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:31,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10679 states. [2022-02-10 22:23:31,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10679 to 9020. [2022-02-10 22:23:31,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.6999667368887903) internal successors, (24351), 9019 states have internal predecessors, (24351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:31,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24351 transitions. [2022-02-10 22:23:31,489 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24351 transitions. Word has length 109 [2022-02-10 22:23:31,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:31,489 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24351 transitions. [2022-02-10 22:23:31,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:31,489 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24351 transitions. [2022-02-10 22:23:31,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:31,500 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:31,500 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:31,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-02-10 22:23:31,501 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:31,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:31,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1277978946, now seen corresponding path program 53 times [2022-02-10 22:23:31,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:31,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944872042] [2022-02-10 22:23:31,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:31,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:31,635 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:31,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944872042] [2022-02-10 22:23:31,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944872042] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:31,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:31,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:31,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005085277] [2022-02-10 22:23:31,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:31,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:31,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:31,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:31,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:31,637 INFO L87 Difference]: Start difference. First operand 9020 states and 24351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:32,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:32,352 INFO L93 Difference]: Finished difference Result 11153 states and 29998 transitions. [2022-02-10 22:23:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:23:32,352 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:32,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:32,367 INFO L225 Difference]: With dead ends: 11153 [2022-02-10 22:23:32,367 INFO L226 Difference]: Without dead ends: 10582 [2022-02-10 22:23:32,368 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=652, Invalid=2318, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:23:32,368 INFO L934 BasicCegarLoop]: 351 mSDtfsCounter, 413 mSDsluCounter, 3707 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 3975 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:32,368 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 3975 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:32,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10582 states. [2022-02-10 22:23:32,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10582 to 9024. [2022-02-10 22:23:32,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.6995456056743876) internal successors, (24358), 9023 states have internal predecessors, (24358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:32,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24358 transitions. [2022-02-10 22:23:32,484 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24358 transitions. Word has length 109 [2022-02-10 22:23:32,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:32,485 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24358 transitions. [2022-02-10 22:23:32,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:32,485 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24358 transitions. [2022-02-10 22:23:32,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:32,494 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:32,495 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:32,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-02-10 22:23:32,495 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:32,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:32,495 INFO L85 PathProgramCache]: Analyzing trace with hash 511583508, now seen corresponding path program 54 times [2022-02-10 22:23:32,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:32,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839914278] [2022-02-10 22:23:32,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:32,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:32,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:32,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:32,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839914278] [2022-02-10 22:23:32,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839914278] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:32,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:32,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:32,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578246716] [2022-02-10 22:23:32,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:32,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:32,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:32,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:32,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:32,611 INFO L87 Difference]: Start difference. First operand 9024 states and 24358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:33,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:33,183 INFO L93 Difference]: Finished difference Result 11040 states and 29702 transitions. [2022-02-10 22:23:33,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:23:33,183 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:33,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:33,200 INFO L225 Difference]: With dead ends: 11040 [2022-02-10 22:23:33,200 INFO L226 Difference]: Without dead ends: 10512 [2022-02-10 22:23:33,201 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1698, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:23:33,201 INFO L934 BasicCegarLoop]: 339 mSDtfsCounter, 351 mSDsluCounter, 3595 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 3861 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:33,201 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 3861 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:33,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10512 states. [2022-02-10 22:23:33,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10512 to 9028. [2022-02-10 22:23:33,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.6991248476791845) internal successors, (24365), 9027 states have internal predecessors, (24365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:33,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24365 transitions. [2022-02-10 22:23:33,336 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24365 transitions. Word has length 109 [2022-02-10 22:23:33,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:33,336 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24365 transitions. [2022-02-10 22:23:33,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:33,336 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24365 transitions. [2022-02-10 22:23:33,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:33,346 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:33,346 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:33,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-02-10 22:23:33,346 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:33,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:33,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1996448834, now seen corresponding path program 55 times [2022-02-10 22:23:33,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:33,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25336141] [2022-02-10 22:23:33,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:33,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:33,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:33,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:33,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25336141] [2022-02-10 22:23:33,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25336141] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:33,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:33,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:33,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887318974] [2022-02-10 22:23:33,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:33,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:33,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:33,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:33,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:33,467 INFO L87 Difference]: Start difference. First operand 9028 states and 24365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:33,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:33,910 INFO L93 Difference]: Finished difference Result 10900 states and 29338 transitions. [2022-02-10 22:23:33,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:33,911 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:33,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:33,925 INFO L225 Difference]: With dead ends: 10900 [2022-02-10 22:23:33,925 INFO L226 Difference]: Without dead ends: 10415 [2022-02-10 22:23:33,925 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:23:33,925 INFO L934 BasicCegarLoop]: 327 mSDtfsCounter, 290 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:33,925 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 3166 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:33,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10415 states. [2022-02-10 22:23:34,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10415 to 9032. [2022-02-10 22:23:34,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.698704462407264) internal successors, (24372), 9031 states have internal predecessors, (24372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:34,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24372 transitions. [2022-02-10 22:23:34,079 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24372 transitions. Word has length 109 [2022-02-10 22:23:34,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:34,079 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24372 transitions. [2022-02-10 22:23:34,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:34,079 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24372 transitions. [2022-02-10 22:23:34,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:34,090 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:34,090 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:34,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-02-10 22:23:34,090 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:34,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:34,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1314828180, now seen corresponding path program 56 times [2022-02-10 22:23:34,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:34,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511826782] [2022-02-10 22:23:34,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:34,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:34,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:34,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:34,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511826782] [2022-02-10 22:23:34,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511826782] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:34,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:34,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:34,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103595944] [2022-02-10 22:23:34,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:34,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:34,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:34,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:34,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:34,216 INFO L87 Difference]: Start difference. First operand 9032 states and 24372 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:34,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:34,632 INFO L93 Difference]: Finished difference Result 10750 states and 28930 transitions. [2022-02-10 22:23:34,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:23:34,633 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:34,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:34,647 INFO L225 Difference]: With dead ends: 10750 [2022-02-10 22:23:34,647 INFO L226 Difference]: Without dead ends: 10218 [2022-02-10 22:23:34,647 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:23:34,648 INFO L934 BasicCegarLoop]: 319 mSDtfsCounter, 247 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 3434 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:34,648 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 3434 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:34,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10218 states. [2022-02-10 22:23:34,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10218 to 8982. [2022-02-10 22:23:34,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8982 states, 8981 states have (on average 2.701592250306202) internal successors, (24263), 8981 states have internal predecessors, (24263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:34,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8982 states to 8982 states and 24263 transitions. [2022-02-10 22:23:34,760 INFO L78 Accepts]: Start accepts. Automaton has 8982 states and 24263 transitions. Word has length 109 [2022-02-10 22:23:34,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:34,760 INFO L470 AbstractCegarLoop]: Abstraction has 8982 states and 24263 transitions. [2022-02-10 22:23:34,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:34,761 INFO L276 IsEmpty]: Start isEmpty. Operand 8982 states and 24263 transitions. [2022-02-10 22:23:34,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:34,771 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:34,771 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:34,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-02-10 22:23:34,771 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:34,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:34,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1562377566, now seen corresponding path program 57 times [2022-02-10 22:23:34,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:34,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111852919] [2022-02-10 22:23:34,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:34,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:34,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:34,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:34,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111852919] [2022-02-10 22:23:34,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111852919] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:34,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:34,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:34,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701508734] [2022-02-10 22:23:34,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:34,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:34,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:34,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:34,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:34,898 INFO L87 Difference]: Start difference. First operand 8982 states and 24263 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:35,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:35,415 INFO L93 Difference]: Finished difference Result 11458 states and 30897 transitions. [2022-02-10 22:23:35,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:23:35,415 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:35,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:35,430 INFO L225 Difference]: With dead ends: 11458 [2022-02-10 22:23:35,430 INFO L226 Difference]: Without dead ends: 10973 [2022-02-10 22:23:35,430 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=894, Unknown=0, NotChecked=0, Total=1190 [2022-02-10 22:23:35,431 INFO L934 BasicCegarLoop]: 302 mSDtfsCounter, 216 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2564 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:35,431 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2564 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:35,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10973 states. [2022-02-10 22:23:35,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10973 to 9010. [2022-02-10 22:23:35,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7012987012987013) internal successors, (24336), 9009 states have internal predecessors, (24336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:35,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24336 transitions. [2022-02-10 22:23:35,548 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24336 transitions. Word has length 109 [2022-02-10 22:23:35,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:35,548 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24336 transitions. [2022-02-10 22:23:35,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:35,548 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24336 transitions. [2022-02-10 22:23:35,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:35,559 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:35,559 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:35,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-02-10 22:23:35,559 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:35,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:35,559 INFO L85 PathProgramCache]: Analyzing trace with hash -880756912, now seen corresponding path program 58 times [2022-02-10 22:23:35,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:35,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205858863] [2022-02-10 22:23:35,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:35,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:35,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:35,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:35,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205858863] [2022-02-10 22:23:35,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205858863] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:35,689 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:35,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:35,689 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913157350] [2022-02-10 22:23:35,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:35,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:35,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:35,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:35,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:35,690 INFO L87 Difference]: Start difference. First operand 9010 states and 24336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:36,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:36,182 INFO L93 Difference]: Finished difference Result 11424 states and 30808 transitions. [2022-02-10 22:23:36,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:36,182 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:36,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:36,198 INFO L225 Difference]: With dead ends: 11424 [2022-02-10 22:23:36,198 INFO L226 Difference]: Without dead ends: 10938 [2022-02-10 22:23:36,199 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:23:36,199 INFO L934 BasicCegarLoop]: 304 mSDtfsCounter, 207 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:36,199 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 3090 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:36,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10938 states. [2022-02-10 22:23:36,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10938 to 9006. [2022-02-10 22:23:36,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7012770682953913) internal successors, (24325), 9005 states have internal predecessors, (24325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:36,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24325 transitions. [2022-02-10 22:23:36,322 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24325 transitions. Word has length 109 [2022-02-10 22:23:36,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:36,322 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24325 transitions. [2022-02-10 22:23:36,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:36,323 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24325 transitions. [2022-02-10 22:23:36,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:36,333 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:36,333 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:36,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-02-10 22:23:36,333 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:36,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:36,333 INFO L85 PathProgramCache]: Analyzing trace with hash -180069356, now seen corresponding path program 59 times [2022-02-10 22:23:36,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:36,334 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200508828] [2022-02-10 22:23:36,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:36,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:36,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:36,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:36,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200508828] [2022-02-10 22:23:36,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200508828] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:36,458 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:36,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:36,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176360301] [2022-02-10 22:23:36,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:36,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:36,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:36,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:36,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:36,459 INFO L87 Difference]: Start difference. First operand 9006 states and 24325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:37,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:37,063 INFO L93 Difference]: Finished difference Result 11460 states and 30903 transitions. [2022-02-10 22:23:37,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:23:37,063 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:37,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:37,078 INFO L225 Difference]: With dead ends: 11460 [2022-02-10 22:23:37,078 INFO L226 Difference]: Without dead ends: 10934 [2022-02-10 22:23:37,079 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:23:37,079 INFO L934 BasicCegarLoop]: 313 mSDtfsCounter, 263 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2643 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:37,079 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 2643 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:37,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2022-02-10 22:23:37,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 9002. [2022-02-10 22:23:37,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.701255416064882) internal successors, (24314), 9001 states have internal predecessors, (24314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:37,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24314 transitions. [2022-02-10 22:23:37,196 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24314 transitions. Word has length 109 [2022-02-10 22:23:37,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:37,196 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24314 transitions. [2022-02-10 22:23:37,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:37,196 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24314 transitions. [2022-02-10 22:23:37,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:37,206 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:37,206 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:37,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-02-10 22:23:37,206 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:37,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:37,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1970821476, now seen corresponding path program 60 times [2022-02-10 22:23:37,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:37,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18041158] [2022-02-10 22:23:37,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:37,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:37,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:37,335 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:37,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18041158] [2022-02-10 22:23:37,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18041158] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:37,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:37,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:37,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860698229] [2022-02-10 22:23:37,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:37,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:37,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:37,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:37,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:37,336 INFO L87 Difference]: Start difference. First operand 9002 states and 24314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:38,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:38,045 INFO L93 Difference]: Finished difference Result 11632 states and 31348 transitions. [2022-02-10 22:23:38,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:23:38,045 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:38,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:38,061 INFO L225 Difference]: With dead ends: 11632 [2022-02-10 22:23:38,061 INFO L226 Difference]: Without dead ends: 11066 [2022-02-10 22:23:38,061 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=658, Invalid=1994, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:23:38,061 INFO L934 BasicCegarLoop]: 318 mSDtfsCounter, 324 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:38,061 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 2844 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:38,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11066 states. [2022-02-10 22:23:38,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11066 to 8998. [2022-02-10 22:23:38,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7012337445815273) internal successors, (24303), 8997 states have internal predecessors, (24303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:38,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24303 transitions. [2022-02-10 22:23:38,182 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24303 transitions. Word has length 109 [2022-02-10 22:23:38,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:38,183 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24303 transitions. [2022-02-10 22:23:38,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:38,183 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24303 transitions. [2022-02-10 22:23:38,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:38,193 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:38,193 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:38,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-02-10 22:23:38,193 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:38,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:38,194 INFO L85 PathProgramCache]: Analyzing trace with hash -531733336, now seen corresponding path program 61 times [2022-02-10 22:23:38,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:38,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585950088] [2022-02-10 22:23:38,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:38,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:38,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:38,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:38,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585950088] [2022-02-10 22:23:38,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585950088] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:38,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:38,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:38,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893724970] [2022-02-10 22:23:38,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:38,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:38,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:38,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:38,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:38,326 INFO L87 Difference]: Start difference. First operand 8998 states and 24303 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:38,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:38,810 INFO L93 Difference]: Finished difference Result 11534 states and 31102 transitions. [2022-02-10 22:23:38,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:23:38,811 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:38,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:38,829 INFO L225 Difference]: With dead ends: 11534 [2022-02-10 22:23:38,829 INFO L226 Difference]: Without dead ends: 11049 [2022-02-10 22:23:38,829 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:23:38,829 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 219 mSDsluCounter, 2836 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:38,829 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3092 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:38,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11049 states. [2022-02-10 22:23:38,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11049 to 9010. [2022-02-10 22:23:38,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:38,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-02-10 22:23:38,951 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-02-10 22:23:38,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:38,951 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-02-10 22:23:38,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:38,951 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-02-10 22:23:38,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:38,961 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:38,961 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:38,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-02-10 22:23:38,961 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:38,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:38,962 INFO L85 PathProgramCache]: Analyzing trace with hash 149887318, now seen corresponding path program 62 times [2022-02-10 22:23:38,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:38,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734648977] [2022-02-10 22:23:38,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:38,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:39,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:39,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:39,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734648977] [2022-02-10 22:23:39,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734648977] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:39,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:39,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:39,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212202824] [2022-02-10 22:23:39,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:39,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:39,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:39,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:39,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:39,080 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:39,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:39,573 INFO L93 Difference]: Finished difference Result 11492 states and 30991 transitions. [2022-02-10 22:23:39,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:39,573 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:39,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:39,589 INFO L225 Difference]: With dead ends: 11492 [2022-02-10 22:23:39,589 INFO L226 Difference]: Without dead ends: 11006 [2022-02-10 22:23:39,589 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=338, Invalid=1144, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:23:39,590 INFO L934 BasicCegarLoop]: 306 mSDtfsCounter, 200 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 3425 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:39,590 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 3425 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:39,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11006 states. [2022-02-10 22:23:39,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11006 to 9006. [2022-02-10 22:23:39,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-02-10 22:23:39,711 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-02-10 22:23:39,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:39,711 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-02-10 22:23:39,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:39,711 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-02-10 22:23:39,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:39,721 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:39,721 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:39,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-02-10 22:23:39,722 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:39,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:39,722 INFO L85 PathProgramCache]: Analyzing trace with hash 850574874, now seen corresponding path program 63 times [2022-02-10 22:23:39,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:39,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335609330] [2022-02-10 22:23:39,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:39,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:39,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:39,846 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:39,846 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335609330] [2022-02-10 22:23:39,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335609330] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:39,846 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:39,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:39,846 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103472975] [2022-02-10 22:23:39,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:39,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:39,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:39,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:39,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:39,846 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:40,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:40,540 INFO L93 Difference]: Finished difference Result 11620 states and 31323 transitions. [2022-02-10 22:23:40,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:23:40,540 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:40,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:40,555 INFO L225 Difference]: With dead ends: 11620 [2022-02-10 22:23:40,555 INFO L226 Difference]: Without dead ends: 11094 [2022-02-10 22:23:40,556 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=478, Invalid=1502, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:23:40,556 INFO L934 BasicCegarLoop]: 312 mSDtfsCounter, 269 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:40,556 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 2964 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:40,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-02-10 22:23:40,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 9002. [2022-02-10 22:23:40,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:40,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-02-10 22:23:40,676 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-02-10 22:23:40,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:40,676 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-02-10 22:23:40,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:40,676 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-02-10 22:23:40,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:40,686 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:40,686 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:40,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-02-10 22:23:40,686 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:40,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:40,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1928262902, now seen corresponding path program 64 times [2022-02-10 22:23:40,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:40,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337668860] [2022-02-10 22:23:40,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:40,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:40,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:40,801 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:40,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337668860] [2022-02-10 22:23:40,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337668860] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:40,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:40,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:40,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634892980] [2022-02-10 22:23:40,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:40,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:40,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:40,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:40,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:40,801 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:41,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:41,365 INFO L93 Difference]: Finished difference Result 11622 states and 31315 transitions. [2022-02-10 22:23:41,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:23:41,366 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:41,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:41,382 INFO L225 Difference]: With dead ends: 11622 [2022-02-10 22:23:41,382 INFO L226 Difference]: Without dead ends: 11094 [2022-02-10 22:23:41,382 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1440, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:23:41,382 INFO L934 BasicCegarLoop]: 315 mSDtfsCounter, 271 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:41,382 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 3555 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:41,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-02-10 22:23:41,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 9006. [2022-02-10 22:23:41,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:41,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-02-10 22:23:41,504 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-02-10 22:23:41,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:41,504 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-02-10 22:23:41,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:41,504 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-02-10 22:23:41,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:41,514 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:41,514 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:41,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-02-10 22:23:41,514 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:41,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:41,514 INFO L85 PathProgramCache]: Analyzing trace with hash -579769440, now seen corresponding path program 65 times [2022-02-10 22:23:41,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:41,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894276608] [2022-02-10 22:23:41,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:41,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:41,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:41,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894276608] [2022-02-10 22:23:41,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894276608] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:41,643 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:41,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:41,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319645505] [2022-02-10 22:23:41,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:41,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:41,643 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:41,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:41,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:41,644 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:42,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:42,214 INFO L93 Difference]: Finished difference Result 11474 states and 30929 transitions. [2022-02-10 22:23:42,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:42,214 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:42,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:42,229 INFO L225 Difference]: With dead ends: 11474 [2022-02-10 22:23:42,230 INFO L226 Difference]: Without dead ends: 10989 [2022-02-10 22:23:42,230 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:23:42,230 INFO L934 BasicCegarLoop]: 308 mSDtfsCounter, 220 mSDsluCounter, 2846 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:42,230 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 3105 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:42,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10989 states. [2022-02-10 22:23:42,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10989 to 9010. [2022-02-10 22:23:42,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6999666999667) internal successors, (24324), 9009 states have internal predecessors, (24324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:42,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24324 transitions. [2022-02-10 22:23:42,345 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24324 transitions. Word has length 109 [2022-02-10 22:23:42,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:42,345 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24324 transitions. [2022-02-10 22:23:42,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:42,345 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24324 transitions. [2022-02-10 22:23:42,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:42,357 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:42,357 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:42,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-02-10 22:23:42,357 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:42,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:42,358 INFO L85 PathProgramCache]: Analyzing trace with hash 101851214, now seen corresponding path program 66 times [2022-02-10 22:23:42,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:42,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307259721] [2022-02-10 22:23:42,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:42,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:42,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:42,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:42,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307259721] [2022-02-10 22:23:42,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307259721] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:42,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:42,478 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:42,478 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027868705] [2022-02-10 22:23:42,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:42,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:42,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:42,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:42,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:42,479 INFO L87 Difference]: Start difference. First operand 9010 states and 24324 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:42,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:42,940 INFO L93 Difference]: Finished difference Result 11392 states and 30708 transitions. [2022-02-10 22:23:42,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:23:42,940 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:42,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:42,954 INFO L225 Difference]: With dead ends: 11392 [2022-02-10 22:23:42,955 INFO L226 Difference]: Without dead ends: 10894 [2022-02-10 22:23:42,955 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1086, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:23:42,955 INFO L934 BasicCegarLoop]: 303 mSDtfsCounter, 198 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:42,955 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 3238 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:42,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10894 states. [2022-02-10 22:23:43,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10894 to 8994. [2022-02-10 22:23:43,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.7012120538196376) internal successors, (24292), 8993 states have internal predecessors, (24292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:43,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24292 transitions. [2022-02-10 22:23:43,072 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24292 transitions. Word has length 109 [2022-02-10 22:23:43,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:43,073 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24292 transitions. [2022-02-10 22:23:43,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:43,073 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24292 transitions. [2022-02-10 22:23:43,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:43,083 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:43,083 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:43,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-02-10 22:23:43,083 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:43,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:43,084 INFO L85 PathProgramCache]: Analyzing trace with hash 550210976, now seen corresponding path program 67 times [2022-02-10 22:23:43,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:43,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952172380] [2022-02-10 22:23:43,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:43,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:43,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:43,206 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:43,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952172380] [2022-02-10 22:23:43,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952172380] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:43,206 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:43,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:43,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063337935] [2022-02-10 22:23:43,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:43,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:43,206 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:43,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:43,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:43,206 INFO L87 Difference]: Start difference. First operand 8994 states and 24292 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:43,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:43,681 INFO L93 Difference]: Finished difference Result 11410 states and 30761 transitions. [2022-02-10 22:23:43,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:23:43,682 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:43,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:43,698 INFO L225 Difference]: With dead ends: 11410 [2022-02-10 22:23:43,699 INFO L226 Difference]: Without dead ends: 10925 [2022-02-10 22:23:43,699 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=953, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:23:43,699 INFO L934 BasicCegarLoop]: 304 mSDtfsCounter, 208 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:43,699 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 3003 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:43,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10925 states. [2022-02-10 22:23:43,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10925 to 9010. [2022-02-10 22:23:43,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:43,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-02-10 22:23:43,815 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-02-10 22:23:43,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:43,815 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-02-10 22:23:43,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:43,815 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-02-10 22:23:43,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:43,825 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:43,825 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:43,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-02-10 22:23:43,825 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:43,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:43,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1231831630, now seen corresponding path program 68 times [2022-02-10 22:23:43,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:43,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31990367] [2022-02-10 22:23:43,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:43,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:43,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:43,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:43,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31990367] [2022-02-10 22:23:43,959 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31990367] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:43,960 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:43,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:43,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081484569] [2022-02-10 22:23:43,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:43,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:43,960 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:43,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:43,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:43,960 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:44,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:44,561 INFO L93 Difference]: Finished difference Result 11368 states and 30650 transitions. [2022-02-10 22:23:44,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:44,561 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:44,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:44,576 INFO L225 Difference]: With dead ends: 11368 [2022-02-10 22:23:44,576 INFO L226 Difference]: Without dead ends: 10882 [2022-02-10 22:23:44,577 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=343, Invalid=1139, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:23:44,577 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 196 mSDsluCounter, 3158 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 3416 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:44,577 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 3416 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:44,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10882 states. [2022-02-10 22:23:44,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10882 to 9006. [2022-02-10 22:23:44,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:44,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-02-10 22:23:44,693 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-02-10 22:23:44,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:44,693 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-02-10 22:23:44,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:44,693 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-02-10 22:23:44,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:44,703 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:44,703 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:44,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-02-10 22:23:44,703 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:44,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:44,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1932519186, now seen corresponding path program 69 times [2022-02-10 22:23:44,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:44,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126828960] [2022-02-10 22:23:44,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:44,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:44,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:44,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:44,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126828960] [2022-02-10 22:23:44,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126828960] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:44,821 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:44,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:44,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767591691] [2022-02-10 22:23:44,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:44,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:44,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:44,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:44,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:44,822 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:45,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:45,397 INFO L93 Difference]: Finished difference Result 11496 states and 30982 transitions. [2022-02-10 22:23:45,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:23:45,397 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:45,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:45,412 INFO L225 Difference]: With dead ends: 11496 [2022-02-10 22:23:45,412 INFO L226 Difference]: Without dead ends: 10970 [2022-02-10 22:23:45,412 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:23:45,413 INFO L934 BasicCegarLoop]: 310 mSDtfsCounter, 265 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:45,413 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 2788 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:45,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10970 states. [2022-02-10 22:23:45,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10970 to 9002. [2022-02-10 22:23:45,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:45,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-02-10 22:23:45,529 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-02-10 22:23:45,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:45,530 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-02-10 22:23:45,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:45,530 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-02-10 22:23:45,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:45,540 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:45,540 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:45,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-02-10 22:23:45,541 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:45,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:45,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1284760082, now seen corresponding path program 70 times [2022-02-10 22:23:45,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:45,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802880559] [2022-02-10 22:23:45,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:45,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:45,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:45,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:45,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802880559] [2022-02-10 22:23:45,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802880559] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:45,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:45,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:45,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576599156] [2022-02-10 22:23:45,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:45,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:45,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:45,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:45,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:45,666 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:46,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:46,269 INFO L93 Difference]: Finished difference Result 11578 states and 31194 transitions. [2022-02-10 22:23:46,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:23:46,269 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:46,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:46,284 INFO L225 Difference]: With dead ends: 11578 [2022-02-10 22:23:46,284 INFO L226 Difference]: Without dead ends: 11050 [2022-02-10 22:23:46,285 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=460, Invalid=1432, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:23:46,285 INFO L934 BasicCegarLoop]: 316 mSDtfsCounter, 277 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 2918 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:46,285 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 2918 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:46,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11050 states. [2022-02-10 22:23:46,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11050 to 9006. [2022-02-10 22:23:46,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:46,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-02-10 22:23:46,405 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-02-10 22:23:46,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:46,405 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-02-10 22:23:46,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:46,405 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-02-10 22:23:46,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:46,415 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:46,415 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:46,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-02-10 22:23:46,415 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:46,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:46,415 INFO L85 PathProgramCache]: Analyzing trace with hash 502174872, now seen corresponding path program 71 times [2022-02-10 22:23:46,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:46,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293383605] [2022-02-10 22:23:46,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:46,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:46,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:46,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293383605] [2022-02-10 22:23:46,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293383605] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:46,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:46,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:46,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261211830] [2022-02-10 22:23:46,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:46,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:46,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:46,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:46,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:46,538 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:47,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:47,030 INFO L93 Difference]: Finished difference Result 11414 states and 30764 transitions. [2022-02-10 22:23:47,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:47,031 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:47,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:47,047 INFO L225 Difference]: With dead ends: 11414 [2022-02-10 22:23:47,047 INFO L226 Difference]: Without dead ends: 10929 [2022-02-10 22:23:47,047 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:23:47,048 INFO L934 BasicCegarLoop]: 308 mSDtfsCounter, 216 mSDsluCounter, 2845 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:47,048 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 3104 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:47,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10929 states. [2022-02-10 22:23:47,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10929 to 9010. [2022-02-10 22:23:47,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6999666999667) internal successors, (24324), 9009 states have internal predecessors, (24324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:47,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24324 transitions. [2022-02-10 22:23:47,172 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24324 transitions. Word has length 109 [2022-02-10 22:23:47,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:47,172 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24324 transitions. [2022-02-10 22:23:47,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:47,172 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24324 transitions. [2022-02-10 22:23:47,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:47,183 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:47,183 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:47,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-02-10 22:23:47,183 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:47,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:47,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1183795526, now seen corresponding path program 72 times [2022-02-10 22:23:47,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:47,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113415233] [2022-02-10 22:23:47,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:47,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:47,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:47,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:47,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113415233] [2022-02-10 22:23:47,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113415233] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:47,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:47,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:47,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189627138] [2022-02-10 22:23:47,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:47,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:47,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:47,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:47,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:47,298 INFO L87 Difference]: Start difference. First operand 9010 states and 24324 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:47,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:47,759 INFO L93 Difference]: Finished difference Result 11348 states and 30587 transitions. [2022-02-10 22:23:47,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:23:47,760 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:47,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:47,774 INFO L225 Difference]: With dead ends: 11348 [2022-02-10 22:23:47,774 INFO L226 Difference]: Without dead ends: 10854 [2022-02-10 22:23:47,775 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1081, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:23:47,775 INFO L934 BasicCegarLoop]: 303 mSDtfsCounter, 203 mSDsluCounter, 2815 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 3077 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:47,775 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 3077 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:47,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2022-02-10 22:23:47,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 8998. [2022-02-10 22:23:47,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7007891519395355) internal successors, (24299), 8997 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:47,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24299 transitions. [2022-02-10 22:23:47,889 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24299 transitions. Word has length 109 [2022-02-10 22:23:47,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:47,889 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24299 transitions. [2022-02-10 22:23:47,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:47,890 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24299 transitions. [2022-02-10 22:23:47,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:47,901 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:47,901 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:47,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-02-10 22:23:47,901 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:47,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:47,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1506729378, now seen corresponding path program 73 times [2022-02-10 22:23:47,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:47,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613475620] [2022-02-10 22:23:47,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:47,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:47,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:48,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:48,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:48,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613475620] [2022-02-10 22:23:48,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613475620] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:48,019 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:48,019 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:48,019 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451582448] [2022-02-10 22:23:48,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:48,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:48,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:48,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:48,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:48,020 INFO L87 Difference]: Start difference. First operand 8998 states and 24299 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:48,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:48,739 INFO L93 Difference]: Finished difference Result 11491 states and 30936 transitions. [2022-02-10 22:23:48,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-10 22:23:48,740 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:48,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:48,753 INFO L225 Difference]: With dead ends: 11491 [2022-02-10 22:23:48,754 INFO L226 Difference]: Without dead ends: 10920 [2022-02-10 22:23:48,754 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=614, Invalid=1936, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 22:23:48,754 INFO L934 BasicCegarLoop]: 323 mSDtfsCounter, 323 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 3451 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:48,754 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 3451 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:48,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10920 states. [2022-02-10 22:23:48,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10920 to 9002. [2022-02-10 22:23:48,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:48,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-02-10 22:23:48,865 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-02-10 22:23:48,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:48,865 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-02-10 22:23:48,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:48,865 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-02-10 22:23:48,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:48,875 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:48,875 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:48,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-02-10 22:23:48,875 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:48,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:48,876 INFO L85 PathProgramCache]: Analyzing trace with hash -998675464, now seen corresponding path program 74 times [2022-02-10 22:23:48,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:48,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982520848] [2022-02-10 22:23:48,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:48,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:48,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:48,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:48,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982520848] [2022-02-10 22:23:48,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982520848] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:48,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:48,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:48,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227654787] [2022-02-10 22:23:48,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:48,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:48,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:48,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:48,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:48,989 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:49,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:49,578 INFO L93 Difference]: Finished difference Result 11478 states and 30915 transitions. [2022-02-10 22:23:49,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:23:49,578 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:49,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:49,594 INFO L225 Difference]: With dead ends: 11478 [2022-02-10 22:23:49,594 INFO L226 Difference]: Without dead ends: 10950 [2022-02-10 22:23:49,594 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=475, Invalid=1595, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:23:49,594 INFO L934 BasicCegarLoop]: 317 mSDtfsCounter, 271 mSDsluCounter, 3134 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:49,594 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 3388 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:49,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10950 states. [2022-02-10 22:23:49,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10950 to 9006. [2022-02-10 22:23:49,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:49,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-02-10 22:23:49,720 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-02-10 22:23:49,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:49,720 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-02-10 22:23:49,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:49,720 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-02-10 22:23:49,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:49,730 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:49,730 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:49,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-02-10 22:23:49,730 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:49,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:49,731 INFO L85 PathProgramCache]: Analyzing trace with hash 788259490, now seen corresponding path program 75 times [2022-02-10 22:23:49,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:49,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283069009] [2022-02-10 22:23:49,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:49,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:49,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:49,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:49,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283069009] [2022-02-10 22:23:49,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283069009] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:49,845 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:49,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:49,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286983420] [2022-02-10 22:23:49,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:49,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:49,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:49,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:49,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:49,846 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:50,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:50,315 INFO L93 Difference]: Finished difference Result 11314 states and 30485 transitions. [2022-02-10 22:23:50,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:50,315 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:50,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:50,330 INFO L225 Difference]: With dead ends: 11314 [2022-02-10 22:23:50,330 INFO L226 Difference]: Without dead ends: 10829 [2022-02-10 22:23:50,330 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:23:50,330 INFO L934 BasicCegarLoop]: 309 mSDtfsCounter, 208 mSDsluCounter, 2864 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:50,330 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 3124 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:50,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10829 states. [2022-02-10 22:23:50,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10829 to 9010. [2022-02-10 22:23:50,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:50,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-02-10 22:23:50,453 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-02-10 22:23:50,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:50,453 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-02-10 22:23:50,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:50,453 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-02-10 22:23:50,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:50,463 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:50,463 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:50,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-02-10 22:23:50,463 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:50,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:50,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1469880144, now seen corresponding path program 76 times [2022-02-10 22:23:50,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:50,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965843677] [2022-02-10 22:23:50,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:50,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:50,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:50,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:50,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965843677] [2022-02-10 22:23:50,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965843677] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:50,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:50,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:50,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571580410] [2022-02-10 22:23:50,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:50,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:50,578 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:50,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:50,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:50,578 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:51,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:51,022 INFO L93 Difference]: Finished difference Result 11248 states and 30308 transitions. [2022-02-10 22:23:51,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:23:51,023 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:51,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:51,039 INFO L225 Difference]: With dead ends: 11248 [2022-02-10 22:23:51,039 INFO L226 Difference]: Without dead ends: 10746 [2022-02-10 22:23:51,040 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:23:51,040 INFO L934 BasicCegarLoop]: 303 mSDtfsCounter, 196 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 3091 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:51,040 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 3091 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:51,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10746 states. [2022-02-10 22:23:51,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10746 to 8990. [2022-02-10 22:23:51,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8990 states, 8989 states have (on average 2.7011903437534763) internal successors, (24281), 8989 states have internal predecessors, (24281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:51,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8990 states to 8990 states and 24281 transitions. [2022-02-10 22:23:51,160 INFO L78 Accepts]: Start accepts. Automaton has 8990 states and 24281 transitions. Word has length 109 [2022-02-10 22:23:51,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:51,160 INFO L470 AbstractCegarLoop]: Abstraction has 8990 states and 24281 transitions. [2022-02-10 22:23:51,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:51,160 INFO L276 IsEmpty]: Start isEmpty. Operand 8990 states and 24281 transitions. [2022-02-10 22:23:51,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:51,170 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:51,170 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:51,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-02-10 22:23:51,170 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:51,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:51,170 INFO L85 PathProgramCache]: Analyzing trace with hash 457042722, now seen corresponding path program 77 times [2022-02-10 22:23:51,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:51,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747567699] [2022-02-10 22:23:51,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:51,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:51,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:51,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747567699] [2022-02-10 22:23:51,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747567699] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:51,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:51,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:51,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384875604] [2022-02-10 22:23:51,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:51,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:51,299 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:51,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:51,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:51,300 INFO L87 Difference]: Start difference. First operand 8990 states and 24281 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:51,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:51,725 INFO L93 Difference]: Finished difference Result 11318 states and 30508 transitions. [2022-02-10 22:23:51,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:23:51,725 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:51,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:51,742 INFO L225 Difference]: With dead ends: 11318 [2022-02-10 22:23:51,742 INFO L226 Difference]: Without dead ends: 10833 [2022-02-10 22:23:51,742 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=888, Unknown=0, NotChecked=0, Total=1190 [2022-02-10 22:23:51,742 INFO L934 BasicCegarLoop]: 302 mSDtfsCounter, 213 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:51,742 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2398 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:51,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10833 states. [2022-02-10 22:23:51,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10833 to 9010. [2022-02-10 22:23:51,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:51,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-02-10 22:23:51,876 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-02-10 22:23:51,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:51,876 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-02-10 22:23:51,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:51,876 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-02-10 22:23:51,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:51,886 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:51,886 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:51,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-02-10 22:23:51,887 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:51,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:51,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1138663376, now seen corresponding path program 78 times [2022-02-10 22:23:51,887 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:51,887 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203702526] [2022-02-10 22:23:51,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:51,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:52,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:52,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:52,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203702526] [2022-02-10 22:23:52,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203702526] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:52,007 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:52,007 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:52,007 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829542477] [2022-02-10 22:23:52,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:52,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:52,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:52,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:52,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:52,008 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:52,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:52,475 INFO L93 Difference]: Finished difference Result 11284 states and 30419 transitions. [2022-02-10 22:23:52,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:52,476 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:52,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:52,491 INFO L225 Difference]: With dead ends: 11284 [2022-02-10 22:23:52,491 INFO L226 Difference]: Without dead ends: 10798 [2022-02-10 22:23:52,492 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1153, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:23:52,492 INFO L934 BasicCegarLoop]: 304 mSDtfsCounter, 198 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:52,492 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 3097 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:52,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10798 states. [2022-02-10 22:23:52,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10798 to 9006. [2022-02-10 22:23:52,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:52,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-02-10 22:23:52,614 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-02-10 22:23:52,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:52,614 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-02-10 22:23:52,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:52,614 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-02-10 22:23:52,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:52,624 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:52,624 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:52,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-02-10 22:23:52,625 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:52,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:52,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1839350932, now seen corresponding path program 79 times [2022-02-10 22:23:52,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:52,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153565631] [2022-02-10 22:23:52,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:52,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:52,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:52,747 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:52,747 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153565631] [2022-02-10 22:23:52,747 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153565631] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:52,747 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:52,747 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:52,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319983094] [2022-02-10 22:23:52,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:52,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:52,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:52,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:52,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:52,750 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:53,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:53,369 INFO L93 Difference]: Finished difference Result 11320 states and 30514 transitions. [2022-02-10 22:23:53,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:23:53,369 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:53,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:53,385 INFO L225 Difference]: With dead ends: 11320 [2022-02-10 22:23:53,385 INFO L226 Difference]: Without dead ends: 10794 [2022-02-10 22:23:53,385 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:23:53,386 INFO L934 BasicCegarLoop]: 313 mSDtfsCounter, 250 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 3192 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:53,386 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 3192 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:53,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10794 states. [2022-02-10 22:23:53,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10794 to 9002. [2022-02-10 22:23:53,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:53,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-02-10 22:23:53,507 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-02-10 22:23:53,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:53,507 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-02-10 22:23:53,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:53,508 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-02-10 22:23:53,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:53,518 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:53,518 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:53,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-02-10 22:23:53,518 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:53,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:53,518 INFO L85 PathProgramCache]: Analyzing trace with hash -304725532, now seen corresponding path program 80 times [2022-02-10 22:23:53,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:53,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568710145] [2022-02-10 22:23:53,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:53,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:53,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:53,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:53,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568710145] [2022-02-10 22:23:53,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568710145] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:53,645 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:53,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:53,645 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128397810] [2022-02-10 22:23:53,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:53,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:53,645 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:53,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:53,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:53,646 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:54,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:54,333 INFO L93 Difference]: Finished difference Result 11548 states and 31113 transitions. [2022-02-10 22:23:54,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:23:54,333 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:54,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:54,348 INFO L225 Difference]: With dead ends: 11548 [2022-02-10 22:23:54,349 INFO L226 Difference]: Without dead ends: 10982 [2022-02-10 22:23:54,349 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=668, Invalid=2194, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:23:54,349 INFO L934 BasicCegarLoop]: 319 mSDtfsCounter, 320 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:54,349 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 3574 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:54,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10982 states. [2022-02-10 22:23:54,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10982 to 8998. [2022-02-10 22:23:54,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7007891519395355) internal successors, (24299), 8997 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:54,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24299 transitions. [2022-02-10 22:23:54,472 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24299 transitions. Word has length 109 [2022-02-10 22:23:54,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:54,472 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24299 transitions. [2022-02-10 22:23:54,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:54,473 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24299 transitions. [2022-02-10 22:23:54,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:54,483 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:54,483 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:54,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-02-10 22:23:54,483 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:54,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:54,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1487686952, now seen corresponding path program 81 times [2022-02-10 22:23:54,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:54,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296097414] [2022-02-10 22:23:54,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:54,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:54,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:54,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:54,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296097414] [2022-02-10 22:23:54,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296097414] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:54,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:54,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:54,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835324815] [2022-02-10 22:23:54,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:54,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:54,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:54,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:54,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:54,615 INFO L87 Difference]: Start difference. First operand 8998 states and 24299 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:55,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:55,087 INFO L93 Difference]: Finished difference Result 11294 states and 30438 transitions. [2022-02-10 22:23:55,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:23:55,088 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:55,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:55,104 INFO L225 Difference]: With dead ends: 11294 [2022-02-10 22:23:55,104 INFO L226 Difference]: Without dead ends: 10809 [2022-02-10 22:23:55,105 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=942, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:23:55,105 INFO L934 BasicCegarLoop]: 304 mSDtfsCounter, 205 mSDsluCounter, 2574 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:55,105 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 2834 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:55,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2022-02-10 22:23:55,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 9010. [2022-02-10 22:23:55,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:55,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-02-10 22:23:55,305 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-02-10 22:23:55,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:55,305 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-02-10 22:23:55,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:55,305 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-02-10 22:23:55,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:55,315 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:55,315 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:55,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-02-10 22:23:55,316 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:55,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:55,316 INFO L85 PathProgramCache]: Analyzing trace with hash -2125659690, now seen corresponding path program 82 times [2022-02-10 22:23:55,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:55,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369695113] [2022-02-10 22:23:55,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:55,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:55,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:55,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:55,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369695113] [2022-02-10 22:23:55,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369695113] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:55,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:55,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:55,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235638653] [2022-02-10 22:23:55,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:55,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:55,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:55,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:55,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:55,454 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:55,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:55,940 INFO L93 Difference]: Finished difference Result 11252 states and 30327 transitions. [2022-02-10 22:23:55,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:55,940 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:55,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:55,956 INFO L225 Difference]: With dead ends: 11252 [2022-02-10 22:23:55,956 INFO L226 Difference]: Without dead ends: 10766 [2022-02-10 22:23:55,957 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:23:55,957 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 197 mSDsluCounter, 2995 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 3256 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:55,957 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 3256 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:55,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2022-02-10 22:23:56,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 9006. [2022-02-10 22:23:56,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:56,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-02-10 22:23:56,075 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-02-10 22:23:56,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:56,076 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-02-10 22:23:56,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:56,076 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-02-10 22:23:56,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:56,086 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:56,086 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:56,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-02-10 22:23:56,086 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:56,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:56,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1424972134, now seen corresponding path program 83 times [2022-02-10 22:23:56,087 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:56,087 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495433335] [2022-02-10 22:23:56,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:56,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:56,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:56,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:56,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495433335] [2022-02-10 22:23:56,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495433335] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:56,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:56,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:56,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097039586] [2022-02-10 22:23:56,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:56,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:56,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:56,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:56,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:56,221 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:56,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:56,815 INFO L93 Difference]: Finished difference Result 11420 states and 30769 transitions. [2022-02-10 22:23:56,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:23:56,816 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:56,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:56,830 INFO L225 Difference]: With dead ends: 11420 [2022-02-10 22:23:56,831 INFO L226 Difference]: Without dead ends: 10894 [2022-02-10 22:23:56,831 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=469, Invalid=1511, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:23:56,831 INFO L934 BasicCegarLoop]: 311 mSDtfsCounter, 263 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 3068 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:56,831 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 3068 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:56,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10894 states. [2022-02-10 22:23:56,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10894 to 9002. [2022-02-10 22:23:56,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:56,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-02-10 22:23:56,951 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-02-10 22:23:56,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:56,951 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-02-10 22:23:56,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:56,951 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-02-10 22:23:56,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:56,962 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:56,962 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:56,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-02-10 22:23:56,962 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:56,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:56,962 INFO L85 PathProgramCache]: Analyzing trace with hash -347284106, now seen corresponding path program 84 times [2022-02-10 22:23:56,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:56,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093036505] [2022-02-10 22:23:56,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:56,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:57,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:57,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:57,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093036505] [2022-02-10 22:23:57,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093036505] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:57,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:57,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:57,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809791898] [2022-02-10 22:23:57,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:57,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:57,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:57,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:57,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:57,078 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:57,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:57,621 INFO L93 Difference]: Finished difference Result 11338 states and 30530 transitions. [2022-02-10 22:23:57,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:23:57,621 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:57,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:57,635 INFO L225 Difference]: With dead ends: 11338 [2022-02-10 22:23:57,636 INFO L226 Difference]: Without dead ends: 10810 [2022-02-10 22:23:57,636 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1363, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 22:23:57,636 INFO L934 BasicCegarLoop]: 313 mSDtfsCounter, 262 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 3549 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:57,636 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 3549 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:57,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10810 states. [2022-02-10 22:23:57,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10810 to 9006. [2022-02-10 22:23:57,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:57,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-02-10 22:23:57,756 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-02-10 22:23:57,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:57,756 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-02-10 22:23:57,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:57,757 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-02-10 22:23:57,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:57,766 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:57,767 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:57,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-02-10 22:23:57,767 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:57,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:57,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1439650848, now seen corresponding path program 85 times [2022-02-10 22:23:57,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:57,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567722234] [2022-02-10 22:23:57,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:57,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:57,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:57,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:57,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567722234] [2022-02-10 22:23:57,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567722234] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:57,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:57,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:57,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417266333] [2022-02-10 22:23:57,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:57,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:57,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:57,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:57,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:57,901 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:58,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:58,392 INFO L93 Difference]: Finished difference Result 11238 states and 30276 transitions. [2022-02-10 22:23:58,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:58,393 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:58,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:58,407 INFO L225 Difference]: With dead ends: 11238 [2022-02-10 22:23:58,408 INFO L226 Difference]: Without dead ends: 10753 [2022-02-10 22:23:58,408 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=336, Invalid=996, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:23:58,408 INFO L934 BasicCegarLoop]: 307 mSDtfsCounter, 204 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:58,408 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 3114 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:23:58,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10753 states. [2022-02-10 22:23:58,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10753 to 9010. [2022-02-10 22:23:58,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:58,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-02-10 22:23:58,532 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-02-10 22:23:58,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:58,532 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-02-10 22:23:58,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:58,532 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-02-10 22:23:58,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:58,543 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:58,543 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:58,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-02-10 22:23:58,543 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:58,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:58,544 INFO L85 PathProgramCache]: Analyzing trace with hash 2121271502, now seen corresponding path program 86 times [2022-02-10 22:23:58,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:58,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204636573] [2022-02-10 22:23:58,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:58,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:58,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:58,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:58,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204636573] [2022-02-10 22:23:58,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204636573] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:58,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:58,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:58,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715004740] [2022-02-10 22:23:58,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:58,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:58,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:58,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:58,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:58,662 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:59,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:59,115 INFO L93 Difference]: Finished difference Result 11188 states and 30143 transitions. [2022-02-10 22:23:59,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:23:59,116 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:59,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:59,131 INFO L225 Difference]: With dead ends: 11188 [2022-02-10 22:23:59,132 INFO L226 Difference]: Without dead ends: 10690 [2022-02-10 22:23:59,132 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:23:59,132 INFO L934 BasicCegarLoop]: 306 mSDtfsCounter, 192 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:59,132 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 3104 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:59,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10690 states. [2022-02-10 22:23:59,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10690 to 8994. [2022-02-10 22:23:59,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.70076726342711) internal successors, (24288), 8993 states have internal predecessors, (24288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:59,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24288 transitions. [2022-02-10 22:23:59,257 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24288 transitions. Word has length 109 [2022-02-10 22:23:59,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:59,257 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24288 transitions. [2022-02-10 22:23:59,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:59,257 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24288 transitions. [2022-02-10 22:23:59,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:59,267 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:59,267 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:59,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-02-10 22:23:59,267 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:59,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:59,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1935686880, now seen corresponding path program 87 times [2022-02-10 22:23:59,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:59,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786073292] [2022-02-10 22:23:59,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:59,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:59,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:59,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:59,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786073292] [2022-02-10 22:23:59,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786073292] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:59,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:59,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:23:59,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391387735] [2022-02-10 22:23:59,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:59,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:23:59,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:59,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:23:59,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:23:59,389 INFO L87 Difference]: Start difference. First operand 8994 states and 24288 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:59,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:59,807 INFO L93 Difference]: Finished difference Result 11130 states and 29987 transitions. [2022-02-10 22:23:59,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:23:59,807 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:23:59,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:59,821 INFO L225 Difference]: With dead ends: 11130 [2022-02-10 22:23:59,821 INFO L226 Difference]: Without dead ends: 10645 [2022-02-10 22:23:59,821 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=289, Invalid=833, Unknown=0, NotChecked=0, Total=1122 [2022-02-10 22:23:59,821 INFO L934 BasicCegarLoop]: 300 mSDtfsCounter, 201 mSDsluCounter, 2313 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:59,821 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 2574 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:59,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10645 states. [2022-02-10 22:23:59,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10645 to 9010. [2022-02-10 22:23:59,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:59,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-02-10 22:23:59,936 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-02-10 22:23:59,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:59,937 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-02-10 22:23:59,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:59,937 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-02-10 22:23:59,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:23:59,946 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:59,947 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:59,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-02-10 22:23:59,947 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:59,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:59,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1677659762, now seen corresponding path program 88 times [2022-02-10 22:23:59,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:59,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297044420] [2022-02-10 22:23:59,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:59,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:00,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:00,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297044420] [2022-02-10 22:24:00,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297044420] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:00,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:00,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:00,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584189367] [2022-02-10 22:24:00,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:00,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:00,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:00,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:00,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:00,059 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:00,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:00,538 INFO L93 Difference]: Finished difference Result 11100 states and 29909 transitions. [2022-02-10 22:24:00,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:00,538 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:00,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:00,552 INFO L225 Difference]: With dead ends: 11100 [2022-02-10 22:24:00,552 INFO L226 Difference]: Without dead ends: 10614 [2022-02-10 22:24:00,553 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:24:00,553 INFO L934 BasicCegarLoop]: 303 mSDtfsCounter, 192 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:00,553 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 3436 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:00,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10614 states. [2022-02-10 22:24:00,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10614 to 9006. [2022-02-10 22:24:00,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:00,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-02-10 22:24:00,673 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-02-10 22:24:00,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:00,673 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-02-10 22:24:00,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:00,673 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-02-10 22:24:00,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:00,683 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:00,683 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:00,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-02-10 22:24:00,683 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:00,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:00,684 INFO L85 PathProgramCache]: Analyzing trace with hash -976972206, now seen corresponding path program 89 times [2022-02-10 22:24:00,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:00,684 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350705319] [2022-02-10 22:24:00,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:00,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:00,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:00,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:00,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350705319] [2022-02-10 22:24:00,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350705319] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:00,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:00,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:00,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265019400] [2022-02-10 22:24:00,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:00,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:00,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:00,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:00,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:00,804 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:01,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:01,394 INFO L93 Difference]: Finished difference Result 11136 states and 30004 transitions. [2022-02-10 22:24:01,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:24:01,394 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:01,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:01,409 INFO L225 Difference]: With dead ends: 11136 [2022-02-10 22:24:01,409 INFO L226 Difference]: Without dead ends: 10610 [2022-02-10 22:24:01,410 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:24:01,410 INFO L934 BasicCegarLoop]: 312 mSDtfsCounter, 255 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:01,410 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 2601 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:24:01,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10610 states. [2022-02-10 22:24:01,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10610 to 9002. [2022-02-10 22:24:01,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:01,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-02-10 22:24:01,631 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-02-10 22:24:01,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:01,632 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-02-10 22:24:01,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:01,632 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-02-10 22:24:01,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:01,642 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:01,642 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:01,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-02-10 22:24:01,643 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:01,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:01,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1173918626, now seen corresponding path program 90 times [2022-02-10 22:24:01,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:01,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709779208] [2022-02-10 22:24:01,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:01,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:01,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:01,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:01,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709779208] [2022-02-10 22:24:01,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709779208] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:01,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:01,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:01,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656927289] [2022-02-10 22:24:01,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:01,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:01,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:01,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:01,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:01,784 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:02,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:02,501 INFO L93 Difference]: Finished difference Result 11172 states and 30099 transitions. [2022-02-10 22:24:02,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:24:02,501 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:02,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:02,515 INFO L225 Difference]: With dead ends: 11172 [2022-02-10 22:24:02,515 INFO L226 Difference]: Without dead ends: 10606 [2022-02-10 22:24:02,516 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:24:02,516 INFO L934 BasicCegarLoop]: 321 mSDtfsCounter, 293 mSDsluCounter, 3338 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 3608 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:02,516 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 3608 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:02,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10606 states. [2022-02-10 22:24:02,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10606 to 8998. [2022-02-10 22:24:02,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7003445592975437) internal successors, (24295), 8997 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:02,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24295 transitions. [2022-02-10 22:24:02,631 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24295 transitions. Word has length 109 [2022-02-10 22:24:02,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:02,631 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24295 transitions. [2022-02-10 22:24:02,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:02,631 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24295 transitions. [2022-02-10 22:24:02,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:02,641 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:02,641 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:02,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-02-10 22:24:02,641 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:02,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:02,642 INFO L85 PathProgramCache]: Analyzing trace with hash 2138109974, now seen corresponding path program 91 times [2022-02-10 22:24:02,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:02,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238953336] [2022-02-10 22:24:02,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:02,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:02,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:02,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:02,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238953336] [2022-02-10 22:24:02,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238953336] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:02,770 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:02,770 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:02,770 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761205444] [2022-02-10 22:24:02,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:02,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:02,770 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:02,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:02,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:02,771 INFO L87 Difference]: Start difference. First operand 8998 states and 24295 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:03,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:03,520 INFO L93 Difference]: Finished difference Result 11284 states and 30371 transitions. [2022-02-10 22:24:03,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 22:24:03,520 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:03,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:03,536 INFO L225 Difference]: With dead ends: 11284 [2022-02-10 22:24:03,536 INFO L226 Difference]: Without dead ends: 10670 [2022-02-10 22:24:03,537 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 916 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=796, Invalid=2510, Unknown=0, NotChecked=0, Total=3306 [2022-02-10 22:24:03,537 INFO L934 BasicCegarLoop]: 321 mSDtfsCounter, 379 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:03,537 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 3090 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:03,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2022-02-10 22:24:03,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 8986. [2022-02-10 22:24:03,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8986 states, 8985 states have (on average 2.701168614357262) internal successors, (24270), 8985 states have internal predecessors, (24270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:03,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8986 states to 8986 states and 24270 transitions. [2022-02-10 22:24:03,660 INFO L78 Accepts]: Start accepts. Automaton has 8986 states and 24270 transitions. Word has length 109 [2022-02-10 22:24:03,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:03,660 INFO L470 AbstractCegarLoop]: Abstraction has 8986 states and 24270 transitions. [2022-02-10 22:24:03,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:03,661 INFO L276 IsEmpty]: Start isEmpty. Operand 8986 states and 24270 transitions. [2022-02-10 22:24:03,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:03,670 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:03,670 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:03,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-02-10 22:24:03,671 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:03,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:03,671 INFO L85 PathProgramCache]: Analyzing trace with hash -831958788, now seen corresponding path program 92 times [2022-02-10 22:24:03,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:03,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582001704] [2022-02-10 22:24:03,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:03,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:03,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:03,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:03,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582001704] [2022-02-10 22:24:03,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582001704] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:03,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:03,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:03,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370026707] [2022-02-10 22:24:03,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:03,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:03,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:03,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:03,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:03,811 INFO L87 Difference]: Start difference. First operand 8986 states and 24270 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:04,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:04,277 INFO L93 Difference]: Finished difference Result 11086 states and 29870 transitions. [2022-02-10 22:24:04,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:24:04,277 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:04,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:04,292 INFO L225 Difference]: With dead ends: 11086 [2022-02-10 22:24:04,292 INFO L226 Difference]: Without dead ends: 10601 [2022-02-10 22:24:04,292 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=900, Unknown=0, NotChecked=0, Total=1190 [2022-02-10 22:24:04,292 INFO L934 BasicCegarLoop]: 304 mSDtfsCounter, 211 mSDsluCounter, 3015 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:04,293 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 3266 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:04,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10601 states. [2022-02-10 22:24:04,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10601 to 9010. [2022-02-10 22:24:04,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:04,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-02-10 22:24:04,410 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-02-10 22:24:04,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:04,410 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-02-10 22:24:04,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:04,410 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-02-10 22:24:04,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:04,420 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:04,420 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:04,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-02-10 22:24:04,420 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:04,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:04,421 INFO L85 PathProgramCache]: Analyzing trace with hash -150338134, now seen corresponding path program 93 times [2022-02-10 22:24:04,421 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:04,421 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881574531] [2022-02-10 22:24:04,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:04,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:04,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:04,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:04,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881574531] [2022-02-10 22:24:04,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881574531] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:04,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:04,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:04,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057988368] [2022-02-10 22:24:04,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:04,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:04,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:04,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:04,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:04,542 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:05,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:05,064 INFO L93 Difference]: Finished difference Result 11052 states and 29781 transitions. [2022-02-10 22:24:05,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:05,064 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:05,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:05,080 INFO L225 Difference]: With dead ends: 11052 [2022-02-10 22:24:05,080 INFO L226 Difference]: Without dead ends: 10566 [2022-02-10 22:24:05,080 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:24:05,080 INFO L934 BasicCegarLoop]: 306 mSDtfsCounter, 199 mSDsluCounter, 3000 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 3262 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:05,080 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 3262 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:05,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10566 states. [2022-02-10 22:24:05,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10566 to 9006. [2022-02-10 22:24:05,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:05,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-02-10 22:24:05,197 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-02-10 22:24:05,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:05,197 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-02-10 22:24:05,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:05,197 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-02-10 22:24:05,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:05,207 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:05,207 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:05,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-02-10 22:24:05,208 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:05,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:05,208 INFO L85 PathProgramCache]: Analyzing trace with hash 550349422, now seen corresponding path program 94 times [2022-02-10 22:24:05,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:05,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793065881] [2022-02-10 22:24:05,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:05,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:05,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:05,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:05,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793065881] [2022-02-10 22:24:05,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793065881] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:05,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:05,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:05,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578700993] [2022-02-10 22:24:05,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:05,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:05,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:05,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:05,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:05,327 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:05,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:05,967 INFO L93 Difference]: Finished difference Result 11088 states and 29876 transitions. [2022-02-10 22:24:05,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:24:05,967 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:05,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:05,982 INFO L225 Difference]: With dead ends: 11088 [2022-02-10 22:24:05,982 INFO L226 Difference]: Without dead ends: 10562 [2022-02-10 22:24:05,983 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=499, Invalid=1571, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:24:05,983 INFO L934 BasicCegarLoop]: 315 mSDtfsCounter, 254 mSDsluCounter, 3083 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 3352 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:05,983 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 3352 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:05,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10562 states. [2022-02-10 22:24:06,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10562 to 9002. [2022-02-10 22:24:06,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:06,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-02-10 22:24:06,101 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-02-10 22:24:06,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:06,101 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-02-10 22:24:06,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:06,101 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-02-10 22:24:06,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:06,111 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:06,111 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:06,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-02-10 22:24:06,111 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:06,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:06,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1593727042, now seen corresponding path program 95 times [2022-02-10 22:24:06,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:06,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421722497] [2022-02-10 22:24:06,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:06,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:06,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:06,231 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:06,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421722497] [2022-02-10 22:24:06,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421722497] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:06,231 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:06,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:06,231 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298024203] [2022-02-10 22:24:06,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:06,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:06,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:06,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:06,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:06,232 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:06,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:06,880 INFO L93 Difference]: Finished difference Result 11176 states and 30090 transitions. [2022-02-10 22:24:06,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-10 22:24:06,880 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:06,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:06,896 INFO L225 Difference]: With dead ends: 11176 [2022-02-10 22:24:06,896 INFO L226 Difference]: Without dead ends: 10610 [2022-02-10 22:24:06,896 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1998, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:24:06,896 INFO L934 BasicCegarLoop]: 318 mSDtfsCounter, 322 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:06,897 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 3542 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:06,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10610 states. [2022-02-10 22:24:06,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10610 to 8998. [2022-02-10 22:24:07,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7007891519395355) internal successors, (24299), 8997 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:07,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24299 transitions. [2022-02-10 22:24:07,016 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24299 transitions. Word has length 109 [2022-02-10 22:24:07,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:07,016 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24299 transitions. [2022-02-10 22:24:07,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:07,017 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24299 transitions. [2022-02-10 22:24:07,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:07,027 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:07,027 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:07,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-02-10 22:24:07,027 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:07,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:07,027 INFO L85 PathProgramCache]: Analyzing trace with hash 198685442, now seen corresponding path program 96 times [2022-02-10 22:24:07,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:07,027 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420382826] [2022-02-10 22:24:07,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:07,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:07,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:07,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:07,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420382826] [2022-02-10 22:24:07,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420382826] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:07,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:07,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:07,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930725283] [2022-02-10 22:24:07,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:07,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:07,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:07,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:07,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:07,162 INFO L87 Difference]: Start difference. First operand 8998 states and 24299 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:07,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:07,632 INFO L93 Difference]: Finished difference Result 11150 states and 30042 transitions. [2022-02-10 22:24:07,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:24:07,632 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:07,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:07,646 INFO L225 Difference]: With dead ends: 11150 [2022-02-10 22:24:07,646 INFO L226 Difference]: Without dead ends: 10665 [2022-02-10 22:24:07,646 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:24:07,647 INFO L934 BasicCegarLoop]: 302 mSDtfsCounter, 236 mSDsluCounter, 2734 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2988 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:07,647 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2988 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:07,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10665 states. [2022-02-10 22:24:07,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10665 to 9010. [2022-02-10 22:24:07,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:07,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-02-10 22:24:07,761 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-02-10 22:24:07,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:07,761 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-02-10 22:24:07,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:07,761 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-02-10 22:24:07,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:07,771 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:07,771 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:07,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-02-10 22:24:07,771 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:07,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:07,771 INFO L85 PathProgramCache]: Analyzing trace with hash 880306096, now seen corresponding path program 97 times [2022-02-10 22:24:07,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:07,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772596269] [2022-02-10 22:24:07,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:07,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:07,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:07,905 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:07,905 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772596269] [2022-02-10 22:24:07,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772596269] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:07,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:07,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:07,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062420672] [2022-02-10 22:24:07,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:07,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:07,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:07,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:07,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:07,906 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:08,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:08,399 INFO L93 Difference]: Finished difference Result 11108 states and 29931 transitions. [2022-02-10 22:24:08,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:08,399 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:08,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:08,414 INFO L225 Difference]: With dead ends: 11108 [2022-02-10 22:24:08,414 INFO L226 Difference]: Without dead ends: 10622 [2022-02-10 22:24:08,415 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:24:08,415 INFO L934 BasicCegarLoop]: 303 mSDtfsCounter, 221 mSDsluCounter, 3149 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:08,415 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3405 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:08,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10622 states. [2022-02-10 22:24:08,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10622 to 9006. [2022-02-10 22:24:08,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:08,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-02-10 22:24:08,531 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-02-10 22:24:08,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:08,532 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-02-10 22:24:08,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:08,532 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-02-10 22:24:08,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:08,586 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:08,586 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:08,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-02-10 22:24:08,586 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:08,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:08,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1580993652, now seen corresponding path program 98 times [2022-02-10 22:24:08,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:08,587 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497924842] [2022-02-10 22:24:08,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:08,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:08,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:08,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:08,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497924842] [2022-02-10 22:24:08,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497924842] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:08,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:08,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:08,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273839336] [2022-02-10 22:24:08,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:08,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:08,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:08,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:08,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:08,731 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:09,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:09,418 INFO L93 Difference]: Finished difference Result 11236 states and 30263 transitions. [2022-02-10 22:24:09,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:24:09,418 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:09,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:09,434 INFO L225 Difference]: With dead ends: 11236 [2022-02-10 22:24:09,434 INFO L226 Difference]: Without dead ends: 10710 [2022-02-10 22:24:09,434 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=487, Invalid=1493, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:24:09,435 INFO L934 BasicCegarLoop]: 306 mSDtfsCounter, 294 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 2757 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:09,435 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 2757 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:09,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10710 states. [2022-02-10 22:24:09,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10710 to 9002. [2022-02-10 22:24:09,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:09,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-02-10 22:24:09,563 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-02-10 22:24:09,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:09,564 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-02-10 22:24:09,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:09,564 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-02-10 22:24:09,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:09,575 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:09,575 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:09,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-02-10 22:24:09,576 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:09,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:09,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1636285616, now seen corresponding path program 99 times [2022-02-10 22:24:09,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:09,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036602492] [2022-02-10 22:24:09,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:09,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:09,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:09,694 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:09,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036602492] [2022-02-10 22:24:09,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036602492] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:09,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:09,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:09,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625763192] [2022-02-10 22:24:09,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:09,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:09,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:09,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:09,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:09,695 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:10,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:10,249 INFO L93 Difference]: Finished difference Result 11238 states and 30255 transitions. [2022-02-10 22:24:10,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:24:10,249 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:10,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:10,265 INFO L225 Difference]: With dead ends: 11238 [2022-02-10 22:24:10,265 INFO L226 Difference]: Without dead ends: 10710 [2022-02-10 22:24:10,265 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=441, Invalid=1451, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:24:10,266 INFO L934 BasicCegarLoop]: 312 mSDtfsCounter, 285 mSDsluCounter, 3287 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:10,266 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 3531 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:10,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10710 states. [2022-02-10 22:24:10,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10710 to 9006. [2022-02-10 22:24:10,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:10,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-02-10 22:24:10,386 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-02-10 22:24:10,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:10,386 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-02-10 22:24:10,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:10,386 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-02-10 22:24:10,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:10,397 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:10,397 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:10,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-02-10 22:24:10,397 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:10,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:10,398 INFO L85 PathProgramCache]: Analyzing trace with hash 150649338, now seen corresponding path program 100 times [2022-02-10 22:24:10,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:10,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979530922] [2022-02-10 22:24:10,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:10,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:10,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:10,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:10,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979530922] [2022-02-10 22:24:10,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979530922] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:10,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:10,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:10,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22450943] [2022-02-10 22:24:10,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:10,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:10,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:10,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:10,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:10,523 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:11,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:11,003 INFO L93 Difference]: Finished difference Result 11090 states and 29869 transitions. [2022-02-10 22:24:11,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:11,003 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:11,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:11,018 INFO L225 Difference]: With dead ends: 11090 [2022-02-10 22:24:11,018 INFO L226 Difference]: Without dead ends: 10605 [2022-02-10 22:24:11,018 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=324, Invalid=1008, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:24:11,018 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 222 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:11,018 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 2996 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:11,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10605 states. [2022-02-10 22:24:11,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10605 to 9010. [2022-02-10 22:24:11,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:11,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-02-10 22:24:11,140 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-02-10 22:24:11,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:11,140 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-02-10 22:24:11,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:11,140 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-02-10 22:24:11,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:11,150 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:11,150 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:11,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-02-10 22:24:11,150 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:11,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:11,151 INFO L85 PathProgramCache]: Analyzing trace with hash 832269992, now seen corresponding path program 101 times [2022-02-10 22:24:11,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:11,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777618698] [2022-02-10 22:24:11,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:11,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:11,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:11,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:11,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777618698] [2022-02-10 22:24:11,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777618698] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:11,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:11,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:11,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253525405] [2022-02-10 22:24:11,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:11,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:11,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:11,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:11,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:11,273 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:11,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:11,728 INFO L93 Difference]: Finished difference Result 11008 states and 29648 transitions. [2022-02-10 22:24:11,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:24:11,728 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:11,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:11,743 INFO L225 Difference]: With dead ends: 11008 [2022-02-10 22:24:11,743 INFO L226 Difference]: Without dead ends: 10510 [2022-02-10 22:24:11,743 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:24:11,744 INFO L934 BasicCegarLoop]: 300 mSDtfsCounter, 201 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 3215 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:11,744 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 3215 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:11,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10510 states. [2022-02-10 22:24:11,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10510 to 8994. [2022-02-10 22:24:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.70076726342711) internal successors, (24288), 8993 states have internal predecessors, (24288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24288 transitions. [2022-02-10 22:24:11,861 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24288 transitions. Word has length 109 [2022-02-10 22:24:11,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:11,861 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24288 transitions. [2022-02-10 22:24:11,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:11,862 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24288 transitions. [2022-02-10 22:24:11,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:11,872 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:11,872 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:11,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-02-10 22:24:11,872 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:11,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:11,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1280629754, now seen corresponding path program 102 times [2022-02-10 22:24:11,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:11,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528946879] [2022-02-10 22:24:11,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:11,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:11,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:11,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:11,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528946879] [2022-02-10 22:24:11,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528946879] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:11,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:11,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:11,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415936248] [2022-02-10 22:24:11,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:11,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:11,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:11,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:11,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:11,995 INFO L87 Difference]: Start difference. First operand 8994 states and 24288 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:12,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:12,449 INFO L93 Difference]: Finished difference Result 11186 states and 30141 transitions. [2022-02-10 22:24:12,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:24:12,450 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:12,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:12,464 INFO L225 Difference]: With dead ends: 11186 [2022-02-10 22:24:12,464 INFO L226 Difference]: Without dead ends: 10701 [2022-02-10 22:24:12,464 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=301, Invalid=959, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:24:12,465 INFO L934 BasicCegarLoop]: 300 mSDtfsCounter, 237 mSDsluCounter, 2909 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:12,465 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 3157 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:12,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-02-10 22:24:12,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 9010. [2022-02-10 22:24:12,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:12,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-02-10 22:24:12,582 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-02-10 22:24:12,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:12,582 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-02-10 22:24:12,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:12,582 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-02-10 22:24:12,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:12,592 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:12,592 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:12,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-02-10 22:24:12,592 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:12,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:12,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1962250408, now seen corresponding path program 103 times [2022-02-10 22:24:12,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:12,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605960979] [2022-02-10 22:24:12,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:12,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:12,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:12,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:12,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605960979] [2022-02-10 22:24:12,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605960979] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:12,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:12,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:12,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531484939] [2022-02-10 22:24:12,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:12,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:12,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:12,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:12,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:12,709 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:13,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:13,197 INFO L93 Difference]: Finished difference Result 11144 states and 30030 transitions. [2022-02-10 22:24:13,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:13,197 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:13,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:13,212 INFO L225 Difference]: With dead ends: 11144 [2022-02-10 22:24:13,212 INFO L226 Difference]: Without dead ends: 10658 [2022-02-10 22:24:13,212 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:24:13,212 INFO L934 BasicCegarLoop]: 301 mSDtfsCounter, 221 mSDsluCounter, 3135 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3389 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:13,213 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3389 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:13,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10658 states. [2022-02-10 22:24:13,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10658 to 9006. [2022-02-10 22:24:13,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:13,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-02-10 22:24:13,343 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-02-10 22:24:13,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:13,343 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-02-10 22:24:13,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:13,343 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-02-10 22:24:13,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:13,354 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:13,354 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:13,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-02-10 22:24:13,354 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:13,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:13,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1632029332, now seen corresponding path program 104 times [2022-02-10 22:24:13,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:13,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819200977] [2022-02-10 22:24:13,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:13,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:13,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:13,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:13,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819200977] [2022-02-10 22:24:13,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819200977] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:13,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:13,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:13,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406939726] [2022-02-10 22:24:13,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:13,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:13,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:13,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:13,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:13,483 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:14,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:14,082 INFO L93 Difference]: Finished difference Result 11252 states and 30307 transitions. [2022-02-10 22:24:14,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:24:14,083 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:14,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:14,097 INFO L225 Difference]: With dead ends: 11252 [2022-02-10 22:24:14,097 INFO L226 Difference]: Without dead ends: 10726 [2022-02-10 22:24:14,098 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=476, Invalid=1416, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:24:14,098 INFO L934 BasicCegarLoop]: 304 mSDtfsCounter, 291 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:14,098 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 3265 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:14,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10726 states. [2022-02-10 22:24:14,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10726 to 9002. [2022-02-10 22:24:14,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:14,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-02-10 22:24:14,219 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-02-10 22:24:14,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:14,220 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-02-10 22:24:14,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:14,220 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-02-10 22:24:14,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:14,234 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:14,234 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:14,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-02-10 22:24:14,234 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:14,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:14,235 INFO L85 PathProgramCache]: Analyzing trace with hash -554341304, now seen corresponding path program 105 times [2022-02-10 22:24:14,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:14,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545465449] [2022-02-10 22:24:14,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:14,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:14,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:14,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545465449] [2022-02-10 22:24:14,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545465449] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:14,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:14,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:14,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525601546] [2022-02-10 22:24:14,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:14,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:14,369 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:14,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:14,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:14,369 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:14,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:14,929 INFO L93 Difference]: Finished difference Result 11350 states and 30563 transitions. [2022-02-10 22:24:14,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:24:14,929 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:14,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:14,946 INFO L225 Difference]: With dead ends: 11350 [2022-02-10 22:24:14,946 INFO L226 Difference]: Without dead ends: 10822 [2022-02-10 22:24:14,946 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1528, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:24:14,946 INFO L934 BasicCegarLoop]: 313 mSDtfsCounter, 294 mSDsluCounter, 3103 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 3353 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:14,946 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 3353 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:14,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10822 states. [2022-02-10 22:24:15,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10822 to 9006. [2022-02-10 22:24:15,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:15,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-02-10 22:24:15,077 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-02-10 22:24:15,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:15,077 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-02-10 22:24:15,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:15,077 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-02-10 22:24:15,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:15,089 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:15,089 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:15,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-02-10 22:24:15,089 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:15,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:15,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1232593650, now seen corresponding path program 106 times [2022-02-10 22:24:15,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:15,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233179116] [2022-02-10 22:24:15,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:15,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:15,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:15,212 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:15,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233179116] [2022-02-10 22:24:15,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233179116] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:15,212 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:15,212 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:15,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991813447] [2022-02-10 22:24:15,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:15,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:15,213 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:15,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:15,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:15,213 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:15,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:15,734 INFO L93 Difference]: Finished difference Result 11186 states and 30133 transitions. [2022-02-10 22:24:15,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:15,734 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:15,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:15,747 INFO L225 Difference]: With dead ends: 11186 [2022-02-10 22:24:15,747 INFO L226 Difference]: Without dead ends: 10701 [2022-02-10 22:24:15,747 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:24:15,747 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 228 mSDsluCounter, 3008 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:15,747 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 3260 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:15,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-02-10 22:24:15,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 9010. [2022-02-10 22:24:15,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:15,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-02-10 22:24:15,857 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-02-10 22:24:15,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:15,857 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-02-10 22:24:15,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:15,857 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-02-10 22:24:15,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:15,868 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:15,868 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:15,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-02-10 22:24:15,868 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:15,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:15,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1914214304, now seen corresponding path program 107 times [2022-02-10 22:24:15,868 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:15,868 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742042115] [2022-02-10 22:24:15,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:15,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:15,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:15,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:15,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742042115] [2022-02-10 22:24:15,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742042115] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:15,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:15,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:15,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268436175] [2022-02-10 22:24:15,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:15,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:15,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:15,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:15,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:15,983 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:16,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:16,441 INFO L93 Difference]: Finished difference Result 11120 states and 29956 transitions. [2022-02-10 22:24:16,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:24:16,441 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:16,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:16,456 INFO L225 Difference]: With dead ends: 11120 [2022-02-10 22:24:16,456 INFO L226 Difference]: Without dead ends: 10626 [2022-02-10 22:24:16,457 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:24:16,457 INFO L934 BasicCegarLoop]: 299 mSDtfsCounter, 212 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:16,457 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3211 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:16,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10626 states. [2022-02-10 22:24:16,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10626 to 8998. [2022-02-10 22:24:16,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7003445592975437) internal successors, (24295), 8997 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:16,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24295 transitions. [2022-02-10 22:24:16,578 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24295 transitions. Word has length 109 [2022-02-10 22:24:16,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:16,578 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24295 transitions. [2022-02-10 22:24:16,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:16,578 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24295 transitions. [2022-02-10 22:24:16,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:16,589 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:16,589 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:16,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-02-10 22:24:16,589 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:16,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:16,590 INFO L85 PathProgramCache]: Analyzing trace with hash -2057819140, now seen corresponding path program 108 times [2022-02-10 22:24:16,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:16,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106356190] [2022-02-10 22:24:16,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:16,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:16,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:16,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:16,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106356190] [2022-02-10 22:24:16,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106356190] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:16,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:16,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:16,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750606310] [2022-02-10 22:24:16,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:16,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:16,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:16,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:16,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:16,710 INFO L87 Difference]: Start difference. First operand 8998 states and 24295 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:17,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:17,355 INFO L93 Difference]: Finished difference Result 11371 states and 30602 transitions. [2022-02-10 22:24:17,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:24:17,355 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:17,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:17,370 INFO L225 Difference]: With dead ends: 11371 [2022-02-10 22:24:17,370 INFO L226 Difference]: Without dead ends: 10800 [2022-02-10 22:24:17,370 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=619, Invalid=2033, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:24:17,370 INFO L934 BasicCegarLoop]: 320 mSDtfsCounter, 353 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:17,370 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 3423 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:17,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10800 states. [2022-02-10 22:24:17,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10800 to 9002. [2022-02-10 22:24:17,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.6999222308632373) internal successors, (24302), 9001 states have internal predecessors, (24302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:17,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24302 transitions. [2022-02-10 22:24:17,485 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24302 transitions. Word has length 109 [2022-02-10 22:24:17,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:17,485 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24302 transitions. [2022-02-10 22:24:17,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:17,485 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24302 transitions. [2022-02-10 22:24:17,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:17,495 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:17,495 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:17,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-02-10 22:24:17,495 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:17,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:17,495 INFO L85 PathProgramCache]: Analyzing trace with hash -268256686, now seen corresponding path program 109 times [2022-02-10 22:24:17,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:17,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114946339] [2022-02-10 22:24:17,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:17,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:17,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:17,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:17,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114946339] [2022-02-10 22:24:17,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114946339] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:17,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:17,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:17,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792895824] [2022-02-10 22:24:17,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:17,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:17,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:17,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:17,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:17,611 INFO L87 Difference]: Start difference. First operand 9002 states and 24302 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:18,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:18,189 INFO L93 Difference]: Finished difference Result 11254 states and 30295 transitions. [2022-02-10 22:24:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:24:18,189 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:18,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:18,206 INFO L225 Difference]: With dead ends: 11254 [2022-02-10 22:24:18,206 INFO L226 Difference]: Without dead ends: 10726 [2022-02-10 22:24:18,207 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1606, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:24:18,207 INFO L934 BasicCegarLoop]: 313 mSDtfsCounter, 290 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3534 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:18,207 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 3534 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:18,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10726 states. [2022-02-10 22:24:18,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10726 to 9006. [2022-02-10 22:24:18,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6995002776235424) internal successors, (24309), 9005 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:18,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24309 transitions. [2022-02-10 22:24:18,323 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24309 transitions. Word has length 109 [2022-02-10 22:24:18,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:18,323 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24309 transitions. [2022-02-10 22:24:18,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:18,323 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24309 transitions. [2022-02-10 22:24:18,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:18,333 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:18,333 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:18,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-02-10 22:24:18,333 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:18,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:18,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1518678268, now seen corresponding path program 110 times [2022-02-10 22:24:18,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:18,334 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926918517] [2022-02-10 22:24:18,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:18,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:18,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:18,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:18,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926918517] [2022-02-10 22:24:18,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926918517] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:18,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:18,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:18,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92725355] [2022-02-10 22:24:18,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:18,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:18,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:18,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:18,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:18,453 INFO L87 Difference]: Start difference. First operand 9006 states and 24309 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:18,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:18,911 INFO L93 Difference]: Finished difference Result 11106 states and 29909 transitions. [2022-02-10 22:24:18,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:18,911 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:18,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:18,925 INFO L225 Difference]: With dead ends: 11106 [2022-02-10 22:24:18,925 INFO L226 Difference]: Without dead ends: 10621 [2022-02-10 22:24:18,926 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:24:18,926 INFO L934 BasicCegarLoop]: 301 mSDtfsCounter, 227 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:18,926 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2897 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:24:18,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10621 states. [2022-02-10 22:24:19,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10621 to 9010. [2022-02-10 22:24:19,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.699078699078699) internal successors, (24316), 9009 states have internal predecessors, (24316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:19,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24316 transitions. [2022-02-10 22:24:19,040 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24316 transitions. Word has length 109 [2022-02-10 22:24:19,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:19,040 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24316 transitions. [2022-02-10 22:24:19,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:19,040 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24316 transitions. [2022-02-10 22:24:19,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:19,050 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:19,050 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:19,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-02-10 22:24:19,050 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:19,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:19,050 INFO L85 PathProgramCache]: Analyzing trace with hash -2094668374, now seen corresponding path program 111 times [2022-02-10 22:24:19,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:19,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575219444] [2022-02-10 22:24:19,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:19,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:19,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:19,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:19,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575219444] [2022-02-10 22:24:19,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575219444] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:19,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:19,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:19,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448941141] [2022-02-10 22:24:19,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:19,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:19,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:19,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:19,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:19,166 INFO L87 Difference]: Start difference. First operand 9010 states and 24316 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:19,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:19,606 INFO L93 Difference]: Finished difference Result 11008 states and 29644 transitions. [2022-02-10 22:24:19,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:24:19,606 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:19,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:19,620 INFO L225 Difference]: With dead ends: 11008 [2022-02-10 22:24:19,620 INFO L226 Difference]: Without dead ends: 10506 [2022-02-10 22:24:19,621 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:24:19,621 INFO L934 BasicCegarLoop]: 295 mSDtfsCounter, 203 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 3353 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:19,621 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 3353 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:24:19,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10506 states. [2022-02-10 22:24:19,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10506 to 8990. [2022-02-10 22:24:19,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8990 states, 8989 states have (on average 2.7007453554344196) internal successors, (24277), 8989 states have internal predecessors, (24277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:19,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8990 states to 8990 states and 24277 transitions. [2022-02-10 22:24:19,735 INFO L78 Accepts]: Start accepts. Automaton has 8990 states and 24277 transitions. Word has length 109 [2022-02-10 22:24:19,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:19,735 INFO L470 AbstractCegarLoop]: Abstraction has 8990 states and 24277 transitions. [2022-02-10 22:24:19,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:19,735 INFO L276 IsEmpty]: Start isEmpty. Operand 8990 states and 24277 transitions. [2022-02-10 22:24:19,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:19,745 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:19,745 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:19,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-02-10 22:24:19,745 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:19,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:19,746 INFO L85 PathProgramCache]: Analyzing trace with hash 287389928, now seen corresponding path program 112 times [2022-02-10 22:24:19,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:19,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453294804] [2022-02-10 22:24:19,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:19,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:19,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:19,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453294804] [2022-02-10 22:24:19,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453294804] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:19,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:19,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:19,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065448081] [2022-02-10 22:24:19,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:19,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:19,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:19,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:19,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:19,862 INFO L87 Difference]: Start difference. First operand 8990 states and 24277 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:20,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:20,312 INFO L93 Difference]: Finished difference Result 11042 states and 29745 transitions. [2022-02-10 22:24:20,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:24:20,312 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:20,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:20,327 INFO L225 Difference]: With dead ends: 11042 [2022-02-10 22:24:20,327 INFO L226 Difference]: Without dead ends: 10557 [2022-02-10 22:24:20,328 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:24:20,328 INFO L934 BasicCegarLoop]: 298 mSDtfsCounter, 245 mSDsluCounter, 2961 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:20,328 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 3206 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:20,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2022-02-10 22:24:20,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 9010. [2022-02-10 22:24:20,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:20,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-02-10 22:24:20,452 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-02-10 22:24:20,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:20,453 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-02-10 22:24:20,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:20,453 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-02-10 22:24:20,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:20,463 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:20,463 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:20,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-02-10 22:24:20,463 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:20,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:20,463 INFO L85 PathProgramCache]: Analyzing trace with hash 969010582, now seen corresponding path program 113 times [2022-02-10 22:24:20,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:20,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296385760] [2022-02-10 22:24:20,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:20,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:20,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:20,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:20,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296385760] [2022-02-10 22:24:20,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296385760] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:20,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:20,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:20,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502276695] [2022-02-10 22:24:20,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:20,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:20,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:20,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:20,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:20,590 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:21,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:21,073 INFO L93 Difference]: Finished difference Result 11000 states and 29634 transitions. [2022-02-10 22:24:21,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:21,073 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:21,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:21,088 INFO L225 Difference]: With dead ends: 11000 [2022-02-10 22:24:21,089 INFO L226 Difference]: Without dead ends: 10514 [2022-02-10 22:24:21,089 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:24:21,089 INFO L934 BasicCegarLoop]: 299 mSDtfsCounter, 224 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:21,089 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 3195 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:21,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10514 states. [2022-02-10 22:24:21,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10514 to 9006. [2022-02-10 22:24:21,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:21,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-02-10 22:24:21,209 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-02-10 22:24:21,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:21,209 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-02-10 22:24:21,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:21,209 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-02-10 22:24:21,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:21,219 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:21,219 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:21,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-02-10 22:24:21,219 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:21,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:21,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1669698138, now seen corresponding path program 114 times [2022-02-10 22:24:21,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:21,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836916116] [2022-02-10 22:24:21,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:21,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:21,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:21,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:21,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836916116] [2022-02-10 22:24:21,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836916116] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:21,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:21,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:21,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84387757] [2022-02-10 22:24:21,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:21,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:21,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:21,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:21,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:21,364 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:22,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:22,009 INFO L93 Difference]: Finished difference Result 11068 states and 29801 transitions. [2022-02-10 22:24:22,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:24:22,009 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:22,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:22,024 INFO L225 Difference]: With dead ends: 11068 [2022-02-10 22:24:22,024 INFO L226 Difference]: Without dead ends: 10542 [2022-02-10 22:24:22,025 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=466, Invalid=1340, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 22:24:22,025 INFO L934 BasicCegarLoop]: 302 mSDtfsCounter, 293 mSDsluCounter, 2453 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:22,025 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 2717 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:22,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10542 states. [2022-02-10 22:24:22,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10542 to 9002. [2022-02-10 22:24:22,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:22,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-02-10 22:24:22,217 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-02-10 22:24:22,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:22,217 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-02-10 22:24:22,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:22,217 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-02-10 22:24:22,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:22,227 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:22,227 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:22,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-02-10 22:24:22,227 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:22,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:22,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1547581130, now seen corresponding path program 115 times [2022-02-10 22:24:22,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:22,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357673394] [2022-02-10 22:24:22,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:22,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:22,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:22,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:22,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357673394] [2022-02-10 22:24:22,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357673394] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:22,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:22,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:22,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82885958] [2022-02-10 22:24:22,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:22,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:22,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:22,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:22,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:22,350 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:22,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:22,925 INFO L93 Difference]: Finished difference Result 11198 states and 30145 transitions. [2022-02-10 22:24:22,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:24:22,926 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:22,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:22,940 INFO L225 Difference]: With dead ends: 11198 [2022-02-10 22:24:22,940 INFO L226 Difference]: Without dead ends: 10670 [2022-02-10 22:24:22,941 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:24:22,941 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 343 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:22,941 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 2952 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:24:22,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2022-02-10 22:24:23,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 9006. [2022-02-10 22:24:23,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:23,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-02-10 22:24:23,058 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-02-10 22:24:23,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:23,058 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-02-10 22:24:23,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:23,058 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-02-10 22:24:23,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:23,068 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:23,068 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:23,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-02-10 22:24:23,068 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:23,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:23,068 INFO L85 PathProgramCache]: Analyzing trace with hash 239353824, now seen corresponding path program 116 times [2022-02-10 22:24:23,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:23,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477976023] [2022-02-10 22:24:23,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:23,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:23,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:23,187 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:23,187 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477976023] [2022-02-10 22:24:23,187 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477976023] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:23,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:23,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:23,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300808994] [2022-02-10 22:24:23,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:23,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:23,188 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:23,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:23,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:23,188 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:23,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:23,659 INFO L93 Difference]: Finished difference Result 11034 states and 29715 transitions. [2022-02-10 22:24:23,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:23,667 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:23,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:23,687 INFO L225 Difference]: With dead ends: 11034 [2022-02-10 22:24:23,687 INFO L226 Difference]: Without dead ends: 10549 [2022-02-10 22:24:23,688 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:24:23,688 INFO L934 BasicCegarLoop]: 297 mSDtfsCounter, 268 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 3120 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:23,688 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 3120 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:24:23,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10549 states. [2022-02-10 22:24:23,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10549 to 9010. [2022-02-10 22:24:23,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:23,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-02-10 22:24:23,824 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-02-10 22:24:23,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:23,824 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-02-10 22:24:23,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:23,824 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-02-10 22:24:23,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:23,834 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:23,834 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:23,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-02-10 22:24:23,835 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:23,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:23,835 INFO L85 PathProgramCache]: Analyzing trace with hash 920974478, now seen corresponding path program 117 times [2022-02-10 22:24:23,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:23,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863865745] [2022-02-10 22:24:23,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:23,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:23,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:23,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:23,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863865745] [2022-02-10 22:24:23,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863865745] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:23,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:23,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:23,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636802234] [2022-02-10 22:24:23,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:23,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:23,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:23,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:23,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:23,952 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:24,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:24,410 INFO L93 Difference]: Finished difference Result 10968 states and 29538 transitions. [2022-02-10 22:24:24,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:24:24,411 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:24,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:24,426 INFO L225 Difference]: With dead ends: 10968 [2022-02-10 22:24:24,426 INFO L226 Difference]: Without dead ends: 10474 [2022-02-10 22:24:24,426 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:24:24,426 INFO L934 BasicCegarLoop]: 289 mSDtfsCounter, 253 mSDsluCounter, 3061 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:24,426 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 3303 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:24:24,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10474 states. [2022-02-10 22:24:24,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10474 to 8998. [2022-02-10 22:24:24,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7003445592975437) internal successors, (24295), 8997 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:24,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24295 transitions. [2022-02-10 22:24:24,543 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24295 transitions. Word has length 109 [2022-02-10 22:24:24,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:24,544 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24295 transitions. [2022-02-10 22:24:24,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:24,544 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24295 transitions. [2022-02-10 22:24:24,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:24,554 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:24,554 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:24,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-02-10 22:24:24,554 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:24,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:24,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1243908330, now seen corresponding path program 118 times [2022-02-10 22:24:24,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:24,555 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846996542] [2022-02-10 22:24:24,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:24,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:24,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:24,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:24,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846996542] [2022-02-10 22:24:24,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846996542] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:24,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:24,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:24,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444890557] [2022-02-10 22:24:24,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:24,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:24,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:24,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:24,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:24,672 INFO L87 Difference]: Start difference. First operand 8998 states and 24295 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:25,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:25,330 INFO L93 Difference]: Finished difference Result 11331 states and 30492 transitions. [2022-02-10 22:24:25,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:24:25,331 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:25,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:25,346 INFO L225 Difference]: With dead ends: 11331 [2022-02-10 22:24:25,346 INFO L226 Difference]: Without dead ends: 10760 [2022-02-10 22:24:25,346 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=625, Invalid=2131, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:24:25,347 INFO L934 BasicCegarLoop]: 313 mSDtfsCounter, 415 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 3370 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:25,347 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 3370 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:25,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10760 states. [2022-02-10 22:24:25,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10760 to 9002. [2022-02-10 22:24:25,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.6999222308632373) internal successors, (24302), 9001 states have internal predecessors, (24302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:25,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24302 transitions. [2022-02-10 22:24:25,467 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24302 transitions. Word has length 109 [2022-02-10 22:24:25,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:25,467 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24302 transitions. [2022-02-10 22:24:25,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:25,467 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24302 transitions. [2022-02-10 22:24:25,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:25,477 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:25,477 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:25,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-02-10 22:24:25,477 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:25,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:25,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1261496512, now seen corresponding path program 119 times [2022-02-10 22:24:25,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:25,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968920983] [2022-02-10 22:24:25,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:25,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:25,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:25,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:25,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968920983] [2022-02-10 22:24:25,593 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968920983] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:25,593 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:25,593 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:25,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637844583] [2022-02-10 22:24:25,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:25,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:25,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:25,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:25,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:25,594 INFO L87 Difference]: Start difference. First operand 9002 states and 24302 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:26,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:26,158 INFO L93 Difference]: Finished difference Result 11206 states and 30163 transitions. [2022-02-10 22:24:26,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:24:26,159 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:26,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:26,173 INFO L225 Difference]: With dead ends: 11206 [2022-02-10 22:24:26,173 INFO L226 Difference]: Without dead ends: 10678 [2022-02-10 22:24:26,174 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1616, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:24:26,174 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 344 mSDsluCounter, 3241 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:26,174 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 3478 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:26,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10678 states. [2022-02-10 22:24:26,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10678 to 9006. [2022-02-10 22:24:26,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6995002776235424) internal successors, (24309), 9005 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:26,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24309 transitions. [2022-02-10 22:24:26,289 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24309 transitions. Word has length 109 [2022-02-10 22:24:26,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:26,289 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24309 transitions. [2022-02-10 22:24:26,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:26,290 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24309 transitions. [2022-02-10 22:24:26,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:26,299 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:26,299 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:26,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-02-10 22:24:26,300 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:26,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:26,300 INFO L85 PathProgramCache]: Analyzing trace with hash 525438442, now seen corresponding path program 120 times [2022-02-10 22:24:26,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:26,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841684037] [2022-02-10 22:24:26,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:26,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:26,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:26,427 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:26,427 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841684037] [2022-02-10 22:24:26,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841684037] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:26,427 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:26,427 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:26,427 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050431573] [2022-02-10 22:24:26,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:26,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:26,427 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:26,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:26,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:26,427 INFO L87 Difference]: Start difference. First operand 9006 states and 24309 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:26,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:26,890 INFO L93 Difference]: Finished difference Result 11042 states and 29733 transitions. [2022-02-10 22:24:26,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:26,890 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:26,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:26,905 INFO L225 Difference]: With dead ends: 11042 [2022-02-10 22:24:26,905 INFO L226 Difference]: Without dead ends: 10557 [2022-02-10 22:24:26,905 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:24:26,905 INFO L934 BasicCegarLoop]: 293 mSDtfsCounter, 269 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:26,905 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 3182 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:24:26,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2022-02-10 22:24:27,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 9010. [2022-02-10 22:24:27,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.699078699078699) internal successors, (24316), 9009 states have internal predecessors, (24316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:27,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24316 transitions. [2022-02-10 22:24:27,030 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24316 transitions. Word has length 109 [2022-02-10 22:24:27,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:27,031 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24316 transitions. [2022-02-10 22:24:27,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:27,031 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24316 transitions. [2022-02-10 22:24:27,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:27,041 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:27,041 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:27,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-02-10 22:24:27,041 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:27,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:27,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1207059096, now seen corresponding path program 121 times [2022-02-10 22:24:27,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:27,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346717219] [2022-02-10 22:24:27,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:27,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:27,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:27,157 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:27,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346717219] [2022-02-10 22:24:27,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346717219] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:27,157 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:27,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:27,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784989992] [2022-02-10 22:24:27,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:27,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:27,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:27,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:27,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:27,158 INFO L87 Difference]: Start difference. First operand 9010 states and 24316 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:27,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:27,595 INFO L93 Difference]: Finished difference Result 10968 states and 29534 transitions. [2022-02-10 22:24:27,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:24:27,595 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:27,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:27,610 INFO L225 Difference]: With dead ends: 10968 [2022-02-10 22:24:27,610 INFO L226 Difference]: Without dead ends: 10470 [2022-02-10 22:24:27,610 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1014, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:24:27,610 INFO L934 BasicCegarLoop]: 285 mSDtfsCounter, 253 mSDsluCounter, 3049 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:27,611 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 3287 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:24:27,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10470 states. [2022-02-10 22:24:27,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10470 to 8994. [2022-02-10 22:24:27,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.7003224730345825) internal successors, (24284), 8993 states have internal predecessors, (24284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:27,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24284 transitions. [2022-02-10 22:24:27,725 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24284 transitions. Word has length 109 [2022-02-10 22:24:27,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:27,725 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24284 transitions. [2022-02-10 22:24:27,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:27,725 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24284 transitions. [2022-02-10 22:24:27,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:27,735 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:27,735 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:27,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-02-10 22:24:27,735 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:27,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:27,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1881550740, now seen corresponding path program 122 times [2022-02-10 22:24:27,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:27,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544472860] [2022-02-10 22:24:27,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:27,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:27,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:27,853 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:27,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544472860] [2022-02-10 22:24:27,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544472860] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:27,853 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:27,853 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:27,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8092838] [2022-02-10 22:24:27,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:27,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:27,854 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:27,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:27,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:27,854 INFO L87 Difference]: Start difference. First operand 8994 states and 24284 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:28,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:28,574 INFO L93 Difference]: Finished difference Result 11271 states and 30302 transitions. [2022-02-10 22:24:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-10 22:24:28,574 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:28,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:28,591 INFO L225 Difference]: With dead ends: 11271 [2022-02-10 22:24:28,591 INFO L226 Difference]: Without dead ends: 10657 [2022-02-10 22:24:28,591 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-02-10 22:24:28,592 INFO L934 BasicCegarLoop]: 319 mSDtfsCounter, 497 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:28,592 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 3410 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:28,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10657 states. [2022-02-10 22:24:28,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10657 to 8998. [2022-02-10 22:24:28,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.699899966655552) internal successors, (24291), 8997 states have internal predecessors, (24291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:28,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24291 transitions. [2022-02-10 22:24:28,721 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24291 transitions. Word has length 109 [2022-02-10 22:24:28,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:28,721 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24291 transitions. [2022-02-10 22:24:28,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:28,721 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24291 transitions. [2022-02-10 22:24:28,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:28,731 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:28,731 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:28,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-02-10 22:24:28,731 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:28,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:28,732 INFO L85 PathProgramCache]: Analyzing trace with hash 824254586, now seen corresponding path program 123 times [2022-02-10 22:24:28,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:28,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832290108] [2022-02-10 22:24:28,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:28,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:28,849 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:28,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832290108] [2022-02-10 22:24:28,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832290108] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:28,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:28,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:28,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280242973] [2022-02-10 22:24:28,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:28,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:28,850 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:28,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:28,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:28,850 INFO L87 Difference]: Start difference. First operand 8998 states and 24291 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:29,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:29,538 INFO L93 Difference]: Finished difference Result 11139 states and 29960 transitions. [2022-02-10 22:24:29,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:24:29,538 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:29,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:29,553 INFO L225 Difference]: With dead ends: 11139 [2022-02-10 22:24:29,553 INFO L226 Difference]: Without dead ends: 10568 [2022-02-10 22:24:29,553 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:24:29,554 INFO L934 BasicCegarLoop]: 307 mSDtfsCounter, 429 mSDsluCounter, 3283 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:29,554 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 3512 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:29,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10568 states. [2022-02-10 22:24:29,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10568 to 9002. [2022-02-10 22:24:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.6994778357960225) internal successors, (24298), 9001 states have internal predecessors, (24298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:29,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24298 transitions. [2022-02-10 22:24:29,667 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24298 transitions. Word has length 109 [2022-02-10 22:24:29,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:29,667 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24298 transitions. [2022-02-10 22:24:29,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:29,667 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24298 transitions. [2022-02-10 22:24:29,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:29,677 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:29,677 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:29,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-02-10 22:24:29,677 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:29,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:29,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1681150256, now seen corresponding path program 124 times [2022-02-10 22:24:29,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:29,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865361701] [2022-02-10 22:24:29,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:29,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:29,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:29,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:29,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865361701] [2022-02-10 22:24:29,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865361701] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:29,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:29,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:29,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448147666] [2022-02-10 22:24:29,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:29,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:29,814 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:29,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:29,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:29,814 INFO L87 Difference]: Start difference. First operand 9002 states and 24298 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:30,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:30,451 INFO L93 Difference]: Finished difference Result 11030 states and 29675 transitions. [2022-02-10 22:24:30,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:24:30,451 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:30,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:30,465 INFO L225 Difference]: With dead ends: 11030 [2022-02-10 22:24:30,465 INFO L226 Difference]: Without dead ends: 10502 [2022-02-10 22:24:30,466 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=444, Invalid=1626, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:24:30,466 INFO L934 BasicCegarLoop]: 295 mSDtfsCounter, 365 mSDsluCounter, 2981 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 3213 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:30,466 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 3213 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:30,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10502 states. [2022-02-10 22:24:30,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10502 to 9006. [2022-02-10 22:24:30,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.69905607995558) internal successors, (24305), 9005 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:30,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24305 transitions. [2022-02-10 22:24:30,582 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24305 transitions. Word has length 109 [2022-02-10 22:24:30,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:30,582 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24305 transitions. [2022-02-10 22:24:30,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:30,582 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24305 transitions. [2022-02-10 22:24:30,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:30,592 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:30,592 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:30,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-02-10 22:24:30,592 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:30,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:30,592 INFO L85 PathProgramCache]: Analyzing trace with hash 105784698, now seen corresponding path program 125 times [2022-02-10 22:24:30,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:30,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207073009] [2022-02-10 22:24:30,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:30,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:30,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:30,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:30,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207073009] [2022-02-10 22:24:30,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207073009] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:30,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:30,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:30,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995535725] [2022-02-10 22:24:30,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:30,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:30,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:30,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:30,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:30,707 INFO L87 Difference]: Start difference. First operand 9006 states and 24305 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:31,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:31,136 INFO L93 Difference]: Finished difference Result 10898 states and 29333 transitions. [2022-02-10 22:24:31,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:31,137 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:31,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:31,152 INFO L225 Difference]: With dead ends: 10898 [2022-02-10 22:24:31,152 INFO L226 Difference]: Without dead ends: 10413 [2022-02-10 22:24:31,152 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:24:31,152 INFO L934 BasicCegarLoop]: 283 mSDtfsCounter, 302 mSDsluCounter, 2870 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:31,152 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 3100 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:24:31,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10413 states. [2022-02-10 22:24:31,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10413 to 9010. [2022-02-10 22:24:31,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6986346986346987) internal successors, (24312), 9009 states have internal predecessors, (24312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:31,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24312 transitions. [2022-02-10 22:24:31,272 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24312 transitions. Word has length 109 [2022-02-10 22:24:31,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:31,272 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24312 transitions. [2022-02-10 22:24:31,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:31,273 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24312 transitions. [2022-02-10 22:24:31,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:31,283 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:31,283 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:31,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-02-10 22:24:31,283 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:31,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:31,283 INFO L85 PathProgramCache]: Analyzing trace with hash 787405352, now seen corresponding path program 126 times [2022-02-10 22:24:31,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:31,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360509937] [2022-02-10 22:24:31,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:31,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:31,398 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:31,399 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360509937] [2022-02-10 22:24:31,399 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360509937] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:31,399 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:31,399 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:31,399 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811251398] [2022-02-10 22:24:31,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:31,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:31,399 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:31,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:31,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:31,399 INFO L87 Difference]: Start difference. First operand 9010 states and 24312 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:31,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:31,807 INFO L93 Difference]: Finished difference Result 10728 states and 28870 transitions. [2022-02-10 22:24:31,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:24:31,807 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:31,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:31,824 INFO L225 Difference]: With dead ends: 10728 [2022-02-10 22:24:31,825 INFO L226 Difference]: Without dead ends: 10192 [2022-02-10 22:24:31,825 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:24:31,825 INFO L934 BasicCegarLoop]: 275 mSDtfsCounter, 232 mSDsluCounter, 2968 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:31,825 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 3196 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:24:31,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10192 states. [2022-02-10 22:24:31,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10192 to 8956. [2022-02-10 22:24:31,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8956 states, 8955 states have (on average 2.7019542155220546) internal successors, (24196), 8955 states have internal predecessors, (24196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:31,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8956 states to 8956 states and 24196 transitions. [2022-02-10 22:24:31,956 INFO L78 Accepts]: Start accepts. Automaton has 8956 states and 24196 transitions. Word has length 109 [2022-02-10 22:24:31,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:31,957 INFO L470 AbstractCegarLoop]: Abstraction has 8956 states and 24196 transitions. [2022-02-10 22:24:31,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:31,957 INFO L276 IsEmpty]: Start isEmpty. Operand 8956 states and 24196 transitions. [2022-02-10 22:24:31,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:31,967 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:31,967 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:31,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-02-10 22:24:31,967 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:31,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:31,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1754725222, now seen corresponding path program 127 times [2022-02-10 22:24:31,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:31,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559623275] [2022-02-10 22:24:31,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:31,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:32,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:32,093 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:32,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559623275] [2022-02-10 22:24:32,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559623275] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:32,093 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:32,093 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:32,093 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019397019] [2022-02-10 22:24:32,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:32,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:32,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:32,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:32,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:32,094 INFO L87 Difference]: Start difference. First operand 8956 states and 24196 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:32,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:32,584 INFO L93 Difference]: Finished difference Result 12078 states and 32580 transitions. [2022-02-10 22:24:32,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:24:32,584 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:32,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:32,603 INFO L225 Difference]: With dead ends: 12078 [2022-02-10 22:24:32,603 INFO L226 Difference]: Without dead ends: 11593 [2022-02-10 22:24:32,604 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:24:32,604 INFO L934 BasicCegarLoop]: 302 mSDtfsCounter, 222 mSDsluCounter, 3177 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 3415 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:32,604 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 3415 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:32,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11593 states. [2022-02-10 22:24:32,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11593 to 8992. [2022-02-10 22:24:32,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7017017017017015) internal successors, (24291), 8991 states have internal predecessors, (24291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:32,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24291 transitions. [2022-02-10 22:24:32,730 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24291 transitions. Word has length 109 [2022-02-10 22:24:32,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:32,731 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24291 transitions. [2022-02-10 22:24:32,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:32,731 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24291 transitions. [2022-02-10 22:24:32,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:32,741 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:32,741 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:32,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-02-10 22:24:32,741 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:32,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:32,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1858621420, now seen corresponding path program 128 times [2022-02-10 22:24:32,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:32,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867792235] [2022-02-10 22:24:32,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:32,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:32,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:32,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:32,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867792235] [2022-02-10 22:24:32,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867792235] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:32,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:32,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:32,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855380427] [2022-02-10 22:24:32,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:32,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:32,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:32,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:32,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:32,861 INFO L87 Difference]: Start difference. First operand 8992 states and 24291 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:33,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:33,345 INFO L93 Difference]: Finished difference Result 12044 states and 32491 transitions. [2022-02-10 22:24:33,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:33,345 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:33,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:33,361 INFO L225 Difference]: With dead ends: 12044 [2022-02-10 22:24:33,361 INFO L226 Difference]: Without dead ends: 11558 [2022-02-10 22:24:33,361 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:24:33,361 INFO L934 BasicCegarLoop]: 304 mSDtfsCounter, 215 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 3424 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:33,361 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 3424 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:33,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11558 states. [2022-02-10 22:24:33,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11558 to 8988. [2022-02-10 22:24:33,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7016802047401804) internal successors, (24280), 8987 states have internal predecessors, (24280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:33,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24280 transitions. [2022-02-10 22:24:33,481 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24280 transitions. Word has length 109 [2022-02-10 22:24:33,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:33,481 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24280 transitions. [2022-02-10 22:24:33,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:33,481 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24280 transitions. [2022-02-10 22:24:33,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:33,490 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:33,490 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:33,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-02-10 22:24:33,491 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:33,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:33,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1157933864, now seen corresponding path program 129 times [2022-02-10 22:24:33,491 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:33,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112638077] [2022-02-10 22:24:33,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:33,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:33,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:33,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:33,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112638077] [2022-02-10 22:24:33,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112638077] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:33,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:33,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:33,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271970431] [2022-02-10 22:24:33,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:33,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:33,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:33,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:33,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:33,615 INFO L87 Difference]: Start difference. First operand 8988 states and 24280 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:34,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:34,240 INFO L93 Difference]: Finished difference Result 12080 states and 32586 transitions. [2022-02-10 22:24:34,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:24:34,240 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:34,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:34,255 INFO L225 Difference]: With dead ends: 12080 [2022-02-10 22:24:34,255 INFO L226 Difference]: Without dead ends: 11554 [2022-02-10 22:24:34,256 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:24:34,256 INFO L934 BasicCegarLoop]: 313 mSDtfsCounter, 280 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:34,256 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3076 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:34,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11554 states. [2022-02-10 22:24:34,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11554 to 8984. [2022-02-10 22:24:34,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7016586886340868) internal successors, (24269), 8983 states have internal predecessors, (24269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:34,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24269 transitions. [2022-02-10 22:24:34,378 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24269 transitions. Word has length 109 [2022-02-10 22:24:34,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:34,378 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24269 transitions. [2022-02-10 22:24:34,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:34,378 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24269 transitions. [2022-02-10 22:24:34,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:34,388 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:34,388 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:34,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-02-10 22:24:34,388 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:34,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:34,389 INFO L85 PathProgramCache]: Analyzing trace with hash 992956968, now seen corresponding path program 130 times [2022-02-10 22:24:34,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:34,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995124227] [2022-02-10 22:24:34,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:34,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:34,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:34,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:34,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995124227] [2022-02-10 22:24:34,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995124227] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:34,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:34,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:34,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822404734] [2022-02-10 22:24:34,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:34,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:34,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:34,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:34,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:34,511 INFO L87 Difference]: Start difference. First operand 8984 states and 24269 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:35,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:35,244 INFO L93 Difference]: Finished difference Result 12252 states and 33031 transitions. [2022-02-10 22:24:35,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:24:35,244 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:35,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:35,261 INFO L225 Difference]: With dead ends: 12252 [2022-02-10 22:24:35,261 INFO L226 Difference]: Without dead ends: 11686 [2022-02-10 22:24:35,262 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=616, Invalid=1934, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 22:24:35,262 INFO L934 BasicCegarLoop]: 318 mSDtfsCounter, 348 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 3119 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:35,262 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 3119 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:35,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11686 states. [2022-02-10 22:24:35,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11686 to 8980. [2022-02-10 22:24:35,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701637153357835) internal successors, (24258), 8979 states have internal predecessors, (24258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:35,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24258 transitions. [2022-02-10 22:24:35,387 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24258 transitions. Word has length 109 [2022-02-10 22:24:35,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:35,388 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24258 transitions. [2022-02-10 22:24:35,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:35,388 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24258 transitions. [2022-02-10 22:24:35,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:35,398 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:35,398 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:35,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-02-10 22:24:35,398 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:35,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:35,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1509597844, now seen corresponding path program 131 times [2022-02-10 22:24:35,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:35,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227669222] [2022-02-10 22:24:35,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:35,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:35,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:35,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:35,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227669222] [2022-02-10 22:24:35,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227669222] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:35,521 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:35,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:35,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390881188] [2022-02-10 22:24:35,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:35,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:35,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:35,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:35,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:35,522 INFO L87 Difference]: Start difference. First operand 8980 states and 24258 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:36,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:36,050 INFO L93 Difference]: Finished difference Result 12154 states and 32785 transitions. [2022-02-10 22:24:36,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:24:36,050 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:36,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:36,065 INFO L225 Difference]: With dead ends: 12154 [2022-02-10 22:24:36,065 INFO L226 Difference]: Without dead ends: 11669 [2022-02-10 22:24:36,065 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:24:36,065 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 235 mSDsluCounter, 2491 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:36,065 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2744 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:24:36,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11669 states. [2022-02-10 22:24:36,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11669 to 8992. [2022-02-10 22:24:36,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:36,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-02-10 22:24:36,180 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-02-10 22:24:36,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:36,180 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-02-10 22:24:36,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:36,180 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-02-10 22:24:36,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:36,190 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:36,190 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:36,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-02-10 22:24:36,190 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:36,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:36,190 INFO L85 PathProgramCache]: Analyzing trace with hash -827977190, now seen corresponding path program 132 times [2022-02-10 22:24:36,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:36,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984296180] [2022-02-10 22:24:36,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:36,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:36,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:36,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:36,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984296180] [2022-02-10 22:24:36,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984296180] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:36,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:36,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:36,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705225337] [2022-02-10 22:24:36,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:36,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:36,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:36,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:36,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:36,324 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:36,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:36,802 INFO L93 Difference]: Finished difference Result 12112 states and 32674 transitions. [2022-02-10 22:24:36,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:36,803 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:36,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:36,819 INFO L225 Difference]: With dead ends: 12112 [2022-02-10 22:24:36,819 INFO L226 Difference]: Without dead ends: 11626 [2022-02-10 22:24:36,820 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=1084, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:24:36,820 INFO L934 BasicCegarLoop]: 306 mSDtfsCounter, 225 mSDsluCounter, 3006 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:36,820 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 3260 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:36,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11626 states. [2022-02-10 22:24:36,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11626 to 8988. [2022-02-10 22:24:36,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:36,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-02-10 22:24:36,944 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-02-10 22:24:36,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:36,944 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-02-10 22:24:36,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:36,944 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-02-10 22:24:36,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:36,955 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:36,955 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:36,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-02-10 22:24:36,956 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:36,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:36,956 INFO L85 PathProgramCache]: Analyzing trace with hash -127289634, now seen corresponding path program 133 times [2022-02-10 22:24:36,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:36,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84327288] [2022-02-10 22:24:36,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:36,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:37,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:37,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:37,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84327288] [2022-02-10 22:24:37,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84327288] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:37,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:37,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:37,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872753420] [2022-02-10 22:24:37,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:37,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:37,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:37,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:37,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:37,089 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:37,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:37,698 INFO L93 Difference]: Finished difference Result 12240 states and 33006 transitions. [2022-02-10 22:24:37,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:24:37,698 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:37,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:37,714 INFO L225 Difference]: With dead ends: 12240 [2022-02-10 22:24:37,714 INFO L226 Difference]: Without dead ends: 11714 [2022-02-10 22:24:37,715 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=449, Invalid=1443, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:24:37,715 INFO L934 BasicCegarLoop]: 312 mSDtfsCounter, 286 mSDsluCounter, 3254 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 3511 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:37,715 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 3511 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:37,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11714 states. [2022-02-10 22:24:37,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11714 to 8984. [2022-02-10 22:24:37,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:37,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-02-10 22:24:37,838 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-02-10 22:24:37,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:37,838 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-02-10 22:24:37,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:37,838 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-02-10 22:24:37,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:37,848 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:37,848 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:37,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-02-10 22:24:37,848 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:37,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:37,848 INFO L85 PathProgramCache]: Analyzing trace with hash 950398394, now seen corresponding path program 134 times [2022-02-10 22:24:37,849 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:37,849 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185716967] [2022-02-10 22:24:37,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:37,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:37,963 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:37,963 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185716967] [2022-02-10 22:24:37,963 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185716967] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:37,963 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:37,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:37,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338919460] [2022-02-10 22:24:37,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:37,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:37,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:37,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:37,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:37,963 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:38,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:38,535 INFO L93 Difference]: Finished difference Result 12242 states and 32998 transitions. [2022-02-10 22:24:38,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:24:38,535 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:38,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:38,551 INFO L225 Difference]: With dead ends: 12242 [2022-02-10 22:24:38,551 INFO L226 Difference]: Without dead ends: 11714 [2022-02-10 22:24:38,551 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=479, Invalid=1501, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:24:38,551 INFO L934 BasicCegarLoop]: 315 mSDtfsCounter, 293 mSDsluCounter, 3123 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 3366 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:38,551 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 3366 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:38,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11714 states. [2022-02-10 22:24:38,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11714 to 8988. [2022-02-10 22:24:38,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:38,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-10 22:24:38,730 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-10 22:24:38,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:38,730 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-10 22:24:38,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:38,730 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-10 22:24:38,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:38,744 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:38,745 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:38,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-02-10 22:24:38,745 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:38,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:38,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1557633948, now seen corresponding path program 135 times [2022-02-10 22:24:38,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:38,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670967500] [2022-02-10 22:24:38,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:38,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:38,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:38,871 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:38,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670967500] [2022-02-10 22:24:38,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670967500] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:38,871 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:38,871 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:38,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125377009] [2022-02-10 22:24:38,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:38,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:38,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:38,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:38,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:38,871 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:39,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:39,371 INFO L93 Difference]: Finished difference Result 12094 states and 32612 transitions. [2022-02-10 22:24:39,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:39,371 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:39,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:39,387 INFO L225 Difference]: With dead ends: 12094 [2022-02-10 22:24:39,387 INFO L226 Difference]: Without dead ends: 11609 [2022-02-10 22:24:39,388 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:24:39,388 INFO L934 BasicCegarLoop]: 308 mSDtfsCounter, 236 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:39,388 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 3279 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:39,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11609 states. [2022-02-10 22:24:39,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11609 to 8992. [2022-02-10 22:24:39,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:39,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-10 22:24:39,520 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-10 22:24:39,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:39,520 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-10 22:24:39,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:39,520 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-10 22:24:39,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:39,531 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:39,531 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:39,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-02-10 22:24:39,531 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:39,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:39,532 INFO L85 PathProgramCache]: Analyzing trace with hash -876013294, now seen corresponding path program 136 times [2022-02-10 22:24:39,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:39,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054675467] [2022-02-10 22:24:39,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:39,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:39,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:39,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:39,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054675467] [2022-02-10 22:24:39,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054675467] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:39,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:39,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:39,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113460178] [2022-02-10 22:24:39,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:39,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:39,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:39,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:39,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:39,647 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:40,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:40,109 INFO L93 Difference]: Finished difference Result 12012 states and 32391 transitions. [2022-02-10 22:24:40,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:24:40,109 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:40,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:40,127 INFO L225 Difference]: With dead ends: 12012 [2022-02-10 22:24:40,127 INFO L226 Difference]: Without dead ends: 11514 [2022-02-10 22:24:40,127 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:24:40,127 INFO L934 BasicCegarLoop]: 303 mSDtfsCounter, 220 mSDsluCounter, 2990 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 3241 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:40,128 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 3241 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:40,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2022-02-10 22:24:40,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 8976. [2022-02-10 22:24:40,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7016155988857937) internal successors, (24247), 8975 states have internal predecessors, (24247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:40,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24247 transitions. [2022-02-10 22:24:40,255 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24247 transitions. Word has length 109 [2022-02-10 22:24:40,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:40,255 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24247 transitions. [2022-02-10 22:24:40,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:40,255 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24247 transitions. [2022-02-10 22:24:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:40,265 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:40,265 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:40,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-02-10 22:24:40,266 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:40,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:40,266 INFO L85 PathProgramCache]: Analyzing trace with hash -427653532, now seen corresponding path program 137 times [2022-02-10 22:24:40,266 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:40,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908170579] [2022-02-10 22:24:40,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:40,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:40,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:40,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:40,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908170579] [2022-02-10 22:24:40,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908170579] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:40,383 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:40,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:40,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953453992] [2022-02-10 22:24:40,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:40,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:40,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:40,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:40,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:40,384 INFO L87 Difference]: Start difference. First operand 8976 states and 24247 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:40,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:40,857 INFO L93 Difference]: Finished difference Result 12030 states and 32444 transitions. [2022-02-10 22:24:40,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:24:40,857 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:40,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:40,874 INFO L225 Difference]: With dead ends: 12030 [2022-02-10 22:24:40,874 INFO L226 Difference]: Without dead ends: 11545 [2022-02-10 22:24:40,874 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:24:40,874 INFO L934 BasicCegarLoop]: 304 mSDtfsCounter, 233 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3262 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:40,875 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 3262 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:40,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11545 states. [2022-02-10 22:24:40,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11545 to 8992. [2022-02-10 22:24:40,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:40,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-02-10 22:24:40,999 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-02-10 22:24:40,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:40,999 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-02-10 22:24:40,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:40,999 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-02-10 22:24:41,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:41,009 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:41,009 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:41,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-02-10 22:24:41,009 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:41,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:41,009 INFO L85 PathProgramCache]: Analyzing trace with hash 253967122, now seen corresponding path program 138 times [2022-02-10 22:24:41,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:41,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428441971] [2022-02-10 22:24:41,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:41,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:41,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:41,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:41,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428441971] [2022-02-10 22:24:41,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428441971] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:41,148 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:41,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:41,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422350395] [2022-02-10 22:24:41,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:41,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:41,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:41,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:41,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:41,149 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:41,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:41,659 INFO L93 Difference]: Finished difference Result 11988 states and 32333 transitions. [2022-02-10 22:24:41,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:41,659 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:41,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:41,675 INFO L225 Difference]: With dead ends: 11988 [2022-02-10 22:24:41,675 INFO L226 Difference]: Without dead ends: 11502 [2022-02-10 22:24:41,675 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=327, Invalid=1079, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:24:41,676 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 221 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3255 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:41,676 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3255 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:41,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11502 states. [2022-02-10 22:24:41,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11502 to 8988. [2022-02-10 22:24:41,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:41,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-02-10 22:24:41,794 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-02-10 22:24:41,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:41,794 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-02-10 22:24:41,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:41,794 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-02-10 22:24:41,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:41,804 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:41,804 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:41,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-02-10 22:24:41,804 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:41,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:41,804 INFO L85 PathProgramCache]: Analyzing trace with hash 954654678, now seen corresponding path program 139 times [2022-02-10 22:24:41,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:41,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498445870] [2022-02-10 22:24:41,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:41,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:41,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:41,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:41,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498445870] [2022-02-10 22:24:41,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498445870] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:41,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:41,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:41,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399142629] [2022-02-10 22:24:41,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:41,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:41,925 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:41,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:41,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:41,926 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:42,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:42,513 INFO L93 Difference]: Finished difference Result 12116 states and 32665 transitions. [2022-02-10 22:24:42,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:24:42,513 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:42,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:42,530 INFO L225 Difference]: With dead ends: 12116 [2022-02-10 22:24:42,530 INFO L226 Difference]: Without dead ends: 11590 [2022-02-10 22:24:42,530 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 22:24:42,530 INFO L934 BasicCegarLoop]: 310 mSDtfsCounter, 290 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3059 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:42,530 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 3059 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:24:42,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11590 states. [2022-02-10 22:24:42,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11590 to 8984. [2022-02-10 22:24:42,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:42,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-02-10 22:24:42,682 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-02-10 22:24:42,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:42,682 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-02-10 22:24:42,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:42,682 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-02-10 22:24:42,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:42,692 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:42,692 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:42,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-02-10 22:24:42,693 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:42,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:42,693 INFO L85 PathProgramCache]: Analyzing trace with hash 2032342706, now seen corresponding path program 140 times [2022-02-10 22:24:42,693 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:42,693 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782889332] [2022-02-10 22:24:42,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:42,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:42,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:42,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:42,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782889332] [2022-02-10 22:24:42,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782889332] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:42,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:42,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:42,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770847072] [2022-02-10 22:24:42,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:42,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:42,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:42,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:42,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:42,808 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:43,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:43,407 INFO L93 Difference]: Finished difference Result 12198 states and 32877 transitions. [2022-02-10 22:24:43,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:24:43,407 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:43,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:43,425 INFO L225 Difference]: With dead ends: 12198 [2022-02-10 22:24:43,425 INFO L226 Difference]: Without dead ends: 11670 [2022-02-10 22:24:43,425 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:24:43,426 INFO L934 BasicCegarLoop]: 316 mSDtfsCounter, 282 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3537 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:43,426 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3537 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:43,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11670 states. [2022-02-10 22:24:43,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11670 to 8988. [2022-02-10 22:24:43,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:43,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-10 22:24:43,555 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-10 22:24:43,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:43,555 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-10 22:24:43,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:43,555 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-10 22:24:43,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:43,566 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:43,566 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:43,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-02-10 22:24:43,566 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:43,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:43,567 INFO L85 PathProgramCache]: Analyzing trace with hash -475689636, now seen corresponding path program 141 times [2022-02-10 22:24:43,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:43,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905969071] [2022-02-10 22:24:43,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:43,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:43,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:43,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:43,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905969071] [2022-02-10 22:24:43,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905969071] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:43,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:43,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:43,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120949198] [2022-02-10 22:24:43,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:43,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:43,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:43,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:43,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:43,683 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:44,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:44,184 INFO L93 Difference]: Finished difference Result 12034 states and 32447 transitions. [2022-02-10 22:24:44,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:44,184 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:44,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:44,200 INFO L225 Difference]: With dead ends: 12034 [2022-02-10 22:24:44,200 INFO L226 Difference]: Without dead ends: 11549 [2022-02-10 22:24:44,201 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:24:44,201 INFO L934 BasicCegarLoop]: 308 mSDtfsCounter, 231 mSDsluCounter, 3036 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 3282 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:44,201 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 3282 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:44,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11549 states. [2022-02-10 22:24:44,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11549 to 8992. [2022-02-10 22:24:44,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:44,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-10 22:24:44,324 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-10 22:24:44,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:44,325 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-10 22:24:44,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:44,325 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-10 22:24:44,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:44,335 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:44,335 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:44,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-02-10 22:24:44,335 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:44,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:44,335 INFO L85 PathProgramCache]: Analyzing trace with hash 205931018, now seen corresponding path program 142 times [2022-02-10 22:24:44,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:44,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834530595] [2022-02-10 22:24:44,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:44,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:44,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:44,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:44,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834530595] [2022-02-10 22:24:44,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834530595] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:44,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:44,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:44,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611170058] [2022-02-10 22:24:44,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:44,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:44,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:44,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:44,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:44,480 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:44,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:44,950 INFO L93 Difference]: Finished difference Result 11968 states and 32270 transitions. [2022-02-10 22:24:44,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:24:44,950 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:44,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:44,967 INFO L225 Difference]: With dead ends: 11968 [2022-02-10 22:24:44,967 INFO L226 Difference]: Without dead ends: 11474 [2022-02-10 22:24:44,967 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:24:44,967 INFO L934 BasicCegarLoop]: 303 mSDtfsCounter, 219 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3247 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:44,967 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3247 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:44,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11474 states. [2022-02-10 22:24:45,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11474 to 8980. [2022-02-10 22:24:45,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:45,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-02-10 22:24:45,098 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-02-10 22:24:45,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:45,098 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-02-10 22:24:45,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:45,098 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-02-10 22:24:45,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:45,108 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:45,108 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:45,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-02-10 22:24:45,110 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:45,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:45,110 INFO L85 PathProgramCache]: Analyzing trace with hash 528864870, now seen corresponding path program 143 times [2022-02-10 22:24:45,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:45,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108770173] [2022-02-10 22:24:45,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:45,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:45,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:45,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:45,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108770173] [2022-02-10 22:24:45,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108770173] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:45,239 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:45,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:45,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745000133] [2022-02-10 22:24:45,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:45,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:45,240 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:45,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:45,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:45,240 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:45,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:45,896 INFO L93 Difference]: Finished difference Result 12111 states and 32619 transitions. [2022-02-10 22:24:45,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-10 22:24:45,896 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:45,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:45,913 INFO L225 Difference]: With dead ends: 12111 [2022-02-10 22:24:45,913 INFO L226 Difference]: Without dead ends: 11540 [2022-02-10 22:24:45,913 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1998, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:24:45,913 INFO L934 BasicCegarLoop]: 323 mSDtfsCounter, 344 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:45,914 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 3452 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:45,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11540 states. [2022-02-10 22:24:46,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11540 to 8984. [2022-02-10 22:24:46,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:46,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-10 22:24:46,041 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-10 22:24:46,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:46,041 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-10 22:24:46,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:46,041 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-10 22:24:46,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:46,052 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:46,053 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:46,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-02-10 22:24:46,053 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:46,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:46,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1976539972, now seen corresponding path program 144 times [2022-02-10 22:24:46,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:46,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270561204] [2022-02-10 22:24:46,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:46,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:46,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:46,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:46,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270561204] [2022-02-10 22:24:46,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270561204] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:46,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:46,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:46,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943294310] [2022-02-10 22:24:46,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:46,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:46,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:46,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:46,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:46,171 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:46,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:46,780 INFO L93 Difference]: Finished difference Result 12098 states and 32598 transitions. [2022-02-10 22:24:46,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:24:46,781 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:46,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:46,797 INFO L225 Difference]: With dead ends: 12098 [2022-02-10 22:24:46,798 INFO L226 Difference]: Without dead ends: 11570 [2022-02-10 22:24:46,798 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=502, Invalid=1660, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:24:46,798 INFO L934 BasicCegarLoop]: 317 mSDtfsCounter, 290 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3391 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:46,798 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 3391 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:46,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11570 states. [2022-02-10 22:24:46,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11570 to 8988. [2022-02-10 22:24:46,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-10 22:24:46,926 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-10 22:24:46,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:46,926 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-10 22:24:46,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-10 22:24:46,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:46,936 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:46,936 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:46,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-02-10 22:24:46,936 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:46,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:46,937 INFO L85 PathProgramCache]: Analyzing trace with hash -189605018, now seen corresponding path program 145 times [2022-02-10 22:24:46,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:46,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832579530] [2022-02-10 22:24:46,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:46,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:47,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:47,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:47,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832579530] [2022-02-10 22:24:47,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832579530] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:47,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:47,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:47,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239341598] [2022-02-10 22:24:47,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:47,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:47,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:47,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:47,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:47,082 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:47,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:47,643 INFO L93 Difference]: Finished difference Result 11934 states and 32168 transitions. [2022-02-10 22:24:47,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:47,644 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:47,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:47,659 INFO L225 Difference]: With dead ends: 11934 [2022-02-10 22:24:47,659 INFO L226 Difference]: Without dead ends: 11449 [2022-02-10 22:24:47,659 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:24:47,660 INFO L934 BasicCegarLoop]: 309 mSDtfsCounter, 214 mSDsluCounter, 3220 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 3465 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:47,660 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 3465 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:47,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11449 states. [2022-02-10 22:24:47,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11449 to 8992. [2022-02-10 22:24:47,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:47,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-02-10 22:24:47,780 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-02-10 22:24:47,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:47,780 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-02-10 22:24:47,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:47,780 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-02-10 22:24:47,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:47,790 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:47,790 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:47,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-02-10 22:24:47,790 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:47,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:47,790 INFO L85 PathProgramCache]: Analyzing trace with hash 492015636, now seen corresponding path program 146 times [2022-02-10 22:24:47,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:47,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958765870] [2022-02-10 22:24:47,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:47,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:47,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:47,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:47,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958765870] [2022-02-10 22:24:47,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958765870] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:47,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:47,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:47,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381627868] [2022-02-10 22:24:47,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:47,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:47,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:47,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:47,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:47,915 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:48,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:48,354 INFO L93 Difference]: Finished difference Result 11868 states and 31991 transitions. [2022-02-10 22:24:48,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:24:48,355 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:48,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:48,371 INFO L225 Difference]: With dead ends: 11868 [2022-02-10 22:24:48,371 INFO L226 Difference]: Without dead ends: 11366 [2022-02-10 22:24:48,371 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:24:48,371 INFO L934 BasicCegarLoop]: 303 mSDtfsCounter, 212 mSDsluCounter, 3012 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3263 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:48,372 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3263 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:48,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11366 states. [2022-02-10 22:24:48,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11366 to 8972. [2022-02-10 22:24:48,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 8971 states have (on average 2.701594025192286) internal successors, (24236), 8971 states have internal predecessors, (24236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:48,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 24236 transitions. [2022-02-10 22:24:48,492 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 24236 transitions. Word has length 109 [2022-02-10 22:24:48,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:48,492 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 24236 transitions. [2022-02-10 22:24:48,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:48,492 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 24236 transitions. [2022-02-10 22:24:48,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:48,502 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:48,502 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:48,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-02-10 22:24:48,502 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:48,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:48,502 INFO L85 PathProgramCache]: Analyzing trace with hash -520821786, now seen corresponding path program 147 times [2022-02-10 22:24:48,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:48,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152537443] [2022-02-10 22:24:48,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:48,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:48,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:48,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152537443] [2022-02-10 22:24:48,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152537443] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:48,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:48,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:48,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917344344] [2022-02-10 22:24:48,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:48,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:48,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:48,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:48,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:48,630 INFO L87 Difference]: Start difference. First operand 8972 states and 24236 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:49,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:49,110 INFO L93 Difference]: Finished difference Result 11938 states and 32191 transitions. [2022-02-10 22:24:49,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:24:49,110 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:49,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:49,125 INFO L225 Difference]: With dead ends: 11938 [2022-02-10 22:24:49,125 INFO L226 Difference]: Without dead ends: 11453 [2022-02-10 22:24:49,126 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=945, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:24:49,126 INFO L934 BasicCegarLoop]: 302 mSDtfsCounter, 219 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:49,126 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3164 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:49,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11453 states. [2022-02-10 22:24:49,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11453 to 8992. [2022-02-10 22:24:49,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:49,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-02-10 22:24:49,283 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-02-10 22:24:49,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:49,283 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-02-10 22:24:49,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:49,283 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-02-10 22:24:49,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:49,293 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:49,293 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:49,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-02-10 22:24:49,293 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:49,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:49,294 INFO L85 PathProgramCache]: Analyzing trace with hash 160798868, now seen corresponding path program 148 times [2022-02-10 22:24:49,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:49,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209609001] [2022-02-10 22:24:49,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:49,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:49,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:49,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:49,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209609001] [2022-02-10 22:24:49,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209609001] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:49,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:49,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:49,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767899424] [2022-02-10 22:24:49,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:49,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:49,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:49,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:49,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:49,409 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:49,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:49,882 INFO L93 Difference]: Finished difference Result 11904 states and 32102 transitions. [2022-02-10 22:24:49,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:49,882 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:49,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:49,898 INFO L225 Difference]: With dead ends: 11904 [2022-02-10 22:24:49,899 INFO L226 Difference]: Without dead ends: 11418 [2022-02-10 22:24:49,899 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=1094, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:24:49,899 INFO L934 BasicCegarLoop]: 304 mSDtfsCounter, 212 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:49,899 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3428 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:49,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11418 states. [2022-02-10 22:24:49,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11418 to 8988. [2022-02-10 22:24:50,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:50,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-02-10 22:24:50,026 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-02-10 22:24:50,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:50,026 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-02-10 22:24:50,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:50,026 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-02-10 22:24:50,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:50,037 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:50,037 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:50,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-02-10 22:24:50,037 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:50,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:50,037 INFO L85 PathProgramCache]: Analyzing trace with hash 861486424, now seen corresponding path program 149 times [2022-02-10 22:24:50,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:50,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146527181] [2022-02-10 22:24:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:50,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:50,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:50,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:50,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146527181] [2022-02-10 22:24:50,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146527181] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:50,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:50,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:50,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883982923] [2022-02-10 22:24:50,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:50,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:50,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:50,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:50,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:50,159 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:50,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:50,785 INFO L93 Difference]: Finished difference Result 11940 states and 32197 transitions. [2022-02-10 22:24:50,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:24:50,785 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:50,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:50,802 INFO L225 Difference]: With dead ends: 11940 [2022-02-10 22:24:50,803 INFO L226 Difference]: Without dead ends: 11414 [2022-02-10 22:24:50,803 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=451, Invalid=1529, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:24:50,803 INFO L934 BasicCegarLoop]: 313 mSDtfsCounter, 268 mSDsluCounter, 3268 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 3526 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:50,803 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 3526 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:50,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11414 states. [2022-02-10 22:24:50,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11414 to 8984. [2022-02-10 22:24:50,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:50,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-02-10 22:24:50,925 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-02-10 22:24:50,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:50,925 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-02-10 22:24:50,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:50,926 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-02-10 22:24:50,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:50,936 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:50,936 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:50,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-02-10 22:24:50,936 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:50,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:50,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1282590040, now seen corresponding path program 150 times [2022-02-10 22:24:50,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:50,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243443212] [2022-02-10 22:24:50,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:50,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:51,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:51,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:51,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243443212] [2022-02-10 22:24:51,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243443212] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:51,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:51,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:51,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279188964] [2022-02-10 22:24:51,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:51,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:51,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:51,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:51,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:51,051 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:51,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:51,710 INFO L93 Difference]: Finished difference Result 12168 states and 32796 transitions. [2022-02-10 22:24:51,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:24:51,711 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:51,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:51,727 INFO L225 Difference]: With dead ends: 12168 [2022-02-10 22:24:51,727 INFO L226 Difference]: Without dead ends: 11602 [2022-02-10 22:24:51,727 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=625, Invalid=2131, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:24:51,728 INFO L934 BasicCegarLoop]: 319 mSDtfsCounter, 347 mSDsluCounter, 3141 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:51,728 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 3406 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:51,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11602 states. [2022-02-10 22:24:51,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11602 to 8980. [2022-02-10 22:24:51,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:51,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-02-10 22:24:51,850 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-02-10 22:24:51,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:51,850 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-02-10 22:24:51,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:51,851 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-02-10 22:24:51,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:51,860 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:51,861 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:51,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-02-10 22:24:51,861 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:51,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:51,861 INFO L85 PathProgramCache]: Analyzing trace with hash 509822444, now seen corresponding path program 151 times [2022-02-10 22:24:51,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:51,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127681765] [2022-02-10 22:24:51,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:51,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:51,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:51,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:51,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127681765] [2022-02-10 22:24:51,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127681765] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:51,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:51,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:51,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264562592] [2022-02-10 22:24:51,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:51,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:51,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:51,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:51,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:51,981 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:52,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:52,457 INFO L93 Difference]: Finished difference Result 11914 states and 32121 transitions. [2022-02-10 22:24:52,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:24:52,457 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:52,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:52,473 INFO L225 Difference]: With dead ends: 11914 [2022-02-10 22:24:52,473 INFO L226 Difference]: Without dead ends: 11429 [2022-02-10 22:24:52,473 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1001, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:24:52,473 INFO L934 BasicCegarLoop]: 304 mSDtfsCounter, 229 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:52,473 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2745 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:24:52,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11429 states. [2022-02-10 22:24:52,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11429 to 8992. [2022-02-10 22:24:52,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:52,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-10 22:24:52,600 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-10 22:24:52,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:52,600 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-10 22:24:52,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:52,600 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-10 22:24:52,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:52,610 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:52,610 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:52,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-02-10 22:24:52,611 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:52,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:52,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1191443098, now seen corresponding path program 152 times [2022-02-10 22:24:52,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:52,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439658711] [2022-02-10 22:24:52,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:52,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:52,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:52,727 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:52,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439658711] [2022-02-10 22:24:52,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439658711] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:52,728 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:52,728 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:52,728 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479721644] [2022-02-10 22:24:52,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:52,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:52,728 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:52,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:52,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:52,728 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:53,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:53,205 INFO L93 Difference]: Finished difference Result 11872 states and 32010 transitions. [2022-02-10 22:24:53,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:53,205 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:53,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:53,221 INFO L225 Difference]: With dead ends: 11872 [2022-02-10 22:24:53,221 INFO L226 Difference]: Without dead ends: 11386 [2022-02-10 22:24:53,221 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:24:53,221 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 219 mSDsluCounter, 3003 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3256 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:53,221 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3256 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:53,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11386 states. [2022-02-10 22:24:53,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11386 to 8988. [2022-02-10 22:24:53,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:53,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-10 22:24:53,339 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-10 22:24:53,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:53,339 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-10 22:24:53,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:53,339 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-10 22:24:53,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:53,349 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:53,349 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:53,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-02-10 22:24:53,349 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:53,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:53,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1892130654, now seen corresponding path program 153 times [2022-02-10 22:24:53,350 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:53,350 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736802597] [2022-02-10 22:24:53,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:53,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:53,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:53,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:53,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736802597] [2022-02-10 22:24:53,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736802597] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:53,471 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:53,471 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:53,471 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834410687] [2022-02-10 22:24:53,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:53,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:53,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:53,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:53,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:53,472 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:54,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:54,061 INFO L93 Difference]: Finished difference Result 12040 states and 32452 transitions. [2022-02-10 22:24:54,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:24:54,062 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:54,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:54,077 INFO L225 Difference]: With dead ends: 12040 [2022-02-10 22:24:54,077 INFO L226 Difference]: Without dead ends: 11514 [2022-02-10 22:24:54,078 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:24:54,078 INFO L934 BasicCegarLoop]: 311 mSDtfsCounter, 290 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2797 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:54,078 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2797 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:24:54,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2022-02-10 22:24:54,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 8984. [2022-02-10 22:24:54,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:54,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-10 22:24:54,209 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-10 22:24:54,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:54,209 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-10 22:24:54,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:54,209 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-10 22:24:54,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:54,220 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:54,220 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:54,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-02-10 22:24:54,220 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:54,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:54,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1325148614, now seen corresponding path program 154 times [2022-02-10 22:24:54,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:54,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224694643] [2022-02-10 22:24:54,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:54,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:54,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:54,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:54,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224694643] [2022-02-10 22:24:54,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224694643] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:54,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:54,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:54,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541908384] [2022-02-10 22:24:54,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:54,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:54,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:54,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:54,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:54,340 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:54,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:54,907 INFO L93 Difference]: Finished difference Result 11958 states and 32213 transitions. [2022-02-10 22:24:54,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:24:54,907 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:54,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:54,922 INFO L225 Difference]: With dead ends: 11958 [2022-02-10 22:24:54,922 INFO L226 Difference]: Without dead ends: 11430 [2022-02-10 22:24:54,923 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:24:54,923 INFO L934 BasicCegarLoop]: 313 mSDtfsCounter, 276 mSDsluCounter, 3279 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 3518 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:54,923 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 3518 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:54,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11430 states. [2022-02-10 22:24:55,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11430 to 8988. [2022-02-10 22:24:55,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:55,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-10 22:24:55,052 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-10 22:24:55,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:55,052 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-10 22:24:55,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:55,053 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-10 22:24:55,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:55,064 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:55,064 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:55,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-02-10 22:24:55,064 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:55,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:55,064 INFO L85 PathProgramCache]: Analyzing trace with hash 461786340, now seen corresponding path program 155 times [2022-02-10 22:24:55,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:55,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831312080] [2022-02-10 22:24:55,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:55,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:55,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:55,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:55,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831312080] [2022-02-10 22:24:55,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831312080] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:55,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:55,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:55,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343740255] [2022-02-10 22:24:55,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:55,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:55,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:55,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:55,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:55,185 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:55,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:55,691 INFO L93 Difference]: Finished difference Result 11858 states and 31959 transitions. [2022-02-10 22:24:55,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:55,691 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:55,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:55,708 INFO L225 Difference]: With dead ends: 11858 [2022-02-10 22:24:55,709 INFO L226 Difference]: Without dead ends: 11373 [2022-02-10 22:24:55,709 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=349, Invalid=1057, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:24:55,709 INFO L934 BasicCegarLoop]: 307 mSDtfsCounter, 221 mSDsluCounter, 2932 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:55,709 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3180 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:55,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11373 states. [2022-02-10 22:24:55,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11373 to 8992. [2022-02-10 22:24:55,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:55,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-02-10 22:24:55,894 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-02-10 22:24:55,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:55,894 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-02-10 22:24:55,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:55,894 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-02-10 22:24:55,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:55,904 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:55,904 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:55,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-02-10 22:24:55,905 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:55,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:55,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1143406994, now seen corresponding path program 156 times [2022-02-10 22:24:55,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:55,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752810245] [2022-02-10 22:24:55,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:55,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:56,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:56,021 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:56,021 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752810245] [2022-02-10 22:24:56,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752810245] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:56,022 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:56,022 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:56,022 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653231125] [2022-02-10 22:24:56,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:56,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:56,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:56,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:56,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:56,022 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:56,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:56,471 INFO L93 Difference]: Finished difference Result 11808 states and 31826 transitions. [2022-02-10 22:24:56,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:24:56,471 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:56,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:56,490 INFO L225 Difference]: With dead ends: 11808 [2022-02-10 22:24:56,490 INFO L226 Difference]: Without dead ends: 11310 [2022-02-10 22:24:56,490 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:24:56,490 INFO L934 BasicCegarLoop]: 306 mSDtfsCounter, 212 mSDsluCounter, 3013 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3267 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:56,490 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3267 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:56,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11310 states. [2022-02-10 22:24:56,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11310 to 8976. [2022-02-10 22:24:56,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7011699164345404) internal successors, (24243), 8975 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:56,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24243 transitions. [2022-02-10 22:24:56,610 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24243 transitions. Word has length 109 [2022-02-10 22:24:56,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:56,611 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24243 transitions. [2022-02-10 22:24:56,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:56,611 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24243 transitions. [2022-02-10 22:24:56,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:56,621 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:56,621 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:56,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-02-10 22:24:56,621 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:56,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:56,621 INFO L85 PathProgramCache]: Analyzing trace with hash 957822372, now seen corresponding path program 157 times [2022-02-10 22:24:56,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:56,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059029740] [2022-02-10 22:24:56,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:56,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:56,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:56,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:56,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059029740] [2022-02-10 22:24:56,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059029740] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:56,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:56,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:56,735 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721091076] [2022-02-10 22:24:56,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:56,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:56,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:56,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:56,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:56,736 INFO L87 Difference]: Start difference. First operand 8976 states and 24243 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:57,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:57,190 INFO L93 Difference]: Finished difference Result 11750 states and 31670 transitions. [2022-02-10 22:24:57,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:24:57,191 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:57,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:57,206 INFO L225 Difference]: With dead ends: 11750 [2022-02-10 22:24:57,206 INFO L226 Difference]: Without dead ends: 11265 [2022-02-10 22:24:57,207 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:24:57,207 INFO L934 BasicCegarLoop]: 300 mSDtfsCounter, 214 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 3417 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:57,207 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 3417 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:57,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11265 states. [2022-02-10 22:24:57,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11265 to 8992. [2022-02-10 22:24:57,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:57,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-10 22:24:57,325 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-10 22:24:57,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:57,325 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-10 22:24:57,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:57,325 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-10 22:24:57,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:57,335 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:57,335 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:57,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-02-10 22:24:57,335 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:57,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:57,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1639443026, now seen corresponding path program 158 times [2022-02-10 22:24:57,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:57,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674742891] [2022-02-10 22:24:57,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:57,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:57,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:57,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674742891] [2022-02-10 22:24:57,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674742891] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:57,450 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:57,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:57,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496005518] [2022-02-10 22:24:57,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:57,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:57,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:57,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:57,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:57,450 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:57,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:57,913 INFO L93 Difference]: Finished difference Result 11720 states and 31592 transitions. [2022-02-10 22:24:57,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:57,913 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:57,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:57,929 INFO L225 Difference]: With dead ends: 11720 [2022-02-10 22:24:57,929 INFO L226 Difference]: Without dead ends: 11234 [2022-02-10 22:24:57,929 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:24:57,929 INFO L934 BasicCegarLoop]: 303 mSDtfsCounter, 217 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:57,929 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 3265 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:57,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2022-02-10 22:24:58,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 8988. [2022-02-10 22:24:58,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:58,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-10 22:24:58,056 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-10 22:24:58,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:58,056 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-10 22:24:58,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:58,056 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-10 22:24:58,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:58,066 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:58,066 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:58,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-02-10 22:24:58,066 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:58,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:58,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1954836714, now seen corresponding path program 159 times [2022-02-10 22:24:58,067 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:58,067 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18190594] [2022-02-10 22:24:58,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:58,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:58,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:58,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:58,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18190594] [2022-02-10 22:24:58,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18190594] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:58,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:58,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:58,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555692401] [2022-02-10 22:24:58,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:58,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:58,206 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:58,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:58,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:58,206 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:58,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:58,797 INFO L93 Difference]: Finished difference Result 11756 states and 31687 transitions. [2022-02-10 22:24:58,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:24:58,797 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:58,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:58,812 INFO L225 Difference]: With dead ends: 11756 [2022-02-10 22:24:58,812 INFO L226 Difference]: Without dead ends: 11230 [2022-02-10 22:24:58,813 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=441, Invalid=1539, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:24:58,813 INFO L934 BasicCegarLoop]: 312 mSDtfsCounter, 264 mSDsluCounter, 2731 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:58,813 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 2996 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:24:58,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-02-10 22:24:58,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 8984. [2022-02-10 22:24:58,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:58,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-10 22:24:58,932 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-10 22:24:58,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:58,932 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-10 22:24:58,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:58,932 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-10 22:24:58,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:58,942 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:58,942 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:58,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-02-10 22:24:58,942 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:58,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:58,943 INFO L85 PathProgramCache]: Analyzing trace with hash 196054118, now seen corresponding path program 160 times [2022-02-10 22:24:58,943 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:58,943 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245118002] [2022-02-10 22:24:58,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:58,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:59,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:59,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:59,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245118002] [2022-02-10 22:24:59,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245118002] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:59,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:59,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:24:59,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164562610] [2022-02-10 22:24:59,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:59,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:24:59,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:59,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:24:59,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:24:59,060 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:59,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:59,736 INFO L93 Difference]: Finished difference Result 11792 states and 31782 transitions. [2022-02-10 22:24:59,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:24:59,736 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:24:59,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:59,752 INFO L225 Difference]: With dead ends: 11792 [2022-02-10 22:24:59,752 INFO L226 Difference]: Without dead ends: 11226 [2022-02-10 22:24:59,753 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:24:59,753 INFO L934 BasicCegarLoop]: 321 mSDtfsCounter, 320 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 3439 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:59,753 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 3439 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:59,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11226 states. [2022-02-10 22:24:59,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11226 to 8980. [2022-02-10 22:24:59,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:59,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-02-10 22:24:59,873 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-02-10 22:24:59,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:59,873 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-02-10 22:24:59,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:59,873 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-02-10 22:24:59,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:24:59,883 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:59,883 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:59,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-02-10 22:24:59,883 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:59,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:59,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1160245466, now seen corresponding path program 161 times [2022-02-10 22:24:59,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:59,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266574447] [2022-02-10 22:24:59,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:59,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:00,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:00,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:00,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266574447] [2022-02-10 22:25:00,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266574447] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:00,032 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:00,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:00,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235173112] [2022-02-10 22:25:00,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:00,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:00,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:00,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:00,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:00,033 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:00,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:00,758 INFO L93 Difference]: Finished difference Result 11976 states and 32252 transitions. [2022-02-10 22:25:00,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-10 22:25:00,758 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:00,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:00,774 INFO L225 Difference]: With dead ends: 11976 [2022-02-10 22:25:00,774 INFO L226 Difference]: Without dead ends: 11362 [2022-02-10 22:25:00,775 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 935 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-02-10 22:25:00,775 INFO L934 BasicCegarLoop]: 324 mSDtfsCounter, 405 mSDsluCounter, 3183 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:00,775 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 3452 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:00,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11362 states. [2022-02-10 22:25:00,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11362 to 8968. [2022-02-10 22:25:00,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8968 states, 8967 states have (on average 2.7015724322515893) internal successors, (24225), 8967 states have internal predecessors, (24225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:00,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8968 states to 8968 states and 24225 transitions. [2022-02-10 22:25:00,900 INFO L78 Accepts]: Start accepts. Automaton has 8968 states and 24225 transitions. Word has length 109 [2022-02-10 22:25:00,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:00,900 INFO L470 AbstractCegarLoop]: Abstraction has 8968 states and 24225 transitions. [2022-02-10 22:25:00,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:00,900 INFO L276 IsEmpty]: Start isEmpty. Operand 8968 states and 24225 transitions. [2022-02-10 22:25:00,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:00,910 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:00,910 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:00,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-02-10 22:25:00,910 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:00,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:00,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1809823296, now seen corresponding path program 162 times [2022-02-10 22:25:00,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:00,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463352195] [2022-02-10 22:25:00,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:00,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:01,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:01,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:01,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463352195] [2022-02-10 22:25:01,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463352195] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:01,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:01,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:01,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292524659] [2022-02-10 22:25:01,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:01,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:01,054 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:01,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:01,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:01,054 INFO L87 Difference]: Start difference. First operand 8968 states and 24225 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:01,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:01,614 INFO L93 Difference]: Finished difference Result 11686 states and 31498 transitions. [2022-02-10 22:25:01,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:25:01,615 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:01,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:01,637 INFO L225 Difference]: With dead ends: 11686 [2022-02-10 22:25:01,637 INFO L226 Difference]: Without dead ends: 11201 [2022-02-10 22:25:01,638 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:25:01,638 INFO L934 BasicCegarLoop]: 303 mSDtfsCounter, 214 mSDsluCounter, 2498 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:01,638 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2749 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:01,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11201 states. [2022-02-10 22:25:01,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11201 to 8992. [2022-02-10 22:25:01,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:01,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-02-10 22:25:01,815 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-02-10 22:25:01,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:01,815 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-02-10 22:25:01,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:01,815 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-02-10 22:25:01,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:01,830 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:01,830 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:01,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-02-10 22:25:01,831 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:01,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:01,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1128202642, now seen corresponding path program 163 times [2022-02-10 22:25:01,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:01,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125919678] [2022-02-10 22:25:01,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:01,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:01,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:01,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:01,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:01,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125919678] [2022-02-10 22:25:01,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125919678] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:01,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:01,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:01,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661155434] [2022-02-10 22:25:01,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:01,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:01,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:01,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:01,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:01,968 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:02,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:02,486 INFO L93 Difference]: Finished difference Result 11652 states and 31409 transitions. [2022-02-10 22:25:02,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:02,486 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:02,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:02,502 INFO L225 Difference]: With dead ends: 11652 [2022-02-10 22:25:02,502 INFO L226 Difference]: Without dead ends: 11166 [2022-02-10 22:25:02,502 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:25:02,502 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 204 mSDsluCounter, 3013 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:02,502 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 3266 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:02,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2022-02-10 22:25:02,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 8988. [2022-02-10 22:25:02,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:02,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-02-10 22:25:02,626 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-02-10 22:25:02,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:02,626 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-02-10 22:25:02,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:02,626 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-02-10 22:25:02,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:02,672 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:02,672 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:02,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-02-10 22:25:02,672 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:02,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:02,673 INFO L85 PathProgramCache]: Analyzing trace with hash -427515086, now seen corresponding path program 164 times [2022-02-10 22:25:02,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:02,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492670751] [2022-02-10 22:25:02,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:02,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:02,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:02,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:02,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492670751] [2022-02-10 22:25:02,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492670751] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:02,815 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:02,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:02,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084618859] [2022-02-10 22:25:02,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:02,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:02,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:02,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:02,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:02,816 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:03,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:03,486 INFO L93 Difference]: Finished difference Result 11688 states and 31504 transitions. [2022-02-10 22:25:03,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:25:03,486 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:03,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:03,501 INFO L225 Difference]: With dead ends: 11688 [2022-02-10 22:25:03,502 INFO L226 Difference]: Without dead ends: 11162 [2022-02-10 22:25:03,502 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1508, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:25:03,502 INFO L934 BasicCegarLoop]: 314 mSDtfsCounter, 262 mSDsluCounter, 2824 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:03,502 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 3089 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:03,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2022-02-10 22:25:03,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 8984. [2022-02-10 22:25:03,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:03,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-02-10 22:25:03,622 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-02-10 22:25:03,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:03,622 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-02-10 22:25:03,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:03,622 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-02-10 22:25:03,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:03,632 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:03,632 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:03,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-02-10 22:25:03,633 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:03,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:03,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1723375746, now seen corresponding path program 165 times [2022-02-10 22:25:03,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:03,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800896999] [2022-02-10 22:25:03,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:03,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:03,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:03,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:03,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800896999] [2022-02-10 22:25:03,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800896999] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:03,745 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:03,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:03,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572497704] [2022-02-10 22:25:03,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:03,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:03,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:03,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:03,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:03,745 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:04,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:04,373 INFO L93 Difference]: Finished difference Result 11832 states and 31872 transitions. [2022-02-10 22:25:04,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-10 22:25:04,373 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:04,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:04,388 INFO L225 Difference]: With dead ends: 11832 [2022-02-10 22:25:04,388 INFO L226 Difference]: Without dead ends: 11266 [2022-02-10 22:25:04,389 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=614, Invalid=1936, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 22:25:04,389 INFO L934 BasicCegarLoop]: 317 mSDtfsCounter, 332 mSDsluCounter, 3122 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 3385 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:04,389 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 3385 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:04,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11266 states. [2022-02-10 22:25:04,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11266 to 8980. [2022-02-10 22:25:04,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:04,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-02-10 22:25:04,507 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-02-10 22:25:04,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:04,507 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-02-10 22:25:04,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:04,508 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-02-10 22:25:04,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:04,518 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:04,518 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:04,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-02-10 22:25:04,518 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:04,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:04,518 INFO L85 PathProgramCache]: Analyzing trace with hash -779179066, now seen corresponding path program 166 times [2022-02-10 22:25:04,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:04,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520064922] [2022-02-10 22:25:04,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:04,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:04,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:04,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:04,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520064922] [2022-02-10 22:25:04,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520064922] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:04,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:04,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:04,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046452395] [2022-02-10 22:25:04,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:04,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:04,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:04,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:04,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:04,639 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:05,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:05,140 INFO L93 Difference]: Finished difference Result 11758 states and 31692 transitions. [2022-02-10 22:25:05,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:25:05,140 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:05,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:05,157 INFO L225 Difference]: With dead ends: 11758 [2022-02-10 22:25:05,157 INFO L226 Difference]: Without dead ends: 11273 [2022-02-10 22:25:05,158 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:25:05,158 INFO L934 BasicCegarLoop]: 307 mSDtfsCounter, 221 mSDsluCounter, 3206 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3449 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:05,158 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3449 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:05,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11273 states. [2022-02-10 22:25:05,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11273 to 8992. [2022-02-10 22:25:05,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:05,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-10 22:25:05,293 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-10 22:25:05,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:05,293 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-10 22:25:05,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:05,293 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-10 22:25:05,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:05,304 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:05,304 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:05,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-02-10 22:25:05,304 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:05,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:05,304 INFO L85 PathProgramCache]: Analyzing trace with hash -97558412, now seen corresponding path program 167 times [2022-02-10 22:25:05,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:05,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740439923] [2022-02-10 22:25:05,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:05,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:05,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:05,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:05,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740439923] [2022-02-10 22:25:05,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740439923] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:05,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:05,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:05,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569298505] [2022-02-10 22:25:05,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:05,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:05,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:05,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:05,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:05,417 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:05,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:05,896 INFO L93 Difference]: Finished difference Result 11716 states and 31581 transitions. [2022-02-10 22:25:05,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:05,897 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:05,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:05,912 INFO L225 Difference]: With dead ends: 11716 [2022-02-10 22:25:05,912 INFO L226 Difference]: Without dead ends: 11230 [2022-02-10 22:25:05,913 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:25:05,913 INFO L934 BasicCegarLoop]: 308 mSDtfsCounter, 218 mSDsluCounter, 2852 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 3110 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:05,913 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 3110 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:05,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-02-10 22:25:06,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 8988. [2022-02-10 22:25:06,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:06,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-10 22:25:06,030 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-10 22:25:06,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:06,030 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-10 22:25:06,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:06,030 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-10 22:25:06,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:06,041 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:06,041 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:06,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-02-10 22:25:06,041 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:06,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:06,041 INFO L85 PathProgramCache]: Analyzing trace with hash 603129144, now seen corresponding path program 168 times [2022-02-10 22:25:06,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:06,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651177637] [2022-02-10 22:25:06,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:06,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:06,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:06,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:06,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651177637] [2022-02-10 22:25:06,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651177637] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:06,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:06,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:06,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253114061] [2022-02-10 22:25:06,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:06,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:06,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:06,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:06,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:06,160 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:06,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:06,762 INFO L93 Difference]: Finished difference Result 11844 states and 31913 transitions. [2022-02-10 22:25:06,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:25:06,762 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:06,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:06,777 INFO L225 Difference]: With dead ends: 11844 [2022-02-10 22:25:06,778 INFO L226 Difference]: Without dead ends: 11318 [2022-02-10 22:25:06,778 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=460, Invalid=1432, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:25:06,778 INFO L934 BasicCegarLoop]: 313 mSDtfsCounter, 287 mSDsluCounter, 2908 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:06,778 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 3170 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:06,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11318 states. [2022-02-10 22:25:06,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11318 to 8984. [2022-02-10 22:25:06,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:06,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-10 22:25:06,898 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-10 22:25:06,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:06,898 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-10 22:25:06,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:06,898 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-10 22:25:06,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:06,908 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:06,908 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:06,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-02-10 22:25:06,909 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:06,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:06,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1680817172, now seen corresponding path program 169 times [2022-02-10 22:25:06,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:06,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957527308] [2022-02-10 22:25:06,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:06,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:07,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:07,026 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:07,026 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957527308] [2022-02-10 22:25:07,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957527308] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:07,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:07,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:07,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339089732] [2022-02-10 22:25:07,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:07,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:07,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:07,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:07,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:07,027 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:07,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:07,647 INFO L93 Difference]: Finished difference Result 11846 states and 31905 transitions. [2022-02-10 22:25:07,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:25:07,648 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:07,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:07,663 INFO L225 Difference]: With dead ends: 11846 [2022-02-10 22:25:07,663 INFO L226 Difference]: Without dead ends: 11318 [2022-02-10 22:25:07,663 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:25:07,663 INFO L934 BasicCegarLoop]: 317 mSDtfsCounter, 274 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 3547 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:07,663 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 3547 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:07,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11318 states. [2022-02-10 22:25:07,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11318 to 8988. [2022-02-10 22:25:07,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:07,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-10 22:25:07,779 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-10 22:25:07,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:07,780 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-10 22:25:07,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:07,780 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-10 22:25:07,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:07,789 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:07,789 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:07,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-02-10 22:25:07,790 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:07,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:07,790 INFO L85 PathProgramCache]: Analyzing trace with hash -827215170, now seen corresponding path program 170 times [2022-02-10 22:25:07,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:07,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287928378] [2022-02-10 22:25:07,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:07,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:07,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:07,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:07,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287928378] [2022-02-10 22:25:07,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287928378] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:07,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:07,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:07,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116049923] [2022-02-10 22:25:07,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:07,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:07,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:07,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:07,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:07,939 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:08,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:08,430 INFO L93 Difference]: Finished difference Result 11698 states and 31519 transitions. [2022-02-10 22:25:08,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:08,430 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:08,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:08,445 INFO L225 Difference]: With dead ends: 11698 [2022-02-10 22:25:08,446 INFO L226 Difference]: Without dead ends: 11213 [2022-02-10 22:25:08,446 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:25:08,446 INFO L934 BasicCegarLoop]: 310 mSDtfsCounter, 218 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:08,446 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 2770 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:08,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11213 states. [2022-02-10 22:25:08,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11213 to 8992. [2022-02-10 22:25:08,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:08,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-02-10 22:25:08,576 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-02-10 22:25:08,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:08,576 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-02-10 22:25:08,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:08,576 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-02-10 22:25:08,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:08,586 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:08,586 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:08,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-02-10 22:25:08,586 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:08,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:08,587 INFO L85 PathProgramCache]: Analyzing trace with hash -145594516, now seen corresponding path program 171 times [2022-02-10 22:25:08,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:08,587 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274613461] [2022-02-10 22:25:08,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:08,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:08,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:08,699 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:08,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274613461] [2022-02-10 22:25:08,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274613461] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:08,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:08,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:08,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897441220] [2022-02-10 22:25:08,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:08,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:08,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:08,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:08,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:08,700 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:09,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:09,150 INFO L93 Difference]: Finished difference Result 11616 states and 31298 transitions. [2022-02-10 22:25:09,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:25:09,150 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:09,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:09,167 INFO L225 Difference]: With dead ends: 11616 [2022-02-10 22:25:09,167 INFO L226 Difference]: Without dead ends: 11118 [2022-02-10 22:25:09,168 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:25:09,168 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 202 mSDsluCounter, 3005 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:09,168 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 3258 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:09,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11118 states. [2022-02-10 22:25:09,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11118 to 8976. [2022-02-10 22:25:09,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7011699164345404) internal successors, (24243), 8975 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:09,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24243 transitions. [2022-02-10 22:25:09,306 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24243 transitions. Word has length 109 [2022-02-10 22:25:09,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:09,306 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24243 transitions. [2022-02-10 22:25:09,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:09,306 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24243 transitions. [2022-02-10 22:25:09,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:09,317 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:09,317 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:09,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-02-10 22:25:09,317 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:09,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:09,318 INFO L85 PathProgramCache]: Analyzing trace with hash 302765246, now seen corresponding path program 172 times [2022-02-10 22:25:09,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:09,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29357122] [2022-02-10 22:25:09,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:09,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:09,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:09,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:09,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29357122] [2022-02-10 22:25:09,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29357122] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:09,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:09,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:09,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351295111] [2022-02-10 22:25:09,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:09,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:09,441 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:09,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:09,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:09,442 INFO L87 Difference]: Start difference. First operand 8976 states and 24243 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:09,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:09,963 INFO L93 Difference]: Finished difference Result 11794 states and 31791 transitions. [2022-02-10 22:25:09,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:25:09,963 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:09,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:09,980 INFO L225 Difference]: With dead ends: 11794 [2022-02-10 22:25:09,980 INFO L226 Difference]: Without dead ends: 11309 [2022-02-10 22:25:09,980 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=317, Invalid=1015, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:25:09,980 INFO L934 BasicCegarLoop]: 306 mSDtfsCounter, 218 mSDsluCounter, 2941 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 3188 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:09,980 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 3188 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:09,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11309 states. [2022-02-10 22:25:10,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11309 to 8992. [2022-02-10 22:25:10,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:10,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-10 22:25:10,121 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-10 22:25:10,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:10,121 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-10 22:25:10,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:10,122 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-10 22:25:10,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:10,131 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:10,132 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:10,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-02-10 22:25:10,132 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:10,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:10,132 INFO L85 PathProgramCache]: Analyzing trace with hash 984385900, now seen corresponding path program 173 times [2022-02-10 22:25:10,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:10,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431495480] [2022-02-10 22:25:10,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:10,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:10,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:10,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:10,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431495480] [2022-02-10 22:25:10,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431495480] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:10,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:10,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:10,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755166396] [2022-02-10 22:25:10,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:10,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:10,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:10,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:10,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:10,245 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:10,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:10,742 INFO L93 Difference]: Finished difference Result 11752 states and 31680 transitions. [2022-02-10 22:25:10,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:10,742 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:10,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:10,760 INFO L225 Difference]: With dead ends: 11752 [2022-02-10 22:25:10,761 INFO L226 Difference]: Without dead ends: 11266 [2022-02-10 22:25:10,761 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:25:10,761 INFO L934 BasicCegarLoop]: 307 mSDtfsCounter, 213 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:10,761 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 3108 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:10,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11266 states. [2022-02-10 22:25:10,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11266 to 8988. [2022-02-10 22:25:10,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:10,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-10 22:25:10,906 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-10 22:25:10,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:10,906 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-10 22:25:10,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:10,906 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-10 22:25:10,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:10,918 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:10,918 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:10,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-02-10 22:25:10,918 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:10,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:10,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1685073456, now seen corresponding path program 174 times [2022-02-10 22:25:10,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:10,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647493859] [2022-02-10 22:25:10,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:10,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:11,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:11,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:11,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647493859] [2022-02-10 22:25:11,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647493859] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:11,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:11,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:11,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616018594] [2022-02-10 22:25:11,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:11,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:11,037 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:11,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:11,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:11,037 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:11,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:11,647 INFO L93 Difference]: Finished difference Result 11860 states and 31957 transitions. [2022-02-10 22:25:11,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:25:11,647 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:11,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:11,665 INFO L225 Difference]: With dead ends: 11860 [2022-02-10 22:25:11,665 INFO L226 Difference]: Without dead ends: 11334 [2022-02-10 22:25:11,666 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=449, Invalid=1357, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 22:25:11,666 INFO L934 BasicCegarLoop]: 312 mSDtfsCounter, 275 mSDsluCounter, 2989 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:11,666 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 3250 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:11,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-02-10 22:25:11,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 8984. [2022-02-10 22:25:11,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:11,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-10 22:25:11,811 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-10 22:25:11,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:11,811 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-10 22:25:11,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:11,811 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-10 22:25:11,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:11,823 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:11,823 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:11,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-02-10 22:25:11,823 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:11,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:11,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1532205812, now seen corresponding path program 175 times [2022-02-10 22:25:11,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:11,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877522863] [2022-02-10 22:25:11,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:11,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:11,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:11,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:11,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877522863] [2022-02-10 22:25:11,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877522863] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:11,943 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:11,943 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:11,943 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789037076] [2022-02-10 22:25:11,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:11,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:11,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:11,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:11,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:11,944 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:12,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:12,555 INFO L93 Difference]: Finished difference Result 11958 states and 32213 transitions. [2022-02-10 22:25:12,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:25:12,556 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:12,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:12,572 INFO L225 Difference]: With dead ends: 11958 [2022-02-10 22:25:12,572 INFO L226 Difference]: Without dead ends: 11430 [2022-02-10 22:25:12,572 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:25:12,573 INFO L934 BasicCegarLoop]: 319 mSDtfsCounter, 281 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:12,573 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 3406 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:12,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11430 states. [2022-02-10 22:25:12,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11430 to 8988. [2022-02-10 22:25:12,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:12,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-10 22:25:12,692 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-10 22:25:12,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:12,692 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-10 22:25:12,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:12,692 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-10 22:25:12,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:12,702 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:12,702 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:12,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-02-10 22:25:12,703 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:12,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:12,703 INFO L85 PathProgramCache]: Analyzing trace with hash 254729142, now seen corresponding path program 176 times [2022-02-10 22:25:12,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:12,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531636503] [2022-02-10 22:25:12,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:12,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:12,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:12,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:12,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531636503] [2022-02-10 22:25:12,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531636503] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:12,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:12,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:12,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973960945] [2022-02-10 22:25:12,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:12,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:12,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:12,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:12,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:12,844 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:13,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:13,395 INFO L93 Difference]: Finished difference Result 11794 states and 31783 transitions. [2022-02-10 22:25:13,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:13,395 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:13,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:13,411 INFO L225 Difference]: With dead ends: 11794 [2022-02-10 22:25:13,411 INFO L226 Difference]: Without dead ends: 11309 [2022-02-10 22:25:13,412 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=335, Invalid=1071, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:25:13,412 INFO L934 BasicCegarLoop]: 311 mSDtfsCounter, 222 mSDsluCounter, 2522 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:13,412 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 2781 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:13,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11309 states. [2022-02-10 22:25:13,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11309 to 8992. [2022-02-10 22:25:13,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:13,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-02-10 22:25:13,538 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-02-10 22:25:13,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:13,538 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-02-10 22:25:13,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:13,538 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-02-10 22:25:13,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:13,548 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:13,548 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:13,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-02-10 22:25:13,548 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:13,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:13,548 INFO L85 PathProgramCache]: Analyzing trace with hash 936349796, now seen corresponding path program 177 times [2022-02-10 22:25:13,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:13,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21556903] [2022-02-10 22:25:13,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:13,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:13,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:13,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:13,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21556903] [2022-02-10 22:25:13,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21556903] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:13,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:13,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:13,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933780208] [2022-02-10 22:25:13,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:13,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:13,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:13,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:13,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:13,662 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:14,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:14,115 INFO L93 Difference]: Finished difference Result 11728 states and 31606 transitions. [2022-02-10 22:25:14,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:25:14,115 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:14,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:14,132 INFO L225 Difference]: With dead ends: 11728 [2022-02-10 22:25:14,132 INFO L226 Difference]: Without dead ends: 11234 [2022-02-10 22:25:14,132 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=1017, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:25:14,132 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 210 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 3267 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:14,132 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 3267 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:14,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2022-02-10 22:25:14,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 8980. [2022-02-10 22:25:14,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:14,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-02-10 22:25:14,255 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-02-10 22:25:14,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:14,256 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-02-10 22:25:14,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:14,256 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-02-10 22:25:14,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:14,266 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:14,266 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:14,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-02-10 22:25:14,266 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:14,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:14,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1259283648, now seen corresponding path program 178 times [2022-02-10 22:25:14,266 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:14,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758838322] [2022-02-10 22:25:14,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:14,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:14,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:14,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:14,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758838322] [2022-02-10 22:25:14,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758838322] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:14,383 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:14,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:14,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120263733] [2022-02-10 22:25:14,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:14,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:14,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:14,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:14,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:14,383 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:15,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:15,051 INFO L93 Difference]: Finished difference Result 11979 states and 32252 transitions. [2022-02-10 22:25:15,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:25:15,052 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:15,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:15,068 INFO L225 Difference]: With dead ends: 11979 [2022-02-10 22:25:15,068 INFO L226 Difference]: Without dead ends: 11408 [2022-02-10 22:25:15,069 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=661, Invalid=2095, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:25:15,069 INFO L934 BasicCegarLoop]: 326 mSDtfsCounter, 346 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:15,069 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 3322 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:15,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11408 states. [2022-02-10 22:25:15,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11408 to 8984. [2022-02-10 22:25:15,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.70032283201603) internal successors, (24257), 8983 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:15,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24257 transitions. [2022-02-10 22:25:15,203 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24257 transitions. Word has length 109 [2022-02-10 22:25:15,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:15,203 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24257 transitions. [2022-02-10 22:25:15,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:15,203 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24257 transitions. [2022-02-10 22:25:15,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:15,213 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:15,213 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:15,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-02-10 22:25:15,213 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:15,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:15,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1246121194, now seen corresponding path program 179 times [2022-02-10 22:25:15,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:15,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689050424] [2022-02-10 22:25:15,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:15,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:15,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:15,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:15,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689050424] [2022-02-10 22:25:15,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689050424] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:15,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:15,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:15,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208936787] [2022-02-10 22:25:15,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:15,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:15,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:15,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:15,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:15,328 INFO L87 Difference]: Start difference. First operand 8984 states and 24257 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:15,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:15,933 INFO L93 Difference]: Finished difference Result 11862 states and 31945 transitions. [2022-02-10 22:25:15,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:25:15,933 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:15,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:15,949 INFO L225 Difference]: With dead ends: 11862 [2022-02-10 22:25:15,949 INFO L226 Difference]: Without dead ends: 11334 [2022-02-10 22:25:15,950 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=493, Invalid=1669, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:25:15,950 INFO L934 BasicCegarLoop]: 319 mSDtfsCounter, 279 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:15,950 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 3565 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:15,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-02-10 22:25:16,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 8988. [2022-02-10 22:25:16,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.6998998553466116) internal successors, (24264), 8987 states have internal predecessors, (24264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:16,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24264 transitions. [2022-02-10 22:25:16,073 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24264 transitions. Word has length 109 [2022-02-10 22:25:16,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:16,074 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24264 transitions. [2022-02-10 22:25:16,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:16,074 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24264 transitions. [2022-02-10 22:25:16,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:16,084 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:16,084 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:16,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-02-10 22:25:16,084 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:16,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:16,084 INFO L85 PathProgramCache]: Analyzing trace with hash 540813760, now seen corresponding path program 180 times [2022-02-10 22:25:16,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:16,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409843418] [2022-02-10 22:25:16,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:16,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:16,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:16,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:16,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409843418] [2022-02-10 22:25:16,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409843418] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:16,199 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:16,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:16,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729648539] [2022-02-10 22:25:16,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:16,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:16,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:16,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:16,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:16,200 INFO L87 Difference]: Start difference. First operand 8988 states and 24264 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:16,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:16,724 INFO L93 Difference]: Finished difference Result 11714 states and 31559 transitions. [2022-02-10 22:25:16,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:16,724 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:16,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:16,740 INFO L225 Difference]: With dead ends: 11714 [2022-02-10 22:25:16,740 INFO L226 Difference]: Without dead ends: 11229 [2022-02-10 22:25:16,740 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:25:16,740 INFO L934 BasicCegarLoop]: 307 mSDtfsCounter, 222 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:16,740 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 3453 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:16,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11229 states. [2022-02-10 22:25:16,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11229 to 8992. [2022-02-10 22:25:16,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.6994772550328108) internal successors, (24271), 8991 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:16,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24271 transitions. [2022-02-10 22:25:16,863 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24271 transitions. Word has length 109 [2022-02-10 22:25:16,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:16,863 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24271 transitions. [2022-02-10 22:25:16,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:16,863 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24271 transitions. [2022-02-10 22:25:16,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:16,874 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:16,874 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:16,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-02-10 22:25:16,874 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:16,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:16,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1222434414, now seen corresponding path program 181 times [2022-02-10 22:25:16,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:16,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876192430] [2022-02-10 22:25:16,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:16,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:16,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:16,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:16,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876192430] [2022-02-10 22:25:16,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876192430] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:16,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:16,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:16,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447745023] [2022-02-10 22:25:16,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:16,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:16,992 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:16,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:16,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:16,992 INFO L87 Difference]: Start difference. First operand 8992 states and 24271 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:17,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:17,426 INFO L93 Difference]: Finished difference Result 11616 states and 31294 transitions. [2022-02-10 22:25:17,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:25:17,426 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:17,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:17,441 INFO L225 Difference]: With dead ends: 11616 [2022-02-10 22:25:17,441 INFO L226 Difference]: Without dead ends: 11114 [2022-02-10 22:25:17,442 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:25:17,442 INFO L934 BasicCegarLoop]: 301 mSDtfsCounter, 201 mSDsluCounter, 2997 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 3246 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:17,442 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 3246 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:17,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11114 states. [2022-02-10 22:25:17,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11114 to 8972. [2022-02-10 22:25:17,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 8971 states have (on average 2.701148144019619) internal successors, (24232), 8971 states have internal predecessors, (24232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:17,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 24232 transitions. [2022-02-10 22:25:17,561 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 24232 transitions. Word has length 109 [2022-02-10 22:25:17,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:17,561 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 24232 transitions. [2022-02-10 22:25:17,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:17,561 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 24232 transitions. [2022-02-10 22:25:17,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:17,571 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:17,571 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:17,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-02-10 22:25:17,571 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:17,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:17,572 INFO L85 PathProgramCache]: Analyzing trace with hash -690474580, now seen corresponding path program 182 times [2022-02-10 22:25:17,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:17,572 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454792143] [2022-02-10 22:25:17,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:17,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:17,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:17,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:17,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454792143] [2022-02-10 22:25:17,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454792143] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:17,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:17,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:17,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540055214] [2022-02-10 22:25:17,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:17,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:17,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:17,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:17,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:17,688 INFO L87 Difference]: Start difference. First operand 8972 states and 24232 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:18,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:18,152 INFO L93 Difference]: Finished difference Result 11622 states and 31318 transitions. [2022-02-10 22:25:18,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:25:18,152 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:18,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:18,169 INFO L225 Difference]: With dead ends: 11622 [2022-02-10 22:25:18,169 INFO L226 Difference]: Without dead ends: 11137 [2022-02-10 22:25:18,169 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:25:18,169 INFO L934 BasicCegarLoop]: 306 mSDtfsCounter, 219 mSDsluCounter, 2618 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:18,169 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2869 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:18,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2022-02-10 22:25:18,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 8992. [2022-02-10 22:25:18,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:18,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-10 22:25:18,299 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-10 22:25:18,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:18,299 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-10 22:25:18,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:18,299 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-10 22:25:18,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:18,310 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:18,310 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:18,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-02-10 22:25:18,311 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:18,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:18,311 INFO L85 PathProgramCache]: Analyzing trace with hash -8853926, now seen corresponding path program 183 times [2022-02-10 22:25:18,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:18,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707646285] [2022-02-10 22:25:18,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:18,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:18,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:18,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:18,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707646285] [2022-02-10 22:25:18,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707646285] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:18,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:18,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:18,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549602635] [2022-02-10 22:25:18,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:18,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:18,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:18,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:18,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:18,441 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:18,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:18,984 INFO L93 Difference]: Finished difference Result 11580 states and 31207 transitions. [2022-02-10 22:25:18,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:18,984 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:18,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:18,999 INFO L225 Difference]: With dead ends: 11580 [2022-02-10 22:25:18,999 INFO L226 Difference]: Without dead ends: 11094 [2022-02-10 22:25:19,000 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:25:19,000 INFO L934 BasicCegarLoop]: 307 mSDtfsCounter, 203 mSDsluCounter, 3201 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 3454 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:19,000 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 3454 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:19,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-02-10 22:25:19,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 8988. [2022-02-10 22:25:19,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:19,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-10 22:25:19,116 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-10 22:25:19,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:19,116 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-10 22:25:19,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:19,116 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-10 22:25:19,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:19,126 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:19,127 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:19,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-02-10 22:25:19,127 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:19,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:19,127 INFO L85 PathProgramCache]: Analyzing trace with hash 691833630, now seen corresponding path program 184 times [2022-02-10 22:25:19,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:19,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386117645] [2022-02-10 22:25:19,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:19,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:19,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:19,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:19,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386117645] [2022-02-10 22:25:19,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386117645] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:19,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:19,245 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:19,245 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661087059] [2022-02-10 22:25:19,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:19,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:19,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:19,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:19,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:19,245 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:19,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:19,797 INFO L93 Difference]: Finished difference Result 11688 states and 31484 transitions. [2022-02-10 22:25:19,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:25:19,797 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:19,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:19,812 INFO L225 Difference]: With dead ends: 11688 [2022-02-10 22:25:19,812 INFO L226 Difference]: Without dead ends: 11162 [2022-02-10 22:25:19,813 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=440, Invalid=1282, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:25:19,813 INFO L934 BasicCegarLoop]: 310 mSDtfsCounter, 274 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:19,813 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 2978 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:19,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2022-02-10 22:25:19,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 8984. [2022-02-10 22:25:19,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:19,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-10 22:25:19,929 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-10 22:25:19,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:19,929 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-10 22:25:19,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:19,929 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-10 22:25:19,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:19,939 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:19,939 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:19,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-02-10 22:25:19,939 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:19,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:19,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1769521658, now seen corresponding path program 185 times [2022-02-10 22:25:19,939 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:19,939 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214208490] [2022-02-10 22:25:19,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:19,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:20,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:20,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:20,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214208490] [2022-02-10 22:25:20,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214208490] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:20,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:20,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:20,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319344694] [2022-02-10 22:25:20,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:20,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:20,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:20,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:20,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:20,077 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:20,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:20,648 INFO L93 Difference]: Finished difference Result 11786 states and 31740 transitions. [2022-02-10 22:25:20,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:25:20,649 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:20,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:20,665 INFO L225 Difference]: With dead ends: 11786 [2022-02-10 22:25:20,666 INFO L226 Difference]: Without dead ends: 11258 [2022-02-10 22:25:20,666 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:25:20,666 INFO L934 BasicCegarLoop]: 319 mSDtfsCounter, 288 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 3091 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:20,666 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 3091 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:20,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2022-02-10 22:25:20,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 8988. [2022-02-10 22:25:20,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:20,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-10 22:25:20,794 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-10 22:25:20,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:20,794 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-10 22:25:20,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:20,794 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-10 22:25:20,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:20,805 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:20,805 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:20,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-02-10 22:25:20,805 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:20,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:20,806 INFO L85 PathProgramCache]: Analyzing trace with hash -738510684, now seen corresponding path program 186 times [2022-02-10 22:25:20,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:20,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186900850] [2022-02-10 22:25:20,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:20,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:20,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:20,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:20,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186900850] [2022-02-10 22:25:20,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186900850] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:20,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:20,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:20,949 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522504293] [2022-02-10 22:25:20,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:20,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:20,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:20,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:20,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:20,949 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:21,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:21,541 INFO L93 Difference]: Finished difference Result 11622 states and 31310 transitions. [2022-02-10 22:25:21,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:21,541 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:21,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:21,556 INFO L225 Difference]: With dead ends: 11622 [2022-02-10 22:25:21,556 INFO L226 Difference]: Without dead ends: 11137 [2022-02-10 22:25:21,556 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1075, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:25:21,556 INFO L934 BasicCegarLoop]: 311 mSDtfsCounter, 226 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:21,556 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2998 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:21,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2022-02-10 22:25:21,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 8992. [2022-02-10 22:25:21,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:21,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-02-10 22:25:21,675 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-02-10 22:25:21,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:21,675 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-02-10 22:25:21,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:21,676 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-02-10 22:25:21,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:21,686 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:21,686 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:21,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-02-10 22:25:21,686 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:21,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:21,686 INFO L85 PathProgramCache]: Analyzing trace with hash -56890030, now seen corresponding path program 187 times [2022-02-10 22:25:21,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:21,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175265199] [2022-02-10 22:25:21,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:21,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:21,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:21,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:21,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175265199] [2022-02-10 22:25:21,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175265199] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:21,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:21,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:21,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889312485] [2022-02-10 22:25:21,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:21,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:21,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:21,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:21,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:21,798 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:22,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:22,254 INFO L93 Difference]: Finished difference Result 11556 states and 31133 transitions. [2022-02-10 22:25:22,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:25:22,254 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:22,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:22,270 INFO L225 Difference]: With dead ends: 11556 [2022-02-10 22:25:22,270 INFO L226 Difference]: Without dead ends: 11062 [2022-02-10 22:25:22,270 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:25:22,270 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 205 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 3275 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:22,270 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 3275 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:22,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11062 states. [2022-02-10 22:25:22,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11062 to 8980. [2022-02-10 22:25:22,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:22,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-02-10 22:25:22,390 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-02-10 22:25:22,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:22,390 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-02-10 22:25:22,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:22,390 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-02-10 22:25:22,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:22,400 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:22,400 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:22,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-02-10 22:25:22,400 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:22,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:22,401 INFO L85 PathProgramCache]: Analyzing trace with hash 266043822, now seen corresponding path program 188 times [2022-02-10 22:25:22,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:22,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050011335] [2022-02-10 22:25:22,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:22,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:22,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:22,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:22,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050011335] [2022-02-10 22:25:22,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050011335] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:22,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:22,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:22,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528659780] [2022-02-10 22:25:22,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:22,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:22,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:22,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:22,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:22,515 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:23,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:23,206 INFO L93 Difference]: Finished difference Result 11919 states and 32087 transitions. [2022-02-10 22:25:23,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:25:23,206 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:23,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:23,222 INFO L225 Difference]: With dead ends: 11919 [2022-02-10 22:25:23,222 INFO L226 Difference]: Without dead ends: 11348 [2022-02-10 22:25:23,222 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=668, Invalid=2194, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:25:23,222 INFO L934 BasicCegarLoop]: 328 mSDtfsCounter, 335 mSDsluCounter, 3422 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 3667 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:23,223 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 3667 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:23,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11348 states. [2022-02-10 22:25:23,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11348 to 8984. [2022-02-10 22:25:23,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.70032283201603) internal successors, (24257), 8983 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:23,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24257 transitions. [2022-02-10 22:25:23,374 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24257 transitions. Word has length 109 [2022-02-10 22:25:23,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:23,374 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24257 transitions. [2022-02-10 22:25:23,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:23,374 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24257 transitions. [2022-02-10 22:25:23,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:23,384 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:23,384 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:23,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-02-10 22:25:23,384 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:23,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:23,385 INFO L85 PathProgramCache]: Analyzing trace with hash 2055606276, now seen corresponding path program 189 times [2022-02-10 22:25:23,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:23,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207735125] [2022-02-10 22:25:23,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:23,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:23,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:23,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:23,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207735125] [2022-02-10 22:25:23,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207735125] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:23,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:23,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:23,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494336654] [2022-02-10 22:25:23,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:23,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:23,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:23,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:23,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:23,495 INFO L87 Difference]: Start difference. First operand 8984 states and 24257 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:24,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:24,065 INFO L93 Difference]: Finished difference Result 11794 states and 31758 transitions. [2022-02-10 22:25:24,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:25:24,066 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:24,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:24,081 INFO L225 Difference]: With dead ends: 11794 [2022-02-10 22:25:24,081 INFO L226 Difference]: Without dead ends: 11266 [2022-02-10 22:25:24,082 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=484, Invalid=1678, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:25:24,082 INFO L934 BasicCegarLoop]: 320 mSDtfsCounter, 282 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:24,082 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3103 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:24,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11266 states. [2022-02-10 22:25:24,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11266 to 8988. [2022-02-10 22:25:24,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.6998998553466116) internal successors, (24264), 8987 states have internal predecessors, (24264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:24,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24264 transitions. [2022-02-10 22:25:24,206 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24264 transitions. Word has length 109 [2022-02-10 22:25:24,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:24,206 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24264 transitions. [2022-02-10 22:25:24,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:24,206 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24264 transitions. [2022-02-10 22:25:24,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:24,216 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:24,216 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:24,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-02-10 22:25:24,216 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:24,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:24,217 INFO L85 PathProgramCache]: Analyzing trace with hash -452426066, now seen corresponding path program 190 times [2022-02-10 22:25:24,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:24,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940419147] [2022-02-10 22:25:24,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:24,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:24,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:24,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:24,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940419147] [2022-02-10 22:25:24,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940419147] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:24,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:24,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:24,331 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278510322] [2022-02-10 22:25:24,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:24,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:24,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:24,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:24,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:24,332 INFO L87 Difference]: Start difference. First operand 8988 states and 24264 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:24,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:24,805 INFO L93 Difference]: Finished difference Result 11630 states and 31328 transitions. [2022-02-10 22:25:24,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:24,806 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:24,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:24,821 INFO L225 Difference]: With dead ends: 11630 [2022-02-10 22:25:24,821 INFO L226 Difference]: Without dead ends: 11145 [2022-02-10 22:25:24,822 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1080, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:25:24,822 INFO L934 BasicCegarLoop]: 308 mSDtfsCounter, 216 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 3046 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:24,822 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 3046 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:24,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11145 states. [2022-02-10 22:25:24,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11145 to 8992. [2022-02-10 22:25:24,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.6994772550328108) internal successors, (24271), 8991 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:24,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24271 transitions. [2022-02-10 22:25:24,941 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24271 transitions. Word has length 109 [2022-02-10 22:25:24,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:24,942 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24271 transitions. [2022-02-10 22:25:24,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:24,942 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24271 transitions. [2022-02-10 22:25:24,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:24,953 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:24,953 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:24,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-02-10 22:25:24,953 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:24,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:24,953 INFO L85 PathProgramCache]: Analyzing trace with hash 229194588, now seen corresponding path program 191 times [2022-02-10 22:25:24,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:24,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033216345] [2022-02-10 22:25:24,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:24,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:25,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:25,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:25,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033216345] [2022-02-10 22:25:25,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033216345] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:25,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:25,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:25,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547420412] [2022-02-10 22:25:25,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:25,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:25,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:25,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:25,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:25,069 INFO L87 Difference]: Start difference. First operand 8992 states and 24271 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:25,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:25,509 INFO L93 Difference]: Finished difference Result 11556 states and 31129 transitions. [2022-02-10 22:25:25,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:25:25,510 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:25,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:25,524 INFO L225 Difference]: With dead ends: 11556 [2022-02-10 22:25:25,525 INFO L226 Difference]: Without dead ends: 11058 [2022-02-10 22:25:25,525 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:25:25,525 INFO L934 BasicCegarLoop]: 302 mSDtfsCounter, 201 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:25,525 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 3271 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:25,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11058 states. [2022-02-10 22:25:25,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11058 to 8976. [2022-02-10 22:25:25,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.700724233983287) internal successors, (24239), 8975 states have internal predecessors, (24239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:25,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24239 transitions. [2022-02-10 22:25:25,640 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24239 transitions. Word has length 109 [2022-02-10 22:25:25,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:25,640 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24239 transitions. [2022-02-10 22:25:25,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:25,641 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24239 transitions. [2022-02-10 22:25:25,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:25,650 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:25,650 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:25,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-02-10 22:25:25,651 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:25,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:25,651 INFO L85 PathProgramCache]: Analyzing trace with hash 903686232, now seen corresponding path program 192 times [2022-02-10 22:25:25,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:25,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932972778] [2022-02-10 22:25:25,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:25,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:25,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:25,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:25,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932972778] [2022-02-10 22:25:25,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932972778] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:25,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:25,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:25,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233550707] [2022-02-10 22:25:25,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:25,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:25,772 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:25,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:25,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:25,772 INFO L87 Difference]: Start difference. First operand 8976 states and 24239 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:26,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:26,597 INFO L93 Difference]: Finished difference Result 11747 states and 31589 transitions. [2022-02-10 22:25:26,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 22:25:26,599 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:26,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:26,617 INFO L225 Difference]: With dead ends: 11747 [2022-02-10 22:25:26,617 INFO L226 Difference]: Without dead ends: 11133 [2022-02-10 22:25:26,617 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 923 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=793, Invalid=2399, Unknown=0, NotChecked=0, Total=3192 [2022-02-10 22:25:26,618 INFO L934 BasicCegarLoop]: 330 mSDtfsCounter, 405 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:26,618 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 3512 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:26,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11133 states. [2022-02-10 22:25:26,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11133 to 8980. [2022-02-10 22:25:26,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.700300701637153) internal successors, (24246), 8979 states have internal predecessors, (24246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:26,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24246 transitions. [2022-02-10 22:25:26,738 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24246 transitions. Word has length 109 [2022-02-10 22:25:26,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:26,738 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24246 transitions. [2022-02-10 22:25:26,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:26,738 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24246 transitions. [2022-02-10 22:25:26,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:26,748 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:26,748 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:26,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-02-10 22:25:26,748 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:26,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:26,748 INFO L85 PathProgramCache]: Analyzing trace with hash -153609922, now seen corresponding path program 193 times [2022-02-10 22:25:26,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:26,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600427982] [2022-02-10 22:25:26,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:26,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:26,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:26,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:26,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600427982] [2022-02-10 22:25:26,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600427982] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:26,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:26,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:26,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584696917] [2022-02-10 22:25:26,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:26,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:26,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:26,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:26,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:26,859 INFO L87 Difference]: Start difference. First operand 8980 states and 24246 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:27,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:27,546 INFO L93 Difference]: Finished difference Result 11783 states and 31709 transitions. [2022-02-10 22:25:27,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:25:27,546 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:27,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:27,561 INFO L225 Difference]: With dead ends: 11783 [2022-02-10 22:25:27,562 INFO L226 Difference]: Without dead ends: 11212 [2022-02-10 22:25:27,562 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 807 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:25:27,562 INFO L934 BasicCegarLoop]: 318 mSDtfsCounter, 352 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 3421 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:27,562 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 3421 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:27,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11212 states. [2022-02-10 22:25:27,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11212 to 8984. [2022-02-10 22:25:27,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.699877546476678) internal successors, (24253), 8983 states have internal predecessors, (24253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:27,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24253 transitions. [2022-02-10 22:25:27,680 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24253 transitions. Word has length 109 [2022-02-10 22:25:27,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:27,680 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24253 transitions. [2022-02-10 22:25:27,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:27,680 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24253 transitions. [2022-02-10 22:25:27,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:27,690 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:27,690 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:27,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-02-10 22:25:27,691 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:27,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:27,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1635952532, now seen corresponding path program 194 times [2022-02-10 22:25:27,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:27,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485720057] [2022-02-10 22:25:27,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:27,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:27,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:27,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:27,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485720057] [2022-02-10 22:25:27,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485720057] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:27,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:27,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:27,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105394750] [2022-02-10 22:25:27,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:27,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:27,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:27,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:27,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:27,832 INFO L87 Difference]: Start difference. First operand 8984 states and 24253 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:28,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:28,521 INFO L93 Difference]: Finished difference Result 11658 states and 31380 transitions. [2022-02-10 22:25:28,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:25:28,521 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:28,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:28,537 INFO L225 Difference]: With dead ends: 11658 [2022-02-10 22:25:28,538 INFO L226 Difference]: Without dead ends: 11130 [2022-02-10 22:25:28,538 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:25:28,538 INFO L934 BasicCegarLoop]: 317 mSDtfsCounter, 270 mSDsluCounter, 2618 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:28,538 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2875 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:28,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11130 states. [2022-02-10 22:25:28,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11130 to 8988. [2022-02-10 22:25:28,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.6994547679982195) internal successors, (24260), 8987 states have internal predecessors, (24260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:28,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24260 transitions. [2022-02-10 22:25:28,672 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24260 transitions. Word has length 109 [2022-02-10 22:25:28,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:28,672 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24260 transitions. [2022-02-10 22:25:28,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:28,672 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24260 transitions. [2022-02-10 22:25:28,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:28,683 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:28,683 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:28,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-02-10 22:25:28,684 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:28,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:28,684 INFO L85 PathProgramCache]: Analyzing trace with hash -872079810, now seen corresponding path program 195 times [2022-02-10 22:25:28,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:28,684 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913445520] [2022-02-10 22:25:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:28,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:28,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:28,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:28,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913445520] [2022-02-10 22:25:28,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913445520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:28,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:28,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:28,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074551651] [2022-02-10 22:25:28,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:28,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:28,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:28,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:28,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:28,801 INFO L87 Difference]: Start difference. First operand 8988 states and 24260 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:29,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:29,283 INFO L93 Difference]: Finished difference Result 11494 states and 30950 transitions. [2022-02-10 22:25:29,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:29,283 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:29,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:29,298 INFO L225 Difference]: With dead ends: 11494 [2022-02-10 22:25:29,298 INFO L226 Difference]: Without dead ends: 11009 [2022-02-10 22:25:29,299 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=1084, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:25:29,299 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 210 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 3471 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:29,299 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 3471 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:29,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11009 states. [2022-02-10 22:25:29,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11009 to 8992. [2022-02-10 22:25:29,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.6990323656990323) internal successors, (24267), 8991 states have internal predecessors, (24267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:29,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24267 transitions. [2022-02-10 22:25:29,418 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24267 transitions. Word has length 109 [2022-02-10 22:25:29,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:29,419 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24267 transitions. [2022-02-10 22:25:29,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:29,419 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24267 transitions. [2022-02-10 22:25:29,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:29,429 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:29,429 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:29,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-02-10 22:25:29,429 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:29,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:29,429 INFO L85 PathProgramCache]: Analyzing trace with hash -190459156, now seen corresponding path program 196 times [2022-02-10 22:25:29,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:29,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885041978] [2022-02-10 22:25:29,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:29,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:29,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:29,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885041978] [2022-02-10 22:25:29,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885041978] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:29,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:29,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:29,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464681918] [2022-02-10 22:25:29,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:29,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:29,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:29,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:29,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:29,541 INFO L87 Difference]: Start difference. First operand 8992 states and 24267 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:29,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:29,937 INFO L93 Difference]: Finished difference Result 11420 states and 30751 transitions. [2022-02-10 22:25:29,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:25:29,938 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:29,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:29,953 INFO L225 Difference]: With dead ends: 11420 [2022-02-10 22:25:29,953 INFO L226 Difference]: Without dead ends: 10910 [2022-02-10 22:25:29,953 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2022-02-10 22:25:29,953 INFO L934 BasicCegarLoop]: 297 mSDtfsCounter, 200 mSDsluCounter, 2667 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:29,953 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2916 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:29,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10910 states. [2022-02-10 22:25:30,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10910 to 8964. [2022-02-10 22:25:30,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8964 states, 8963 states have (on average 2.7015508200379337) internal successors, (24214), 8963 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:30,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8964 states to 8964 states and 24214 transitions. [2022-02-10 22:25:30,120 INFO L78 Accepts]: Start accepts. Automaton has 8964 states and 24214 transitions. Word has length 109 [2022-02-10 22:25:30,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:30,120 INFO L470 AbstractCegarLoop]: Abstraction has 8964 states and 24214 transitions. [2022-02-10 22:25:30,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:30,120 INFO L276 IsEmpty]: Start isEmpty. Operand 8964 states and 24214 transitions. [2022-02-10 22:25:30,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:30,130 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:30,130 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:30,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-02-10 22:25:30,130 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:30,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:30,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1602299128, now seen corresponding path program 197 times [2022-02-10 22:25:30,130 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:30,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220896472] [2022-02-10 22:25:30,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:30,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:30,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:30,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:30,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220896472] [2022-02-10 22:25:30,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220896472] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:30,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:30,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:30,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825154974] [2022-02-10 22:25:30,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:30,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:30,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:30,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:30,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:30,266 INFO L87 Difference]: Start difference. First operand 8964 states and 24214 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:30,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:30,739 INFO L93 Difference]: Finished difference Result 11530 states and 31069 transitions. [2022-02-10 22:25:30,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:25:30,740 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:30,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:30,754 INFO L225 Difference]: With dead ends: 11530 [2022-02-10 22:25:30,755 INFO L226 Difference]: Without dead ends: 11045 [2022-02-10 22:25:30,755 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:25:30,755 INFO L934 BasicCegarLoop]: 320 mSDtfsCounter, 272 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 3413 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:30,755 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 3413 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:30,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11045 states. [2022-02-10 22:25:30,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11045 to 8996. [2022-02-10 22:25:30,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.7012784880489162) internal successors, (24298), 8995 states have internal predecessors, (24298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:30,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24298 transitions. [2022-02-10 22:25:30,879 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24298 transitions. Word has length 109 [2022-02-10 22:25:30,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:30,879 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24298 transitions. [2022-02-10 22:25:30,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:30,879 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24298 transitions. [2022-02-10 22:25:30,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:30,889 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:30,889 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:30,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-02-10 22:25:30,889 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:30,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:30,890 INFO L85 PathProgramCache]: Analyzing trace with hash -920678474, now seen corresponding path program 198 times [2022-02-10 22:25:30,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:30,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679398536] [2022-02-10 22:25:30,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:30,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:30,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:30,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:30,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679398536] [2022-02-10 22:25:30,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679398536] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:30,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:30,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:30,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449236122] [2022-02-10 22:25:30,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:30,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:30,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:30,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:31,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:31,000 INFO L87 Difference]: Start difference. First operand 8996 states and 24298 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:31,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:31,460 INFO L93 Difference]: Finished difference Result 11496 states and 30980 transitions. [2022-02-10 22:25:31,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:31,460 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:31,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:31,475 INFO L225 Difference]: With dead ends: 11496 [2022-02-10 22:25:31,475 INFO L226 Difference]: Without dead ends: 11010 [2022-02-10 22:25:31,475 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:25:31,475 INFO L934 BasicCegarLoop]: 322 mSDtfsCounter, 273 mSDsluCounter, 2946 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 3218 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:31,475 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 3218 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:31,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-02-10 22:25:31,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8992. [2022-02-10 22:25:31,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:31,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-02-10 22:25:31,591 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-02-10 22:25:31,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:31,591 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-02-10 22:25:31,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:31,592 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-02-10 22:25:31,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:31,603 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:31,603 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:31,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-02-10 22:25:31,603 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:31,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:31,604 INFO L85 PathProgramCache]: Analyzing trace with hash -219990918, now seen corresponding path program 199 times [2022-02-10 22:25:31,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:31,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858844947] [2022-02-10 22:25:31,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:31,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:31,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:31,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:31,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858844947] [2022-02-10 22:25:31,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858844947] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:31,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:31,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:31,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896264103] [2022-02-10 22:25:31,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:31,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:31,719 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:31,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:31,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:31,720 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:32,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:32,334 INFO L93 Difference]: Finished difference Result 11532 states and 31075 transitions. [2022-02-10 22:25:32,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:25:32,334 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:32,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:32,349 INFO L225 Difference]: With dead ends: 11532 [2022-02-10 22:25:32,349 INFO L226 Difference]: Without dead ends: 11006 [2022-02-10 22:25:32,349 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=482, Invalid=1588, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:25:32,349 INFO L934 BasicCegarLoop]: 331 mSDtfsCounter, 324 mSDsluCounter, 2951 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 3233 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:32,349 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 3233 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:32,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11006 states. [2022-02-10 22:25:32,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11006 to 8988. [2022-02-10 22:25:32,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:32,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-02-10 22:25:32,465 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-02-10 22:25:32,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:32,465 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-02-10 22:25:32,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:32,465 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-02-10 22:25:32,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:32,475 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:32,475 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:32,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-02-10 22:25:32,475 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:32,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:32,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1930899914, now seen corresponding path program 200 times [2022-02-10 22:25:32,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:32,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993027805] [2022-02-10 22:25:32,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:32,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:32,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:32,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:32,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993027805] [2022-02-10 22:25:32,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993027805] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:32,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:32,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:32,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799694777] [2022-02-10 22:25:32,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:32,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:32,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:32,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:32,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:32,586 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:33,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:33,228 INFO L93 Difference]: Finished difference Result 11704 states and 31520 transitions. [2022-02-10 22:25:33,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:25:33,228 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:33,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:33,244 INFO L225 Difference]: With dead ends: 11704 [2022-02-10 22:25:33,244 INFO L226 Difference]: Without dead ends: 11138 [2022-02-10 22:25:33,245 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=639, Invalid=2117, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:25:33,245 INFO L934 BasicCegarLoop]: 336 mSDtfsCounter, 401 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 3785 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:33,245 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 3785 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:33,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11138 states. [2022-02-10 22:25:33,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11138 to 8984. [2022-02-10 22:25:33,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:33,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-02-10 22:25:33,362 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-02-10 22:25:33,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:33,362 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-02-10 22:25:33,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:33,363 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-02-10 22:25:33,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:33,372 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:33,372 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:33,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-02-10 22:25:33,372 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:33,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:33,373 INFO L85 PathProgramCache]: Analyzing trace with hash -571654898, now seen corresponding path program 201 times [2022-02-10 22:25:33,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:33,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72403763] [2022-02-10 22:25:33,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:33,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:33,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:33,509 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:33,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72403763] [2022-02-10 22:25:33,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72403763] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:33,509 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:33,509 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:33,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001884700] [2022-02-10 22:25:33,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:33,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:33,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:33,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:33,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:33,510 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:34,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:34,072 INFO L93 Difference]: Finished difference Result 11606 states and 31274 transitions. [2022-02-10 22:25:34,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:25:34,072 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:34,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:34,090 INFO L225 Difference]: With dead ends: 11606 [2022-02-10 22:25:34,090 INFO L226 Difference]: Without dead ends: 11121 [2022-02-10 22:25:34,090 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=355, Invalid=1051, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:25:34,090 INFO L934 BasicCegarLoop]: 323 mSDtfsCounter, 282 mSDsluCounter, 2967 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:34,090 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3231 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:34,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11121 states. [2022-02-10 22:25:34,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11121 to 8996. [2022-02-10 22:25:34,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:34,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-02-10 22:25:34,208 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-02-10 22:25:34,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:34,208 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-02-10 22:25:34,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:34,209 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-02-10 22:25:34,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:34,218 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:34,218 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:34,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-02-10 22:25:34,219 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:34,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:34,219 INFO L85 PathProgramCache]: Analyzing trace with hash 109965756, now seen corresponding path program 202 times [2022-02-10 22:25:34,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:34,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292274025] [2022-02-10 22:25:34,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:34,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:34,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:34,328 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:34,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292274025] [2022-02-10 22:25:34,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292274025] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:34,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:34,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:34,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422154663] [2022-02-10 22:25:34,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:34,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:34,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:34,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:34,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:34,329 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:34,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:34,798 INFO L93 Difference]: Finished difference Result 11564 states and 31163 transitions. [2022-02-10 22:25:34,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:34,798 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:34,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:34,813 INFO L225 Difference]: With dead ends: 11564 [2022-02-10 22:25:34,813 INFO L226 Difference]: Without dead ends: 11078 [2022-02-10 22:25:34,813 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:25:34,813 INFO L934 BasicCegarLoop]: 324 mSDtfsCounter, 267 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 3437 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:34,813 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 3437 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:34,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11078 states. [2022-02-10 22:25:34,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11078 to 8992. [2022-02-10 22:25:34,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:34,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-10 22:25:34,930 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-10 22:25:34,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:34,930 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-10 22:25:34,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:34,930 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-10 22:25:34,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:34,940 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:34,940 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:34,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-02-10 22:25:34,940 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:34,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:34,940 INFO L85 PathProgramCache]: Analyzing trace with hash 810653312, now seen corresponding path program 203 times [2022-02-10 22:25:34,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:34,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387167820] [2022-02-10 22:25:34,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:34,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:35,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:35,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:35,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387167820] [2022-02-10 22:25:35,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387167820] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:35,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:35,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:35,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212991659] [2022-02-10 22:25:35,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:35,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:35,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:35,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:35,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:35,058 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:35,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:35,648 INFO L93 Difference]: Finished difference Result 11692 states and 31495 transitions. [2022-02-10 22:25:35,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:25:35,649 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:35,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:35,664 INFO L225 Difference]: With dead ends: 11692 [2022-02-10 22:25:35,664 INFO L226 Difference]: Without dead ends: 11166 [2022-02-10 22:25:35,664 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=469, Invalid=1511, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:25:35,664 INFO L934 BasicCegarLoop]: 330 mSDtfsCounter, 351 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 3293 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:35,664 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 3293 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:35,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2022-02-10 22:25:35,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 8988. [2022-02-10 22:25:35,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:35,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-10 22:25:35,782 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-10 22:25:35,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:35,782 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-10 22:25:35,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:35,782 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-10 22:25:35,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:35,793 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:35,793 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:35,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-02-10 22:25:35,793 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:35,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:35,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1888341340, now seen corresponding path program 204 times [2022-02-10 22:25:35,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:35,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333629642] [2022-02-10 22:25:35,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:35,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:35,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:35,905 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:35,905 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333629642] [2022-02-10 22:25:35,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333629642] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:35,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:35,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:35,905 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937637159] [2022-02-10 22:25:35,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:35,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:35,905 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:35,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:35,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:35,906 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:36,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:36,483 INFO L93 Difference]: Finished difference Result 11694 states and 31487 transitions. [2022-02-10 22:25:36,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:25:36,483 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:36,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:36,498 INFO L225 Difference]: With dead ends: 11694 [2022-02-10 22:25:36,499 INFO L226 Difference]: Without dead ends: 11166 [2022-02-10 22:25:36,499 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=518, Invalid=1552, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:25:36,499 INFO L934 BasicCegarLoop]: 333 mSDtfsCounter, 341 mSDsluCounter, 3057 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:36,499 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 3322 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:36,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2022-02-10 22:25:36,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 8992. [2022-02-10 22:25:36,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:36,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-10 22:25:36,687 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-10 22:25:36,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:36,687 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-10 22:25:36,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:36,688 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-10 22:25:36,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:36,696 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:36,696 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:36,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-02-10 22:25:36,696 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:36,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:36,697 INFO L85 PathProgramCache]: Analyzing trace with hash -619691002, now seen corresponding path program 205 times [2022-02-10 22:25:36,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:36,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410883447] [2022-02-10 22:25:36,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:36,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:36,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:36,812 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:36,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410883447] [2022-02-10 22:25:36,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410883447] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:36,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:36,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:36,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964173511] [2022-02-10 22:25:36,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:36,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:36,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:36,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:36,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:36,813 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:37,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:37,330 INFO L93 Difference]: Finished difference Result 11546 states and 31101 transitions. [2022-02-10 22:25:37,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:37,330 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:37,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:37,346 INFO L225 Difference]: With dead ends: 11546 [2022-02-10 22:25:37,347 INFO L226 Difference]: Without dead ends: 11061 [2022-02-10 22:25:37,347 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=374, Invalid=1108, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:25:37,347 INFO L934 BasicCegarLoop]: 326 mSDtfsCounter, 275 mSDsluCounter, 3382 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3645 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:37,347 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 3645 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:37,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11061 states. [2022-02-10 22:25:37,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11061 to 8996. [2022-02-10 22:25:37,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.699944413563091) internal successors, (24286), 8995 states have internal predecessors, (24286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:37,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24286 transitions. [2022-02-10 22:25:37,469 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24286 transitions. Word has length 109 [2022-02-10 22:25:37,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:37,470 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24286 transitions. [2022-02-10 22:25:37,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:37,470 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24286 transitions. [2022-02-10 22:25:37,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:37,479 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:37,479 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:37,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-02-10 22:25:37,480 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:37,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:37,480 INFO L85 PathProgramCache]: Analyzing trace with hash 61929652, now seen corresponding path program 206 times [2022-02-10 22:25:37,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:37,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228651653] [2022-02-10 22:25:37,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:37,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:37,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:37,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:37,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228651653] [2022-02-10 22:25:37,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228651653] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:37,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:37,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:37,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914542100] [2022-02-10 22:25:37,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:37,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:37,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:37,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:37,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:37,591 INFO L87 Difference]: Start difference. First operand 8996 states and 24286 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:38,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:38,030 INFO L93 Difference]: Finished difference Result 11464 states and 30880 transitions. [2022-02-10 22:25:38,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:25:38,030 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:38,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:38,046 INFO L225 Difference]: With dead ends: 11464 [2022-02-10 22:25:38,046 INFO L226 Difference]: Without dead ends: 10966 [2022-02-10 22:25:38,046 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:25:38,046 INFO L934 BasicCegarLoop]: 321 mSDtfsCounter, 262 mSDsluCounter, 3150 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:38,047 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 3419 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:38,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10966 states. [2022-02-10 22:25:38,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10966 to 8980. [2022-02-10 22:25:38,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:38,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-02-10 22:25:38,163 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-02-10 22:25:38,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:38,163 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-02-10 22:25:38,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:38,163 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-02-10 22:25:38,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:38,175 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:38,175 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:38,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-02-10 22:25:38,175 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:38,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:38,175 INFO L85 PathProgramCache]: Analyzing trace with hash 510289414, now seen corresponding path program 207 times [2022-02-10 22:25:38,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:38,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738247888] [2022-02-10 22:25:38,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:38,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:38,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:38,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:38,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738247888] [2022-02-10 22:25:38,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738247888] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:38,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:38,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:38,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001523824] [2022-02-10 22:25:38,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:38,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:38,299 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:38,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:38,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:38,301 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:38,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:38,818 INFO L93 Difference]: Finished difference Result 11482 states and 30933 transitions. [2022-02-10 22:25:38,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:25:38,819 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:38,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:38,836 INFO L225 Difference]: With dead ends: 11482 [2022-02-10 22:25:38,836 INFO L226 Difference]: Without dead ends: 10997 [2022-02-10 22:25:38,836 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:25:38,837 INFO L934 BasicCegarLoop]: 322 mSDtfsCounter, 272 mSDsluCounter, 3371 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 3630 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:38,837 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 3630 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:38,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10997 states. [2022-02-10 22:25:38,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10997 to 8996. [2022-02-10 22:25:38,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:38,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-02-10 22:25:38,960 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-02-10 22:25:38,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:38,961 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-02-10 22:25:38,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:38,961 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-02-10 22:25:38,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:38,971 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:38,971 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:38,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-02-10 22:25:38,971 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:38,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:38,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1191910068, now seen corresponding path program 208 times [2022-02-10 22:25:38,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:38,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813088540] [2022-02-10 22:25:38,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:38,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:39,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:39,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:39,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813088540] [2022-02-10 22:25:39,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813088540] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:39,082 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:39,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:39,082 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043397668] [2022-02-10 22:25:39,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:39,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:39,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:39,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:39,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:39,083 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:39,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:39,547 INFO L93 Difference]: Finished difference Result 11440 states and 30822 transitions. [2022-02-10 22:25:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:39,547 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:39,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:39,564 INFO L225 Difference]: With dead ends: 11440 [2022-02-10 22:25:39,564 INFO L226 Difference]: Without dead ends: 10954 [2022-02-10 22:25:39,564 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=348, Invalid=1134, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:25:39,564 INFO L934 BasicCegarLoop]: 323 mSDtfsCounter, 263 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 3227 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:39,564 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 3227 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:39,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10954 states. [2022-02-10 22:25:39,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10954 to 8992. [2022-02-10 22:25:39,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:39,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-10 22:25:39,685 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-10 22:25:39,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:39,686 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-10 22:25:39,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:39,686 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-10 22:25:39,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:39,696 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:39,696 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:39,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-02-10 22:25:39,696 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:39,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:39,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1892597624, now seen corresponding path program 209 times [2022-02-10 22:25:39,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:39,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822628956] [2022-02-10 22:25:39,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:39,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:39,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:39,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:39,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822628956] [2022-02-10 22:25:39,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822628956] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:39,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:39,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:39,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177437635] [2022-02-10 22:25:39,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:39,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:39,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:39,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:39,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:39,810 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:40,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:40,368 INFO L93 Difference]: Finished difference Result 11568 states and 31154 transitions. [2022-02-10 22:25:40,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:25:40,368 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:40,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:40,383 INFO L225 Difference]: With dead ends: 11568 [2022-02-10 22:25:40,383 INFO L226 Difference]: Without dead ends: 11042 [2022-02-10 22:25:40,384 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1434, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:25:40,384 INFO L934 BasicCegarLoop]: 328 mSDtfsCounter, 348 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:40,384 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 2499 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:40,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-02-10 22:25:40,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8988. [2022-02-10 22:25:40,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:40,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-10 22:25:40,506 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-10 22:25:40,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:40,506 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-10 22:25:40,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:40,506 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-10 22:25:40,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:40,516 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:40,517 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:40,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-02-10 22:25:40,517 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:40,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:40,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1324681644, now seen corresponding path program 210 times [2022-02-10 22:25:40,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:40,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291614561] [2022-02-10 22:25:40,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:40,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:40,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:40,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:40,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291614561] [2022-02-10 22:25:40,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291614561] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:40,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:40,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:40,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806803286] [2022-02-10 22:25:40,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:40,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:40,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:40,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:40,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:40,629 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:41,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:41,220 INFO L93 Difference]: Finished difference Result 11650 states and 31366 transitions. [2022-02-10 22:25:41,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:25:41,220 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:41,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:41,236 INFO L225 Difference]: With dead ends: 11650 [2022-02-10 22:25:41,236 INFO L226 Difference]: Without dead ends: 11122 [2022-02-10 22:25:41,237 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=531, Invalid=1631, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:25:41,237 INFO L934 BasicCegarLoop]: 334 mSDtfsCounter, 330 mSDsluCounter, 3274 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 3538 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:41,237 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 3538 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:41,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11122 states. [2022-02-10 22:25:41,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11122 to 8992. [2022-02-10 22:25:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:41,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-10 22:25:41,359 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-10 22:25:41,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:41,359 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-10 22:25:41,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-10 22:25:41,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:41,370 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:41,370 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:41,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-02-10 22:25:41,370 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:41,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:41,370 INFO L85 PathProgramCache]: Analyzing trace with hash 462253310, now seen corresponding path program 211 times [2022-02-10 22:25:41,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:41,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362375652] [2022-02-10 22:25:41,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:41,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:41,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:41,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:41,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362375652] [2022-02-10 22:25:41,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362375652] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:41,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:41,503 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:41,503 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151565467] [2022-02-10 22:25:41,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:41,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:41,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:41,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:41,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:41,504 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:42,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:42,059 INFO L93 Difference]: Finished difference Result 11486 states and 30936 transitions. [2022-02-10 22:25:42,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:42,060 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:42,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:42,075 INFO L225 Difference]: With dead ends: 11486 [2022-02-10 22:25:42,075 INFO L226 Difference]: Without dead ends: 11001 [2022-02-10 22:25:42,075 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=370, Invalid=1112, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:25:42,075 INFO L934 BasicCegarLoop]: 326 mSDtfsCounter, 275 mSDsluCounter, 2410 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 2687 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:42,075 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 2687 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:42,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11001 states. [2022-02-10 22:25:42,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11001 to 8996. [2022-02-10 22:25:42,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.699944413563091) internal successors, (24286), 8995 states have internal predecessors, (24286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:42,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24286 transitions. [2022-02-10 22:25:42,199 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24286 transitions. Word has length 109 [2022-02-10 22:25:42,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:42,200 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24286 transitions. [2022-02-10 22:25:42,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:42,200 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24286 transitions. [2022-02-10 22:25:42,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:42,210 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:42,210 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:42,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-02-10 22:25:42,210 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:42,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:42,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1143873964, now seen corresponding path program 212 times [2022-02-10 22:25:42,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:42,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385332702] [2022-02-10 22:25:42,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:42,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:42,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:42,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:42,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385332702] [2022-02-10 22:25:42,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385332702] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:42,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:42,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:42,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578781284] [2022-02-10 22:25:42,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:42,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:42,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:42,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:42,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:42,323 INFO L87 Difference]: Start difference. First operand 8996 states and 24286 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:42,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:42,781 INFO L93 Difference]: Finished difference Result 11420 states and 30759 transitions. [2022-02-10 22:25:42,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:25:42,782 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:42,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:42,796 INFO L225 Difference]: With dead ends: 11420 [2022-02-10 22:25:42,796 INFO L226 Difference]: Without dead ends: 10926 [2022-02-10 22:25:42,797 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:25:42,797 INFO L934 BasicCegarLoop]: 321 mSDtfsCounter, 261 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 3634 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:42,797 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 3634 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:42,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10926 states. [2022-02-10 22:25:42,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10926 to 8984. [2022-02-10 22:25:42,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:42,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-10 22:25:42,914 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-10 22:25:42,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:42,914 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-10 22:25:42,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:42,915 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-10 22:25:42,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:42,924 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:42,924 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:42,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-02-10 22:25:42,924 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:42,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:42,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1466807816, now seen corresponding path program 213 times [2022-02-10 22:25:42,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:42,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641416176] [2022-02-10 22:25:42,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:42,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:43,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:43,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:43,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641416176] [2022-02-10 22:25:43,038 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641416176] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:43,038 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:43,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:43,038 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262804176] [2022-02-10 22:25:43,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:43,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:43,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:43,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:43,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:43,038 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:43,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:43,681 INFO L93 Difference]: Finished difference Result 11535 states and 31031 transitions. [2022-02-10 22:25:43,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 22:25:43,681 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:43,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:43,696 INFO L225 Difference]: With dead ends: 11535 [2022-02-10 22:25:43,696 INFO L226 Difference]: Without dead ends: 10964 [2022-02-10 22:25:43,697 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=684, Invalid=1968, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:25:43,697 INFO L934 BasicCegarLoop]: 335 mSDtfsCounter, 399 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:43,697 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 2741 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:43,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10964 states. [2022-02-10 22:25:43,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10964 to 8988. [2022-02-10 22:25:43,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:43,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-10 22:25:43,813 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-10 22:25:43,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:43,813 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-10 22:25:43,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:43,813 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-10 22:25:43,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:43,823 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:43,823 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:43,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-02-10 22:25:43,823 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:43,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:43,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1038597026, now seen corresponding path program 214 times [2022-02-10 22:25:43,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:43,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840160262] [2022-02-10 22:25:43,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:43,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:43,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:43,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:43,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840160262] [2022-02-10 22:25:43,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840160262] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:43,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:43,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:43,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172192875] [2022-02-10 22:25:43,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:43,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:43,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:43,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:43,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:43,930 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:44,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:44,530 INFO L93 Difference]: Finished difference Result 11546 states and 31076 transitions. [2022-02-10 22:25:44,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:25:44,531 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:44,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:44,546 INFO L225 Difference]: With dead ends: 11546 [2022-02-10 22:25:44,546 INFO L226 Difference]: Without dead ends: 11018 [2022-02-10 22:25:44,547 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=545, Invalid=1711, Unknown=0, NotChecked=0, Total=2256 [2022-02-10 22:25:44,547 INFO L934 BasicCegarLoop]: 323 mSDtfsCounter, 361 mSDsluCounter, 3389 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3649 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:44,547 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 3649 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:25:44,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11018 states. [2022-02-10 22:25:44,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11018 to 8992. [2022-02-10 22:25:44,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:44,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-02-10 22:25:44,663 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-02-10 22:25:44,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:44,663 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-02-10 22:25:44,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:44,663 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-02-10 22:25:44,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:44,673 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:44,673 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:44,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-02-10 22:25:44,673 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:44,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:44,674 INFO L85 PathProgramCache]: Analyzing trace with hash 748337928, now seen corresponding path program 215 times [2022-02-10 22:25:44,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:44,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710684126] [2022-02-10 22:25:44,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:44,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:44,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:44,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:44,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710684126] [2022-02-10 22:25:44,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710684126] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:44,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:44,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:44,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117910297] [2022-02-10 22:25:44,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:44,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:44,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:44,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:44,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:44,782 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:45,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:45,262 INFO L93 Difference]: Finished difference Result 11382 states and 30646 transitions. [2022-02-10 22:25:45,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:45,262 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:45,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:45,279 INFO L225 Difference]: With dead ends: 11382 [2022-02-10 22:25:45,280 INFO L226 Difference]: Without dead ends: 10897 [2022-02-10 22:25:45,280 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:25:45,280 INFO L934 BasicCegarLoop]: 322 mSDtfsCounter, 270 mSDsluCounter, 2982 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 3245 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:45,280 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 3245 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:45,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10897 states. [2022-02-10 22:25:45,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10897 to 8996. [2022-02-10 22:25:45,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.6994997220678156) internal successors, (24282), 8995 states have internal predecessors, (24282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:45,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24282 transitions. [2022-02-10 22:25:45,395 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24282 transitions. Word has length 109 [2022-02-10 22:25:45,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:45,395 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24282 transitions. [2022-02-10 22:25:45,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:45,395 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24282 transitions. [2022-02-10 22:25:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:45,405 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:45,405 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:45,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-02-10 22:25:45,405 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:45,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:45,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1429958582, now seen corresponding path program 216 times [2022-02-10 22:25:45,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:45,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64464882] [2022-02-10 22:25:45,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:45,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:45,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:45,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:45,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64464882] [2022-02-10 22:25:45,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64464882] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:45,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:45,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:45,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834441600] [2022-02-10 22:25:45,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:45,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:45,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:45,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:45,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:45,512 INFO L87 Difference]: Start difference. First operand 8996 states and 24282 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:45,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:45,907 INFO L93 Difference]: Finished difference Result 11316 states and 30469 transitions. [2022-02-10 22:25:45,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:25:45,907 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:45,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:45,921 INFO L225 Difference]: With dead ends: 11316 [2022-02-10 22:25:45,921 INFO L226 Difference]: Without dead ends: 10814 [2022-02-10 22:25:45,921 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:25:45,922 INFO L934 BasicCegarLoop]: 316 mSDtfsCounter, 267 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:45,922 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 2791 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:45,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10814 states. [2022-02-10 22:25:46,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10814 to 8976. [2022-02-10 22:25:46,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7011699164345404) internal successors, (24243), 8975 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:46,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24243 transitions. [2022-02-10 22:25:46,041 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24243 transitions. Word has length 109 [2022-02-10 22:25:46,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:46,041 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24243 transitions. [2022-02-10 22:25:46,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:46,041 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24243 transitions. [2022-02-10 22:25:46,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:46,051 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:46,051 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:46,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-02-10 22:25:46,051 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:46,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:46,052 INFO L85 PathProgramCache]: Analyzing trace with hash 417121160, now seen corresponding path program 217 times [2022-02-10 22:25:46,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:46,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783732054] [2022-02-10 22:25:46,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:46,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:46,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:46,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:46,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783732054] [2022-02-10 22:25:46,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783732054] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:46,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:46,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:46,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676987693] [2022-02-10 22:25:46,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:46,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:46,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:46,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:46,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:46,171 INFO L87 Difference]: Start difference. First operand 8976 states and 24243 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:46,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:46,639 INFO L93 Difference]: Finished difference Result 11594 states and 31241 transitions. [2022-02-10 22:25:46,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:25:46,639 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:46,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:46,656 INFO L225 Difference]: With dead ends: 11594 [2022-02-10 22:25:46,656 INFO L226 Difference]: Without dead ends: 11109 [2022-02-10 22:25:46,657 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=990, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:25:46,657 INFO L934 BasicCegarLoop]: 312 mSDtfsCounter, 306 mSDsluCounter, 2830 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 3086 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:46,657 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 3086 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:46,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11109 states. [2022-02-10 22:25:46,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11109 to 8996. [2022-02-10 22:25:46,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:46,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-02-10 22:25:46,785 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-02-10 22:25:46,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:46,785 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-02-10 22:25:46,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:46,785 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-02-10 22:25:46,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:46,796 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:46,796 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:46,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-02-10 22:25:46,796 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:46,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:46,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1098741814, now seen corresponding path program 218 times [2022-02-10 22:25:46,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:46,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525157563] [2022-02-10 22:25:46,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:46,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:46,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:46,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:46,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525157563] [2022-02-10 22:25:46,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525157563] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:46,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:46,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:46,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089282666] [2022-02-10 22:25:46,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:46,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:46,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:46,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:46,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:46,911 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:47,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:47,384 INFO L93 Difference]: Finished difference Result 11560 states and 31152 transitions. [2022-02-10 22:25:47,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:47,384 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:47,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:47,399 INFO L225 Difference]: With dead ends: 11560 [2022-02-10 22:25:47,400 INFO L226 Difference]: Without dead ends: 11074 [2022-02-10 22:25:47,400 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:25:47,400 INFO L934 BasicCegarLoop]: 314 mSDtfsCounter, 284 mSDsluCounter, 3322 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 3582 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:47,400 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 3582 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11074 states. [2022-02-10 22:25:47,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11074 to 8992. [2022-02-10 22:25:47,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:47,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-10 22:25:47,521 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-10 22:25:47,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:47,521 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-10 22:25:47,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:47,521 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-10 22:25:47,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:47,531 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:47,531 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:47,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-02-10 22:25:47,531 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:47,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:47,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1799429370, now seen corresponding path program 219 times [2022-02-10 22:25:47,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:47,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828996600] [2022-02-10 22:25:47,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:47,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:47,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:47,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:47,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828996600] [2022-02-10 22:25:47,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828996600] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:47,648 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:47,648 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:47,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465230694] [2022-02-10 22:25:47,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:47,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:47,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:47,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:47,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:47,649 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:48,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:48,259 INFO L93 Difference]: Finished difference Result 11596 states and 31247 transitions. [2022-02-10 22:25:48,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:25:48,259 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:48,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:48,275 INFO L225 Difference]: With dead ends: 11596 [2022-02-10 22:25:48,275 INFO L226 Difference]: Without dead ends: 11070 [2022-02-10 22:25:48,275 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=471, Invalid=1599, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:25:48,275 INFO L934 BasicCegarLoop]: 323 mSDtfsCounter, 343 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:48,275 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 3680 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:48,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11070 states. [2022-02-10 22:25:48,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11070 to 8988. [2022-02-10 22:25:48,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:48,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-10 22:25:48,394 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-10 22:25:48,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:48,394 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-10 22:25:48,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:48,394 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-10 22:25:48,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:48,404 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:48,404 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:48,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-02-10 22:25:48,404 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:48,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:48,404 INFO L85 PathProgramCache]: Analyzing trace with hash -344647094, now seen corresponding path program 220 times [2022-02-10 22:25:48,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:48,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448619866] [2022-02-10 22:25:48,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:48,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:48,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:48,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:48,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448619866] [2022-02-10 22:25:48,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448619866] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:48,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:48,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:48,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738431640] [2022-02-10 22:25:48,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:48,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:48,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:48,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:48,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:48,518 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:49,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:49,170 INFO L93 Difference]: Finished difference Result 11824 states and 31846 transitions. [2022-02-10 22:25:49,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:25:49,170 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:49,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:49,185 INFO L225 Difference]: With dead ends: 11824 [2022-02-10 22:25:49,186 INFO L226 Difference]: Without dead ends: 11258 [2022-02-10 22:25:49,186 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2217, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:25:49,186 INFO L934 BasicCegarLoop]: 329 mSDtfsCounter, 422 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 3739 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:49,186 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 3739 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:49,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2022-02-10 22:25:49,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 8984. [2022-02-10 22:25:49,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:49,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-10 22:25:49,304 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-10 22:25:49,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:49,304 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-10 22:25:49,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:49,305 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-10 22:25:49,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:49,315 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:49,315 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:49,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-02-10 22:25:49,315 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:49,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:49,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1447765390, now seen corresponding path program 221 times [2022-02-10 22:25:49,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:49,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94532945] [2022-02-10 22:25:49,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:49,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:49,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:49,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:49,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94532945] [2022-02-10 22:25:49,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94532945] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:49,433 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:49,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:49,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446646298] [2022-02-10 22:25:49,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:49,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:49,434 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:49,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:49,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:49,434 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:49,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:49,954 INFO L93 Difference]: Finished difference Result 11570 states and 31171 transitions. [2022-02-10 22:25:49,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:25:49,955 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:49,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:49,968 INFO L225 Difference]: With dead ends: 11570 [2022-02-10 22:25:49,968 INFO L226 Difference]: Without dead ends: 11085 [2022-02-10 22:25:49,968 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:25:49,968 INFO L934 BasicCegarLoop]: 314 mSDtfsCounter, 291 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 3571 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:49,968 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 3571 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:49,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11085 states. [2022-02-10 22:25:50,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11085 to 8996. [2022-02-10 22:25:50,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:50,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-02-10 22:25:50,080 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-02-10 22:25:50,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:50,080 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-02-10 22:25:50,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:50,080 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-02-10 22:25:50,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:50,089 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:50,089 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:50,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-02-10 22:25:50,090 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:50,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:50,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2129386044, now seen corresponding path program 222 times [2022-02-10 22:25:50,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:50,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915710898] [2022-02-10 22:25:50,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:50,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:50,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:50,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:50,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915710898] [2022-02-10 22:25:50,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915710898] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:50,202 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:50,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:50,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105585517] [2022-02-10 22:25:50,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:50,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:50,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:50,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:50,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:50,203 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:50,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:50,667 INFO L93 Difference]: Finished difference Result 11528 states and 31060 transitions. [2022-02-10 22:25:50,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:50,668 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:50,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:50,684 INFO L225 Difference]: With dead ends: 11528 [2022-02-10 22:25:50,684 INFO L226 Difference]: Without dead ends: 11042 [2022-02-10 22:25:50,684 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=336, Invalid=1146, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:25:50,685 INFO L934 BasicCegarLoop]: 315 mSDtfsCounter, 299 mSDsluCounter, 3111 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 3374 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:50,685 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 3374 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:50,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-02-10 22:25:50,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8992. [2022-02-10 22:25:50,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:50,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-10 22:25:50,811 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-10 22:25:50,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:50,811 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-10 22:25:50,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:50,811 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-10 22:25:50,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:50,821 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:50,821 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:50,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-02-10 22:25:50,822 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:50,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:50,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1464893696, now seen corresponding path program 223 times [2022-02-10 22:25:50,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:50,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61392947] [2022-02-10 22:25:50,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:50,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:50,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:50,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:50,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61392947] [2022-02-10 22:25:50,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61392947] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:50,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:50,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:50,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222863505] [2022-02-10 22:25:50,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:50,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:50,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:50,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:50,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:50,939 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:51,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:51,526 INFO L93 Difference]: Finished difference Result 11696 states and 31502 transitions. [2022-02-10 22:25:51,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:25:51,526 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:51,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:51,541 INFO L225 Difference]: With dead ends: 11696 [2022-02-10 22:25:51,541 INFO L226 Difference]: Without dead ends: 11170 [2022-02-10 22:25:51,542 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:25:51,542 INFO L934 BasicCegarLoop]: 321 mSDtfsCounter, 360 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 3663 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:51,542 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 3663 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:51,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11170 states. [2022-02-10 22:25:51,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11170 to 8988. [2022-02-10 22:25:51,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:51,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-10 22:25:51,658 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-10 22:25:51,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:51,658 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-10 22:25:51,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:51,658 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-10 22:25:51,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:51,668 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:51,668 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:51,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-02-10 22:25:51,668 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:51,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:51,669 INFO L85 PathProgramCache]: Analyzing trace with hash -387205668, now seen corresponding path program 224 times [2022-02-10 22:25:51,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:51,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753229624] [2022-02-10 22:25:51,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:51,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:51,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:51,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:51,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753229624] [2022-02-10 22:25:51,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753229624] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:51,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:51,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:51,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040664824] [2022-02-10 22:25:51,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:51,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:51,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:51,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:51,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:51,801 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:52,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:52,390 INFO L93 Difference]: Finished difference Result 11594 states and 31208 transitions. [2022-02-10 22:25:52,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:25:52,391 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:52,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:52,407 INFO L225 Difference]: With dead ends: 11594 [2022-02-10 22:25:52,407 INFO L226 Difference]: Without dead ends: 11066 [2022-02-10 22:25:52,407 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=503, Invalid=1389, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:25:52,407 INFO L934 BasicCegarLoop]: 317 mSDtfsCounter, 375 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:52,408 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 3117 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:52,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11066 states. [2022-02-10 22:25:52,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11066 to 8992. [2022-02-10 22:25:52,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:52,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-02-10 22:25:52,526 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-02-10 22:25:52,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:52,526 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-02-10 22:25:52,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:52,527 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-02-10 22:25:52,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:52,536 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:52,536 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:52,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-02-10 22:25:52,537 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:52,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:52,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1399729286, now seen corresponding path program 225 times [2022-02-10 22:25:52,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:52,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203226914] [2022-02-10 22:25:52,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:52,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:52,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:52,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:52,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203226914] [2022-02-10 22:25:52,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203226914] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:52,649 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:52,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:52,649 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125056417] [2022-02-10 22:25:52,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:52,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:52,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:52,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:52,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:52,649 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:53,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:53,129 INFO L93 Difference]: Finished difference Result 11510 states and 30998 transitions. [2022-02-10 22:25:53,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:53,130 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:53,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:53,145 INFO L225 Difference]: With dead ends: 11510 [2022-02-10 22:25:53,145 INFO L226 Difference]: Without dead ends: 11025 [2022-02-10 22:25:53,145 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=381, Invalid=1179, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:25:53,145 INFO L934 BasicCegarLoop]: 317 mSDtfsCounter, 300 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:53,145 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 3388 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:53,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11025 states. [2022-02-10 22:25:53,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11025 to 8996. [2022-02-10 22:25:53,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.6994997220678156) internal successors, (24282), 8995 states have internal predecessors, (24282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:53,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24282 transitions. [2022-02-10 22:25:53,261 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24282 transitions. Word has length 109 [2022-02-10 22:25:53,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:53,262 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24282 transitions. [2022-02-10 22:25:53,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:53,262 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24282 transitions. [2022-02-10 22:25:53,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:53,272 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:53,272 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:53,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-02-10 22:25:53,272 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:53,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:53,272 INFO L85 PathProgramCache]: Analyzing trace with hash 2081349940, now seen corresponding path program 226 times [2022-02-10 22:25:53,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:53,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841390510] [2022-02-10 22:25:53,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:53,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:53,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:53,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:53,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841390510] [2022-02-10 22:25:53,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841390510] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:53,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:53,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:53,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921319114] [2022-02-10 22:25:53,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:53,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:53,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:53,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:53,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:53,385 INFO L87 Difference]: Start difference. First operand 8996 states and 24282 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:53,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:53,823 INFO L93 Difference]: Finished difference Result 11460 states and 30865 transitions. [2022-02-10 22:25:53,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:25:53,824 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:53,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:53,838 INFO L225 Difference]: With dead ends: 11460 [2022-02-10 22:25:53,838 INFO L226 Difference]: Without dead ends: 10962 [2022-02-10 22:25:53,839 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:25:53,839 INFO L934 BasicCegarLoop]: 317 mSDtfsCounter, 280 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:53,839 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3395 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:53,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10962 states. [2022-02-10 22:25:53,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10962 to 8980. [2022-02-10 22:25:53,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:53,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-02-10 22:25:53,954 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-02-10 22:25:53,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:53,954 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-02-10 22:25:53,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:53,954 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-02-10 22:25:53,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:53,964 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:53,964 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:53,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-02-10 22:25:53,964 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:53,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:53,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1895765318, now seen corresponding path program 227 times [2022-02-10 22:25:53,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:53,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222348730] [2022-02-10 22:25:53,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:53,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:54,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:54,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:54,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222348730] [2022-02-10 22:25:54,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222348730] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:54,082 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:54,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:54,082 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631240205] [2022-02-10 22:25:54,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:54,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:54,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:54,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:54,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:54,082 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:54,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:54,530 INFO L93 Difference]: Finished difference Result 11450 states and 30841 transitions. [2022-02-10 22:25:54,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:25:54,530 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:54,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:54,545 INFO L225 Difference]: With dead ends: 11450 [2022-02-10 22:25:54,545 INFO L226 Difference]: Without dead ends: 10965 [2022-02-10 22:25:54,546 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:25:54,546 INFO L934 BasicCegarLoop]: 310 mSDtfsCounter, 276 mSDsluCounter, 2752 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 3009 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:54,546 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 3009 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:54,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10965 states. [2022-02-10 22:25:54,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10965 to 8996. [2022-02-10 22:25:54,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:54,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-02-10 22:25:54,664 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-02-10 22:25:54,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:54,664 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-02-10 22:25:54,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:54,664 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-02-10 22:25:54,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:54,674 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:54,674 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:54,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-02-10 22:25:54,674 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:54,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:54,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1717581324, now seen corresponding path program 228 times [2022-02-10 22:25:54,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:54,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102843616] [2022-02-10 22:25:54,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:54,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:54,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:54,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:54,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102843616] [2022-02-10 22:25:54,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102843616] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:54,788 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:54,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:54,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640187562] [2022-02-10 22:25:54,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:54,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:54,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:54,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:54,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:54,788 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:55,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:55,251 INFO L93 Difference]: Finished difference Result 11424 states and 30774 transitions. [2022-02-10 22:25:55,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:55,252 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:55,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:55,268 INFO L225 Difference]: With dead ends: 11424 [2022-02-10 22:25:55,268 INFO L226 Difference]: Without dead ends: 10938 [2022-02-10 22:25:55,268 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1156, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:25:55,268 INFO L934 BasicCegarLoop]: 307 mSDtfsCounter, 289 mSDsluCounter, 3298 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 3551 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:55,268 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 3551 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:55,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10938 states. [2022-02-10 22:25:55,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10938 to 8992. [2022-02-10 22:25:55,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:55,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-10 22:25:55,391 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-10 22:25:55,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:55,391 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-10 22:25:55,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:55,391 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-10 22:25:55,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:55,401 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:55,401 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:55,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-02-10 22:25:55,401 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:55,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:55,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1016893768, now seen corresponding path program 229 times [2022-02-10 22:25:55,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:55,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701433393] [2022-02-10 22:25:55,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:55,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:55,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:55,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:55,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701433393] [2022-02-10 22:25:55,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701433393] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:55,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:55,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:55,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169857055] [2022-02-10 22:25:55,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:55,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:55,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:55,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:55,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:55,527 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:56,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:56,098 INFO L93 Difference]: Finished difference Result 11460 states and 30869 transitions. [2022-02-10 22:25:56,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:25:56,098 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:56,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:56,114 INFO L225 Difference]: With dead ends: 11460 [2022-02-10 22:25:56,114 INFO L226 Difference]: Without dead ends: 10934 [2022-02-10 22:25:56,114 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:25:56,114 INFO L934 BasicCegarLoop]: 315 mSDtfsCounter, 359 mSDsluCounter, 2606 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:56,114 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 2876 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:56,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2022-02-10 22:25:56,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 8988. [2022-02-10 22:25:56,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:56,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-10 22:25:56,268 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-10 22:25:56,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:56,268 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-10 22:25:56,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:56,269 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-10 22:25:56,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:56,278 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:56,278 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:56,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-02-10 22:25:56,279 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:56,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:56,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1133997064, now seen corresponding path program 230 times [2022-02-10 22:25:56,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:56,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092629013] [2022-02-10 22:25:56,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:56,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:56,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:56,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:56,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092629013] [2022-02-10 22:25:56,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092629013] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:56,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:56,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:56,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030027698] [2022-02-10 22:25:56,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:56,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:56,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:56,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:56,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:56,408 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:57,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:57,055 INFO L93 Difference]: Finished difference Result 11496 states and 30964 transitions. [2022-02-10 22:25:57,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:25:57,055 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:57,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:57,071 INFO L225 Difference]: With dead ends: 11496 [2022-02-10 22:25:57,071 INFO L226 Difference]: Without dead ends: 10930 [2022-02-10 22:25:57,072 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=652, Invalid=2318, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:25:57,072 INFO L934 BasicCegarLoop]: 323 mSDtfsCounter, 413 mSDsluCounter, 3227 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 3496 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:57,072 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 3496 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:57,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10930 states. [2022-02-10 22:25:57,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10930 to 8984. [2022-02-10 22:25:57,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.70032283201603) internal successors, (24257), 8983 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:57,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24257 transitions. [2022-02-10 22:25:57,193 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24257 transitions. Word has length 109 [2022-02-10 22:25:57,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:57,193 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24257 transitions. [2022-02-10 22:25:57,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:57,193 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24257 transitions. [2022-02-10 22:25:57,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:57,204 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:57,204 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:57,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-02-10 22:25:57,204 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:57,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:57,204 INFO L85 PathProgramCache]: Analyzing trace with hash 2098188412, now seen corresponding path program 231 times [2022-02-10 22:25:57,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:57,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087418153] [2022-02-10 22:25:57,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:57,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:57,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:57,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:57,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087418153] [2022-02-10 22:25:57,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087418153] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:57,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:57,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:57,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067370899] [2022-02-10 22:25:57,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:57,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:57,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:57,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:57,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:57,322 INFO L87 Difference]: Start difference. First operand 8984 states and 24257 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:58,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:58,121 INFO L93 Difference]: Finished difference Result 11424 states and 30762 transitions. [2022-02-10 22:25:58,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:25:58,121 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:58,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:58,136 INFO L225 Difference]: With dead ends: 11424 [2022-02-10 22:25:58,137 INFO L226 Difference]: Without dead ends: 10810 [2022-02-10 22:25:58,137 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=844, Invalid=2696, Unknown=0, NotChecked=0, Total=3540 [2022-02-10 22:25:58,137 INFO L934 BasicCegarLoop]: 328 mSDtfsCounter, 443 mSDsluCounter, 2655 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:58,137 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 2936 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:58,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10810 states. [2022-02-10 22:25:58,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10810 to 8972. [2022-02-10 22:25:58,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 8971 states have (on average 2.701148144019619) internal successors, (24232), 8971 states have internal predecessors, (24232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:58,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 24232 transitions. [2022-02-10 22:25:58,252 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 24232 transitions. Word has length 109 [2022-02-10 22:25:58,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:58,252 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 24232 transitions. [2022-02-10 22:25:58,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:58,252 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 24232 transitions. [2022-02-10 22:25:58,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:58,262 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:58,262 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:58,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-02-10 22:25:58,262 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:58,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:58,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1433525632, now seen corresponding path program 232 times [2022-02-10 22:25:58,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:58,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134500916] [2022-02-10 22:25:58,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:58,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:58,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:58,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:58,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134500916] [2022-02-10 22:25:58,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134500916] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:58,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:58,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:58,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857236629] [2022-02-10 22:25:58,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:58,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:58,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:58,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:58,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:58,377 INFO L87 Difference]: Start difference. First operand 8972 states and 24232 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:58,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:58,847 INFO L93 Difference]: Finished difference Result 11378 states and 30647 transitions. [2022-02-10 22:25:58,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:25:58,848 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:58,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:58,862 INFO L225 Difference]: With dead ends: 11378 [2022-02-10 22:25:58,862 INFO L226 Difference]: Without dead ends: 10893 [2022-02-10 22:25:58,862 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=348, Invalid=984, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:25:58,862 INFO L934 BasicCegarLoop]: 339 mSDtfsCounter, 360 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 3581 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:58,862 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 3581 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:58,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10893 states. [2022-02-10 22:25:58,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10893 to 9000. [2022-02-10 22:25:58,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7008556506278474) internal successors, (24305), 8999 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:58,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24305 transitions. [2022-02-10 22:25:58,978 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24305 transitions. Word has length 109 [2022-02-10 22:25:58,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:58,978 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24305 transitions. [2022-02-10 22:25:58,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:58,978 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24305 transitions. [2022-02-10 22:25:58,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:58,988 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:58,988 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:58,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-02-10 22:25:58,988 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:58,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:58,989 INFO L85 PathProgramCache]: Analyzing trace with hash 2115146286, now seen corresponding path program 233 times [2022-02-10 22:25:58,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:58,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53077255] [2022-02-10 22:25:58,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:58,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:59,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:59,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:59,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53077255] [2022-02-10 22:25:59,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53077255] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:59,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:59,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:59,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375059932] [2022-02-10 22:25:59,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:59,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:59,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:59,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:59,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:59,106 INFO L87 Difference]: Start difference. First operand 9000 states and 24305 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:59,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:59,562 INFO L93 Difference]: Finished difference Result 11344 states and 30558 transitions. [2022-02-10 22:25:59,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:25:59,562 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:25:59,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:59,577 INFO L225 Difference]: With dead ends: 11344 [2022-02-10 22:25:59,577 INFO L226 Difference]: Without dead ends: 10858 [2022-02-10 22:25:59,577 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=1155, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:25:59,578 INFO L934 BasicCegarLoop]: 341 mSDtfsCounter, 357 mSDsluCounter, 3557 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 3844 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:59,578 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 3844 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:25:59,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10858 states. [2022-02-10 22:25:59,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10858 to 8996. [2022-02-10 22:25:59,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:59,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-02-10 22:25:59,691 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-02-10 22:25:59,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:59,691 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-02-10 22:25:59,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:59,691 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-02-10 22:25:59,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:25:59,701 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:59,701 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:59,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-02-10 22:25:59,701 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:59,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:59,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1479133454, now seen corresponding path program 234 times [2022-02-10 22:25:59,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:59,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970473909] [2022-02-10 22:25:59,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:59,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:59,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:59,817 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:59,817 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970473909] [2022-02-10 22:25:59,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970473909] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:59,817 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:59,817 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:25:59,817 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476462913] [2022-02-10 22:25:59,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:59,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:25:59,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:59,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:25:59,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:25:59,818 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:00,380 INFO L93 Difference]: Finished difference Result 11380 states and 30653 transitions. [2022-02-10 22:26:00,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:26:00,380 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:00,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:00,394 INFO L225 Difference]: With dead ends: 11380 [2022-02-10 22:26:00,394 INFO L226 Difference]: Without dead ends: 10854 [2022-02-10 22:26:00,394 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=462, Invalid=1608, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:26:00,395 INFO L934 BasicCegarLoop]: 350 mSDtfsCounter, 426 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:00,395 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 3132 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:00,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2022-02-10 22:26:00,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 8992. [2022-02-10 22:26:00,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:00,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-02-10 22:26:00,510 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-02-10 22:26:00,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:00,510 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-02-10 22:26:00,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:00,510 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-02-10 22:26:00,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:00,520 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:00,520 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:00,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-02-10 22:26:00,520 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:00,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:00,521 INFO L85 PathProgramCache]: Analyzing trace with hash 671757378, now seen corresponding path program 235 times [2022-02-10 22:26:00,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:00,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745851332] [2022-02-10 22:26:00,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:00,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:00,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:00,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:00,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745851332] [2022-02-10 22:26:00,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745851332] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:00,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:00,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:00,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60655058] [2022-02-10 22:26:00,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:00,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:00,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:00,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:00,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:00,632 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:01,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:01,264 INFO L93 Difference]: Finished difference Result 11608 states and 31252 transitions. [2022-02-10 22:26:01,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:26:01,264 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:01,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:01,280 INFO L225 Difference]: With dead ends: 11608 [2022-02-10 22:26:01,280 INFO L226 Difference]: Without dead ends: 11042 [2022-02-10 22:26:01,281 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:26:01,281 INFO L934 BasicCegarLoop]: 356 mSDtfsCounter, 520 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:01,281 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 3478 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:01,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-02-10 22:26:01,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8988. [2022-02-10 22:26:01,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:01,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-02-10 22:26:01,404 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-02-10 22:26:01,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:01,404 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-02-10 22:26:01,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:01,404 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-02-10 22:26:01,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:01,414 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:01,414 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:01,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-02-10 22:26:01,414 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:01,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:01,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1830797434, now seen corresponding path program 236 times [2022-02-10 22:26:01,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:01,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307819746] [2022-02-10 22:26:01,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:01,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:01,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:01,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:01,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307819746] [2022-02-10 22:26:01,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307819746] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:01,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:01,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:01,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200741478] [2022-02-10 22:26:01,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:01,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:01,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:01,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:01,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:01,523 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:02,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:02,002 INFO L93 Difference]: Finished difference Result 11354 states and 30577 transitions. [2022-02-10 22:26:02,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:26:02,003 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:02,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:02,018 INFO L225 Difference]: With dead ends: 11354 [2022-02-10 22:26:02,018 INFO L226 Difference]: Without dead ends: 10869 [2022-02-10 22:26:02,018 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:02,019 INFO L934 BasicCegarLoop]: 341 mSDtfsCounter, 362 mSDsluCounter, 3311 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:02,019 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 3592 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:02,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10869 states. [2022-02-10 22:26:02,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10869 to 9000. [2022-02-10 22:26:02,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7004111567951994) internal successors, (24301), 8999 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:02,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24301 transitions. [2022-02-10 22:26:02,148 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24301 transitions. Word has length 109 [2022-02-10 22:26:02,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:02,149 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24301 transitions. [2022-02-10 22:26:02,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:02,149 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24301 transitions. [2022-02-10 22:26:02,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:02,159 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:02,159 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:02,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-02-10 22:26:02,159 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:02,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:02,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1149176780, now seen corresponding path program 237 times [2022-02-10 22:26:02,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:02,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047259561] [2022-02-10 22:26:02,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:02,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:02,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:02,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:02,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047259561] [2022-02-10 22:26:02,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047259561] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:02,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:02,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:02,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861554373] [2022-02-10 22:26:02,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:02,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:02,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:02,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:02,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:02,275 INFO L87 Difference]: Start difference. First operand 9000 states and 24301 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:02,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:02,718 INFO L93 Difference]: Finished difference Result 11312 states and 30466 transitions. [2022-02-10 22:26:02,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:02,718 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:02,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:02,733 INFO L225 Difference]: With dead ends: 11312 [2022-02-10 22:26:02,733 INFO L226 Difference]: Without dead ends: 10826 [2022-02-10 22:26:02,734 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:02,734 INFO L934 BasicCegarLoop]: 342 mSDtfsCounter, 356 mSDsluCounter, 3072 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 3364 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:02,734 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 3364 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:02,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10826 states. [2022-02-10 22:26:02,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10826 to 8996. [2022-02-10 22:26:02,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:02,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-02-10 22:26:02,903 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-02-10 22:26:02,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:02,903 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-02-10 22:26:02,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:02,903 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-02-10 22:26:02,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:02,912 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:02,912 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:02,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-02-10 22:26:02,912 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:02,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:02,913 INFO L85 PathProgramCache]: Analyzing trace with hash -448489224, now seen corresponding path program 238 times [2022-02-10 22:26:02,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:02,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478776655] [2022-02-10 22:26:02,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:02,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:03,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:03,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:03,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478776655] [2022-02-10 22:26:03,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478776655] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:03,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:03,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:03,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584243361] [2022-02-10 22:26:03,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:03,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:03,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:03,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:03,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:03,043 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:03,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:03,629 INFO L93 Difference]: Finished difference Result 11480 states and 30908 transitions. [2022-02-10 22:26:03,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:26:03,629 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:03,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:03,644 INFO L225 Difference]: With dead ends: 11480 [2022-02-10 22:26:03,644 INFO L226 Difference]: Without dead ends: 10954 [2022-02-10 22:26:03,645 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=450, Invalid=1530, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:26:03,645 INFO L934 BasicCegarLoop]: 348 mSDtfsCounter, 444 mSDsluCounter, 2509 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:03,645 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [444 Valid, 2814 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:03,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10954 states. [2022-02-10 22:26:03,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10954 to 8992. [2022-02-10 22:26:03,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:03,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-10 22:26:03,773 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-10 22:26:03,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:03,773 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-10 22:26:03,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:03,773 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-10 22:26:03,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:03,784 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:03,784 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:03,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-02-10 22:26:03,784 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:03,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:03,784 INFO L85 PathProgramCache]: Analyzing trace with hash 629198804, now seen corresponding path program 239 times [2022-02-10 22:26:03,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:03,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109970264] [2022-02-10 22:26:03,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:03,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:03,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:03,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:03,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109970264] [2022-02-10 22:26:03,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109970264] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:03,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:03,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:03,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293615200] [2022-02-10 22:26:03,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:03,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:03,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:03,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:03,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:03,892 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:04,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:04,410 INFO L93 Difference]: Finished difference Result 11378 states and 30614 transitions. [2022-02-10 22:26:04,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:26:04,410 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:04,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:04,426 INFO L225 Difference]: With dead ends: 11378 [2022-02-10 22:26:04,426 INFO L226 Difference]: Without dead ends: 10850 [2022-02-10 22:26:04,427 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=500, Invalid=1392, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:26:04,427 INFO L934 BasicCegarLoop]: 344 mSDtfsCounter, 424 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 3601 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:04,427 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 3601 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:04,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10850 states. [2022-02-10 22:26:04,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10850 to 8996. [2022-02-10 22:26:04,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.699944413563091) internal successors, (24286), 8995 states have internal predecessors, (24286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:04,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24286 transitions. [2022-02-10 22:26:04,543 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24286 transitions. Word has length 109 [2022-02-10 22:26:04,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:04,543 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24286 transitions. [2022-02-10 22:26:04,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:04,543 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24286 transitions. [2022-02-10 22:26:04,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:04,553 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:04,553 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:04,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-02-10 22:26:04,553 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:04,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:04,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1878833538, now seen corresponding path program 240 times [2022-02-10 22:26:04,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:04,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379634189] [2022-02-10 22:26:04,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:04,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:04,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:04,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:04,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379634189] [2022-02-10 22:26:04,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379634189] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:04,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:04,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:04,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760435032] [2022-02-10 22:26:04,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:04,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:04,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:04,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:04,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:04,669 INFO L87 Difference]: Start difference. First operand 8996 states and 24286 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:05,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:05,124 INFO L93 Difference]: Finished difference Result 11294 states and 30404 transitions. [2022-02-10 22:26:05,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:05,125 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:05,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:05,145 INFO L225 Difference]: With dead ends: 11294 [2022-02-10 22:26:05,145 INFO L226 Difference]: Without dead ends: 10809 [2022-02-10 22:26:05,145 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=386, Invalid=1096, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:05,145 INFO L934 BasicCegarLoop]: 332 mSDtfsCounter, 409 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:05,146 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2478 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:05,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2022-02-10 22:26:05,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 9000. [2022-02-10 22:26:05,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.6995221691299034) internal successors, (24293), 8999 states have internal predecessors, (24293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:05,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24293 transitions. [2022-02-10 22:26:05,263 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24293 transitions. Word has length 109 [2022-02-10 22:26:05,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:05,263 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24293 transitions. [2022-02-10 22:26:05,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:05,263 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24293 transitions. [2022-02-10 22:26:05,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:05,273 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:05,273 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:05,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-02-10 22:26:05,273 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:05,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:05,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1197212884, now seen corresponding path program 241 times [2022-02-10 22:26:05,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:05,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208896100] [2022-02-10 22:26:05,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:05,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:05,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:05,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:05,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208896100] [2022-02-10 22:26:05,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208896100] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:05,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:05,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:05,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944897437] [2022-02-10 22:26:05,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:05,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:05,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:05,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:05,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:05,380 INFO L87 Difference]: Start difference. First operand 9000 states and 24293 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:05,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:05,777 INFO L93 Difference]: Finished difference Result 11244 states and 30271 transitions. [2022-02-10 22:26:05,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:26:05,778 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:05,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:05,793 INFO L225 Difference]: With dead ends: 11244 [2022-02-10 22:26:05,794 INFO L226 Difference]: Without dead ends: 10746 [2022-02-10 22:26:05,794 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=1091, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:26:05,794 INFO L934 BasicCegarLoop]: 338 mSDtfsCounter, 362 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:05,794 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 2864 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:05,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10746 states. [2022-02-10 22:26:05,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10746 to 8984. [2022-02-10 22:26:05,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:05,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-02-10 22:26:05,908 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-02-10 22:26:05,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:05,908 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-02-10 22:26:05,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:05,908 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-02-10 22:26:05,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:05,918 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:05,918 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:05,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-02-10 22:26:05,918 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:05,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:05,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1382797506, now seen corresponding path program 242 times [2022-02-10 22:26:05,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:05,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675763671] [2022-02-10 22:26:05,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:05,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:06,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:06,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:06,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675763671] [2022-02-10 22:26:06,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675763671] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:06,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:06,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:06,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627789703] [2022-02-10 22:26:06,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:06,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:06,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:06,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:06,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:06,035 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:06,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:06,484 INFO L93 Difference]: Finished difference Result 11306 states and 30445 transitions. [2022-02-10 22:26:06,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:26:06,485 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:06,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:06,499 INFO L225 Difference]: With dead ends: 11306 [2022-02-10 22:26:06,499 INFO L226 Difference]: Without dead ends: 10821 [2022-02-10 22:26:06,499 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=928, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:26:06,499 INFO L934 BasicCegarLoop]: 323 mSDtfsCounter, 402 mSDsluCounter, 3432 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 3701 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:06,499 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 3701 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:06,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10821 states. [2022-02-10 22:26:06,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10821 to 9000. [2022-02-10 22:26:06,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7004111567951994) internal successors, (24301), 8999 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:06,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24301 transitions. [2022-02-10 22:26:06,614 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24301 transitions. Word has length 109 [2022-02-10 22:26:06,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:06,614 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24301 transitions. [2022-02-10 22:26:06,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:06,614 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24301 transitions. [2022-02-10 22:26:06,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:06,624 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:06,624 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:06,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-02-10 22:26:06,624 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:06,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:06,625 INFO L85 PathProgramCache]: Analyzing trace with hash -701176852, now seen corresponding path program 243 times [2022-02-10 22:26:06,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:06,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277479131] [2022-02-10 22:26:06,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:06,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:06,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:06,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:06,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277479131] [2022-02-10 22:26:06,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277479131] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:06,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:06,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:06,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905420819] [2022-02-10 22:26:06,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:06,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:06,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:06,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:06,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:06,737 INFO L87 Difference]: Start difference. First operand 9000 states and 24301 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:07,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:07,174 INFO L93 Difference]: Finished difference Result 11280 states and 30378 transitions. [2022-02-10 22:26:07,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:07,174 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:07,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:07,188 INFO L225 Difference]: With dead ends: 11280 [2022-02-10 22:26:07,188 INFO L226 Difference]: Without dead ends: 10794 [2022-02-10 22:26:07,189 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1161, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:07,189 INFO L934 BasicCegarLoop]: 332 mSDtfsCounter, 384 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:07,189 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 3555 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:07,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10794 states. [2022-02-10 22:26:07,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10794 to 8996. [2022-02-10 22:26:07,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:07,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-02-10 22:26:07,305 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-02-10 22:26:07,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:07,305 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-02-10 22:26:07,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:07,305 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-02-10 22:26:07,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:07,315 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:07,315 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:07,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-02-10 22:26:07,315 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:07,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:07,316 INFO L85 PathProgramCache]: Analyzing trace with hash -489296, now seen corresponding path program 244 times [2022-02-10 22:26:07,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:07,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444944101] [2022-02-10 22:26:07,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:07,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:07,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:07,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:07,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444944101] [2022-02-10 22:26:07,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444944101] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:07,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:07,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:07,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328721609] [2022-02-10 22:26:07,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:07,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:07,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:07,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:07,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:07,449 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:07,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:07,996 INFO L93 Difference]: Finished difference Result 11316 states and 30473 transitions. [2022-02-10 22:26:07,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:26:07,997 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:07,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:08,011 INFO L225 Difference]: With dead ends: 11316 [2022-02-10 22:26:08,011 INFO L226 Difference]: Without dead ends: 10790 [2022-02-10 22:26:08,011 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=451, Invalid=1619, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:26:08,012 INFO L934 BasicCegarLoop]: 341 mSDtfsCounter, 442 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:08,012 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 3043 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:08,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10790 states. [2022-02-10 22:26:08,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10790 to 8992. [2022-02-10 22:26:08,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:08,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-10 22:26:08,128 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-10 22:26:08,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:08,128 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-10 22:26:08,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:08,128 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-10 22:26:08,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:08,138 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:08,138 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:08,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-02-10 22:26:08,138 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:08,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:08,139 INFO L85 PathProgramCache]: Analyzing trace with hash -2144565760, now seen corresponding path program 245 times [2022-02-10 22:26:08,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:08,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298420812] [2022-02-10 22:26:08,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:08,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:08,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:08,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:08,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298420812] [2022-02-10 22:26:08,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298420812] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:08,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:08,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:08,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614403537] [2022-02-10 22:26:08,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:08,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:08,250 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:08,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:08,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:08,251 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:08,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:08,895 INFO L93 Difference]: Finished difference Result 11352 states and 30568 transitions. [2022-02-10 22:26:08,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:26:08,895 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:08,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:08,910 INFO L225 Difference]: With dead ends: 11352 [2022-02-10 22:26:08,910 INFO L226 Difference]: Without dead ends: 10786 [2022-02-10 22:26:08,910 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=637, Invalid=2333, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:26:08,910 INFO L934 BasicCegarLoop]: 350 mSDtfsCounter, 484 mSDsluCounter, 3685 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 3979 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:08,911 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 3979 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:08,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10786 states. [2022-02-10 22:26:09,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10786 to 8988. [2022-02-10 22:26:09,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:09,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-10 22:26:09,025 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-10 22:26:09,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:09,025 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-10 22:26:09,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:09,025 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-10 22:26:09,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:09,035 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:09,035 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:09,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-02-10 22:26:09,035 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:09,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:09,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1180374412, now seen corresponding path program 246 times [2022-02-10 22:26:09,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:09,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015468592] [2022-02-10 22:26:09,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:09,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:09,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:09,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:09,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015468592] [2022-02-10 22:26:09,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015468592] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:09,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:09,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:09,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111676583] [2022-02-10 22:26:09,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:09,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:09,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:09,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:09,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:09,146 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:09,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:09,899 INFO L93 Difference]: Finished difference Result 11352 states and 30564 transitions. [2022-02-10 22:26:09,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-10 22:26:09,899 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:09,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:09,913 INFO L225 Difference]: With dead ends: 11352 [2022-02-10 22:26:09,913 INFO L226 Difference]: Without dead ends: 10742 [2022-02-10 22:26:09,914 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1072 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:26:09,914 INFO L934 BasicCegarLoop]: 356 mSDtfsCounter, 530 mSDsluCounter, 3713 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 4012 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:09,914 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [530 Valid, 4012 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:09,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10742 states. [2022-02-10 22:26:10,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10742 to 8980. [2022-02-10 22:26:10,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:10,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-02-10 22:26:10,033 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-02-10 22:26:10,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:10,033 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-02-10 22:26:10,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:10,034 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-02-10 22:26:10,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:10,043 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:10,043 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:10,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-02-10 22:26:10,043 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:10,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:10,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1589513272, now seen corresponding path program 247 times [2022-02-10 22:26:10,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:10,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411753418] [2022-02-10 22:26:10,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:10,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:10,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:10,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411753418] [2022-02-10 22:26:10,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411753418] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:10,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:10,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:10,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994716203] [2022-02-10 22:26:10,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:10,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:10,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:10,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:10,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:10,154 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:10,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:10,522 INFO L93 Difference]: Finished difference Result 11166 states and 30060 transitions. [2022-02-10 22:26:10,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:26:10,523 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:10,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:10,537 INFO L225 Difference]: With dead ends: 11166 [2022-02-10 22:26:10,537 INFO L226 Difference]: Without dead ends: 10681 [2022-02-10 22:26:10,538 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2022-02-10 22:26:10,538 INFO L934 BasicCegarLoop]: 349 mSDtfsCounter, 490 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:10,538 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [490 Valid, 1960 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:10,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10681 states. [2022-02-10 22:26:10,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10681 to 9004. [2022-02-10 22:26:10,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9004 states, 9003 states have (on average 2.700433188937021) internal successors, (24312), 9003 states have internal predecessors, (24312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:10,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9004 states to 9004 states and 24312 transitions. [2022-02-10 22:26:10,662 INFO L78 Accepts]: Start accepts. Automaton has 9004 states and 24312 transitions. Word has length 109 [2022-02-10 22:26:10,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:10,662 INFO L470 AbstractCegarLoop]: Abstraction has 9004 states and 24312 transitions. [2022-02-10 22:26:10,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:10,662 INFO L276 IsEmpty]: Start isEmpty. Operand 9004 states and 24312 transitions. [2022-02-10 22:26:10,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:10,672 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:10,672 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:10,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-02-10 22:26:10,672 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:10,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:10,672 INFO L85 PathProgramCache]: Analyzing trace with hash -907892618, now seen corresponding path program 248 times [2022-02-10 22:26:10,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:10,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663258498] [2022-02-10 22:26:10,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:10,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:10,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:10,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:10,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663258498] [2022-02-10 22:26:10,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663258498] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:10,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:10,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:10,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146954477] [2022-02-10 22:26:10,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:10,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:10,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:10,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:10,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:10,779 INFO L87 Difference]: Start difference. First operand 9004 states and 24312 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:11,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:11,166 INFO L93 Difference]: Finished difference Result 11140 states and 29993 transitions. [2022-02-10 22:26:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:11,166 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:11,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:11,180 INFO L225 Difference]: With dead ends: 11140 [2022-02-10 22:26:11,180 INFO L226 Difference]: Without dead ends: 10654 [2022-02-10 22:26:11,181 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1163, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:11,181 INFO L934 BasicCegarLoop]: 346 mSDtfsCounter, 534 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 3123 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:11,181 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 3123 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:11,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10654 states. [2022-02-10 22:26:11,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10654 to 9000. [2022-02-10 22:26:11,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7004111567951994) internal successors, (24301), 8999 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:11,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24301 transitions. [2022-02-10 22:26:11,294 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24301 transitions. Word has length 109 [2022-02-10 22:26:11,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:11,294 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24301 transitions. [2022-02-10 22:26:11,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:11,294 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24301 transitions. [2022-02-10 22:26:11,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:11,304 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:11,304 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:11,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-02-10 22:26:11,304 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:11,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:11,304 INFO L85 PathProgramCache]: Analyzing trace with hash -207205062, now seen corresponding path program 249 times [2022-02-10 22:26:11,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:11,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117599505] [2022-02-10 22:26:11,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:11,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:11,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:11,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:11,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117599505] [2022-02-10 22:26:11,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117599505] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:11,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:11,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:11,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560761408] [2022-02-10 22:26:11,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:11,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:11,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:11,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:11,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:11,414 INFO L87 Difference]: Start difference. First operand 9000 states and 24301 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:11,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:11,906 INFO L93 Difference]: Finished difference Result 11176 states and 30088 transitions. [2022-02-10 22:26:11,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:26:11,907 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:11,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:11,920 INFO L225 Difference]: With dead ends: 11176 [2022-02-10 22:26:11,921 INFO L226 Difference]: Without dead ends: 10650 [2022-02-10 22:26:11,921 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1627, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:26:11,921 INFO L934 BasicCegarLoop]: 354 mSDtfsCounter, 605 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:11,921 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 2839 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:11,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10650 states. [2022-02-10 22:26:12,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10650 to 8996. [2022-02-10 22:26:12,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:12,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-02-10 22:26:12,032 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-02-10 22:26:12,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:12,032 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-02-10 22:26:12,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:12,032 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-02-10 22:26:12,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:12,041 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:12,042 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:12,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-02-10 22:26:12,042 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:12,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:12,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1943685770, now seen corresponding path program 250 times [2022-02-10 22:26:12,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:12,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059556115] [2022-02-10 22:26:12,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:12,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:12,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:12,168 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:12,168 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059556115] [2022-02-10 22:26:12,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059556115] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:12,168 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:12,168 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:12,168 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705078958] [2022-02-10 22:26:12,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:12,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:12,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:12,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:12,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:12,169 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:12,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:12,768 INFO L93 Difference]: Finished difference Result 11212 states and 30183 transitions. [2022-02-10 22:26:12,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:26:12,768 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:12,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:12,783 INFO L225 Difference]: With dead ends: 11212 [2022-02-10 22:26:12,784 INFO L226 Difference]: Without dead ends: 10646 [2022-02-10 22:26:12,784 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=623, Invalid=2347, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:26:12,784 INFO L934 BasicCegarLoop]: 362 mSDtfsCounter, 660 mSDsluCounter, 3510 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 3825 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:12,784 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [660 Valid, 3825 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:12,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10646 states. [2022-02-10 22:26:12,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10646 to 8992. [2022-02-10 22:26:12,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:12,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-02-10 22:26:12,903 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-02-10 22:26:12,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:12,903 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-02-10 22:26:12,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:12,903 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-02-10 22:26:12,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:12,913 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:12,913 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:12,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-02-10 22:26:12,913 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:12,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:12,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1387090178, now seen corresponding path program 251 times [2022-02-10 22:26:12,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:12,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80821098] [2022-02-10 22:26:12,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:12,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:13,024 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:13,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80821098] [2022-02-10 22:26:13,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80821098] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:13,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:13,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:13,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505086634] [2022-02-10 22:26:13,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:13,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:13,025 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:13,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:13,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:13,025 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:13,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:13,844 INFO L93 Difference]: Finished difference Result 11248 states and 30278 transitions. [2022-02-10 22:26:13,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-10 22:26:13,844 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:13,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:13,858 INFO L225 Difference]: With dead ends: 11248 [2022-02-10 22:26:13,858 INFO L226 Difference]: Without dead ends: 10642 [2022-02-10 22:26:13,859 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=847, Invalid=2935, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:26:13,859 INFO L934 BasicCegarLoop]: 370 mSDtfsCounter, 742 mSDsluCounter, 2883 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:13,859 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [742 Valid, 3211 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:13,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2022-02-10 22:26:13,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 8988. [2022-02-10 22:26:13,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:13,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-02-10 22:26:13,971 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-02-10 22:26:13,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:13,971 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-02-10 22:26:13,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:13,971 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-02-10 22:26:13,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:13,982 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:13,983 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:13,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-02-10 22:26:13,983 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:13,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:13,983 INFO L85 PathProgramCache]: Analyzing trace with hash 848592424, now seen corresponding path program 252 times [2022-02-10 22:26:13,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:13,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200196086] [2022-02-10 22:26:13,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:13,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:14,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:14,117 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:14,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200196086] [2022-02-10 22:26:14,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200196086] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:14,117 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:14,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:14,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055212410] [2022-02-10 22:26:14,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:14,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:14,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:14,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:14,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:14,118 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:15,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:15,028 INFO L93 Difference]: Finished difference Result 11861 states and 31739 transitions. [2022-02-10 22:26:15,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-10 22:26:15,028 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:15,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:15,043 INFO L225 Difference]: With dead ends: 11861 [2022-02-10 22:26:15,043 INFO L226 Difference]: Without dead ends: 10915 [2022-02-10 22:26:15,044 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=995, Invalid=3165, Unknown=0, NotChecked=0, Total=4160 [2022-02-10 22:26:15,044 INFO L934 BasicCegarLoop]: 410 mSDtfsCounter, 954 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:15,044 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 3574 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:15,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2022-02-10 22:26:15,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 8724. [2022-02-10 22:26:15,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8724 states, 8723 states have (on average 2.702166685773243) internal successors, (23571), 8723 states have internal predecessors, (23571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:15,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8724 states to 8724 states and 23571 transitions. [2022-02-10 22:26:15,159 INFO L78 Accepts]: Start accepts. Automaton has 8724 states and 23571 transitions. Word has length 109 [2022-02-10 22:26:15,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:15,159 INFO L470 AbstractCegarLoop]: Abstraction has 8724 states and 23571 transitions. [2022-02-10 22:26:15,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:15,159 INFO L276 IsEmpty]: Start isEmpty. Operand 8724 states and 23571 transitions. [2022-02-10 22:26:15,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:15,170 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:15,170 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:15,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-02-10 22:26:15,170 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:15,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:15,170 INFO L85 PathProgramCache]: Analyzing trace with hash 2023938288, now seen corresponding path program 1 times [2022-02-10 22:26:15,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:15,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072154674] [2022-02-10 22:26:15,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:15,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:15,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:15,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:15,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072154674] [2022-02-10 22:26:15,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072154674] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:15,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:15,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:26:15,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613934501] [2022-02-10 22:26:15,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:15,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:26:15,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:15,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:26:15,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:26:15,186 INFO L87 Difference]: Start difference. First operand 8724 states and 23571 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:15,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:15,216 INFO L93 Difference]: Finished difference Result 7930 states and 20990 transitions. [2022-02-10 22:26:15,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:26:15,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:15,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:15,225 INFO L225 Difference]: With dead ends: 7930 [2022-02-10 22:26:15,225 INFO L226 Difference]: Without dead ends: 7930 [2022-02-10 22:26:15,225 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:26:15,225 INFO L934 BasicCegarLoop]: 169 mSDtfsCounter, 123 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:15,225 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 203 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:26:15,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7930 states. [2022-02-10 22:26:15,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7930 to 7930. [2022-02-10 22:26:15,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7930 states, 7929 states have (on average 2.6472442931012736) internal successors, (20990), 7929 states have internal predecessors, (20990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:15,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7930 states to 7930 states and 20990 transitions. [2022-02-10 22:26:15,313 INFO L78 Accepts]: Start accepts. Automaton has 7930 states and 20990 transitions. Word has length 109 [2022-02-10 22:26:15,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:15,313 INFO L470 AbstractCegarLoop]: Abstraction has 7930 states and 20990 transitions. [2022-02-10 22:26:15,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:15,314 INFO L276 IsEmpty]: Start isEmpty. Operand 7930 states and 20990 transitions. [2022-02-10 22:26:15,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:15,321 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:15,321 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:15,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-02-10 22:26:15,321 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:15,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:15,322 INFO L85 PathProgramCache]: Analyzing trace with hash 118742352, now seen corresponding path program 1 times [2022-02-10 22:26:15,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:15,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917087953] [2022-02-10 22:26:15,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:15,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:15,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:15,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:15,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917087953] [2022-02-10 22:26:15,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917087953] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:15,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:15,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:15,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227434249] [2022-02-10 22:26:15,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:15,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:15,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:15,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:15,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:15,430 INFO L87 Difference]: Start difference. First operand 7930 states and 20990 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:16,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:16,400 INFO L93 Difference]: Finished difference Result 9314 states and 24487 transitions. [2022-02-10 22:26:16,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-10 22:26:16,400 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:16,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:16,410 INFO L225 Difference]: With dead ends: 9314 [2022-02-10 22:26:16,410 INFO L226 Difference]: Without dead ends: 8518 [2022-02-10 22:26:16,410 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1325 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1028, Invalid=3394, Unknown=0, NotChecked=0, Total=4422 [2022-02-10 22:26:16,410 INFO L934 BasicCegarLoop]: 318 mSDtfsCounter, 611 mSDsluCounter, 3305 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 3534 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:16,411 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [611 Valid, 3534 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:16,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8518 states. [2022-02-10 22:26:16,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8518 to 7730. [2022-02-10 22:26:16,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.644585327985509) internal successors, (20440), 7729 states have internal predecessors, (20440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:16,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20440 transitions. [2022-02-10 22:26:16,499 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20440 transitions. Word has length 109 [2022-02-10 22:26:16,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:16,500 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20440 transitions. [2022-02-10 22:26:16,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:16,500 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20440 transitions. [2022-02-10 22:26:16,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:16,508 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:16,508 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:16,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-02-10 22:26:16,508 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:16,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:16,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1474585368, now seen corresponding path program 2 times [2022-02-10 22:26:16,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:16,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441011483] [2022-02-10 22:26:16,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:16,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:16,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:16,642 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:16,642 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441011483] [2022-02-10 22:26:16,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441011483] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:16,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:16,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:16,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919259694] [2022-02-10 22:26:16,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:16,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:16,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:16,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:16,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:16,643 INFO L87 Difference]: Start difference. First operand 7730 states and 20440 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:17,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:17,051 INFO L93 Difference]: Finished difference Result 8756 states and 23083 transitions. [2022-02-10 22:26:17,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:26:17,052 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:17,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:17,062 INFO L225 Difference]: With dead ends: 8756 [2022-02-10 22:26:17,062 INFO L226 Difference]: Without dead ends: 8277 [2022-02-10 22:26:17,062 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2022-02-10 22:26:17,062 INFO L934 BasicCegarLoop]: 278 mSDtfsCounter, 218 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 2691 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:17,063 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 2691 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:17,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8277 states. [2022-02-10 22:26:17,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8277 to 7746. [2022-02-10 22:26:17,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7746 states, 7745 states have (on average 2.644286636539703) internal successors, (20480), 7745 states have internal predecessors, (20480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:17,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7746 states to 7746 states and 20480 transitions. [2022-02-10 22:26:17,157 INFO L78 Accepts]: Start accepts. Automaton has 7746 states and 20480 transitions. Word has length 109 [2022-02-10 22:26:17,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:17,157 INFO L470 AbstractCegarLoop]: Abstraction has 7746 states and 20480 transitions. [2022-02-10 22:26:17,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:17,157 INFO L276 IsEmpty]: Start isEmpty. Operand 7746 states and 20480 transitions. [2022-02-10 22:26:17,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:17,166 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:17,166 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:17,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-02-10 22:26:17,166 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:17,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:17,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1192858810, now seen corresponding path program 3 times [2022-02-10 22:26:17,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:17,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112393739] [2022-02-10 22:26:17,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:17,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:17,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:17,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:17,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112393739] [2022-02-10 22:26:17,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112393739] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:17,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:17,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:17,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313507436] [2022-02-10 22:26:17,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:17,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:17,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:17,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:17,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:17,270 INFO L87 Difference]: Start difference. First operand 7746 states and 20480 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:17,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:17,673 INFO L93 Difference]: Finished difference Result 8734 states and 23027 transitions. [2022-02-10 22:26:17,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:17,673 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:17,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:17,682 INFO L225 Difference]: With dead ends: 8734 [2022-02-10 22:26:17,682 INFO L226 Difference]: Without dead ends: 8254 [2022-02-10 22:26:17,683 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1163, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:17,683 INFO L934 BasicCegarLoop]: 287 mSDtfsCounter, 233 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2799 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:17,683 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2799 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:17,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8254 states. [2022-02-10 22:26:17,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8254 to 7742. [2022-02-10 22:26:17,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7742 states, 7741 states have (on average 2.6442320113680404) internal successors, (20469), 7741 states have internal predecessors, (20469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:17,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7742 states to 7742 states and 20469 transitions. [2022-02-10 22:26:17,768 INFO L78 Accepts]: Start accepts. Automaton has 7742 states and 20469 transitions. Word has length 109 [2022-02-10 22:26:17,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:17,768 INFO L470 AbstractCegarLoop]: Abstraction has 7742 states and 20469 transitions. [2022-02-10 22:26:17,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:17,769 INFO L276 IsEmpty]: Start isEmpty. Operand 7742 states and 20469 transitions. [2022-02-10 22:26:17,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:17,776 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:17,776 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:17,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-02-10 22:26:17,777 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:17,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:17,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1981051146, now seen corresponding path program 4 times [2022-02-10 22:26:17,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:17,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283351188] [2022-02-10 22:26:17,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:17,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:17,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:17,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:17,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:17,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283351188] [2022-02-10 22:26:17,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283351188] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:17,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:17,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:17,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306555652] [2022-02-10 22:26:17,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:17,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:17,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:17,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:17,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:17,884 INFO L87 Difference]: Start difference. First operand 7742 states and 20469 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:18,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:18,372 INFO L93 Difference]: Finished difference Result 8770 states and 23122 transitions. [2022-02-10 22:26:18,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:26:18,372 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:18,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:18,385 INFO L225 Difference]: With dead ends: 8770 [2022-02-10 22:26:18,385 INFO L226 Difference]: Without dead ends: 8250 [2022-02-10 22:26:18,386 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=446, Invalid=1716, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:26:18,386 INFO L934 BasicCegarLoop]: 296 mSDtfsCounter, 301 mSDsluCounter, 2652 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:18,386 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 2873 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:18,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8250 states. [2022-02-10 22:26:18,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8250 to 7738. [2022-02-10 22:26:18,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7738 states, 7737 states have (on average 2.6441773297143594) internal successors, (20458), 7737 states have internal predecessors, (20458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:18,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7738 states to 7738 states and 20458 transitions. [2022-02-10 22:26:18,500 INFO L78 Accepts]: Start accepts. Automaton has 7738 states and 20458 transitions. Word has length 109 [2022-02-10 22:26:18,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:18,500 INFO L470 AbstractCegarLoop]: Abstraction has 7738 states and 20458 transitions. [2022-02-10 22:26:18,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:18,500 INFO L276 IsEmpty]: Start isEmpty. Operand 7738 states and 20458 transitions. [2022-02-10 22:26:18,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:18,508 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:18,508 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:18,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-02-10 22:26:18,508 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:18,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:18,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1455915610, now seen corresponding path program 5 times [2022-02-10 22:26:18,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:18,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147181914] [2022-02-10 22:26:18,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:18,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:18,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:18,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:18,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147181914] [2022-02-10 22:26:18,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147181914] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:18,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:18,617 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:18,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511354468] [2022-02-10 22:26:18,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:18,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:18,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:18,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:18,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:18,618 INFO L87 Difference]: Start difference. First operand 7738 states and 20458 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:19,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:19,234 INFO L93 Difference]: Finished difference Result 8806 states and 23217 transitions. [2022-02-10 22:26:19,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:26:19,234 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:19,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:19,244 INFO L225 Difference]: With dead ends: 8806 [2022-02-10 22:26:19,244 INFO L226 Difference]: Without dead ends: 8246 [2022-02-10 22:26:19,244 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=623, Invalid=2347, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:26:19,244 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 361 mSDsluCounter, 3223 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3442 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:19,245 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 3442 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:19,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8246 states. [2022-02-10 22:26:19,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8246 to 7734. [2022-02-10 22:26:19,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7734 states, 7733 states have (on average 2.6441225914910125) internal successors, (20447), 7733 states have internal predecessors, (20447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:19,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7734 states to 7734 states and 20447 transitions. [2022-02-10 22:26:19,334 INFO L78 Accepts]: Start accepts. Automaton has 7734 states and 20447 transitions. Word has length 109 [2022-02-10 22:26:19,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:19,334 INFO L470 AbstractCegarLoop]: Abstraction has 7734 states and 20447 transitions. [2022-02-10 22:26:19,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:19,335 INFO L276 IsEmpty]: Start isEmpty. Operand 7734 states and 20447 transitions. [2022-02-10 22:26:19,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:19,342 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:19,342 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:19,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-02-10 22:26:19,342 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:19,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:19,342 INFO L85 PathProgramCache]: Analyzing trace with hash 2108208876, now seen corresponding path program 6 times [2022-02-10 22:26:19,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:19,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723027481] [2022-02-10 22:26:19,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:19,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:19,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:19,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:19,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723027481] [2022-02-10 22:26:19,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723027481] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:19,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:19,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:19,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402724120] [2022-02-10 22:26:19,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:19,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:19,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:19,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:19,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:19,456 INFO L87 Difference]: Start difference. First operand 7734 states and 20447 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:20,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:20,194 INFO L93 Difference]: Finished difference Result 8802 states and 23202 transitions. [2022-02-10 22:26:20,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-10 22:26:20,194 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:20,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:20,204 INFO L225 Difference]: With dead ends: 8802 [2022-02-10 22:26:20,204 INFO L226 Difference]: Without dead ends: 8182 [2022-02-10 22:26:20,204 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=850, Invalid=3056, Unknown=0, NotChecked=0, Total=3906 [2022-02-10 22:26:20,204 INFO L934 BasicCegarLoop]: 306 mSDtfsCounter, 430 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:20,204 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 3405 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:20,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8182 states. [2022-02-10 22:26:20,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8182 to 7710. [2022-02-10 22:26:20,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.6443118433000388) internal successors, (20385), 7709 states have internal predecessors, (20385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:20,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20385 transitions. [2022-02-10 22:26:20,292 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20385 transitions. Word has length 109 [2022-02-10 22:26:20,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:20,292 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20385 transitions. [2022-02-10 22:26:20,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:20,293 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20385 transitions. [2022-02-10 22:26:20,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:20,300 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:20,300 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:20,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-02-10 22:26:20,300 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:20,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:20,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1960844258, now seen corresponding path program 7 times [2022-02-10 22:26:20,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:20,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685063040] [2022-02-10 22:26:20,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:20,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:20,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:20,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:20,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685063040] [2022-02-10 22:26:20,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685063040] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:20,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:20,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:20,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439254152] [2022-02-10 22:26:20,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:20,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:20,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:20,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:20,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:20,414 INFO L87 Difference]: Start difference. First operand 7710 states and 20385 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:20,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:20,867 INFO L93 Difference]: Finished difference Result 8976 states and 23688 transitions. [2022-02-10 22:26:20,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:26:20,868 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:20,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:20,878 INFO L225 Difference]: With dead ends: 8976 [2022-02-10 22:26:20,878 INFO L226 Difference]: Without dead ends: 8497 [2022-02-10 22:26:20,878 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=348, Invalid=984, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:26:20,878 INFO L934 BasicCegarLoop]: 274 mSDtfsCounter, 228 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:20,878 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 2660 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:20,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8497 states. [2022-02-10 22:26:20,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8497 to 7730. [2022-02-10 22:26:20,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.6440677966101696) internal successors, (20436), 7729 states have internal predecessors, (20436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:20,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20436 transitions. [2022-02-10 22:26:20,970 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20436 transitions. Word has length 109 [2022-02-10 22:26:20,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:20,970 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20436 transitions. [2022-02-10 22:26:20,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:20,970 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20436 transitions. [2022-02-10 22:26:20,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:20,978 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:20,978 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:20,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-02-10 22:26:20,978 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:20,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:20,979 INFO L85 PathProgramCache]: Analyzing trace with hash -706599920, now seen corresponding path program 8 times [2022-02-10 22:26:20,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:20,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756296686] [2022-02-10 22:26:20,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:20,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:21,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:21,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:21,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756296686] [2022-02-10 22:26:21,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756296686] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:21,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:21,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:21,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463351225] [2022-02-10 22:26:21,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:21,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:21,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:21,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:21,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:21,091 INFO L87 Difference]: Start difference. First operand 7730 states and 20436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:21,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:21,536 INFO L93 Difference]: Finished difference Result 8942 states and 23599 transitions. [2022-02-10 22:26:21,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:21,537 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:21,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:21,547 INFO L225 Difference]: With dead ends: 8942 [2022-02-10 22:26:21,547 INFO L226 Difference]: Without dead ends: 8462 [2022-02-10 22:26:21,547 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=1155, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:21,547 INFO L934 BasicCegarLoop]: 276 mSDtfsCounter, 222 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 3123 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:21,548 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 3123 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:21,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8462 states. [2022-02-10 22:26:21,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8462 to 7726. [2022-02-10 22:26:21,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.644012944983819) internal successors, (20425), 7725 states have internal predecessors, (20425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:21,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20425 transitions. [2022-02-10 22:26:21,636 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20425 transitions. Word has length 109 [2022-02-10 22:26:21,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:21,636 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20425 transitions. [2022-02-10 22:26:21,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:21,636 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20425 transitions. [2022-02-10 22:26:21,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:21,643 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:21,643 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:21,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-02-10 22:26:21,644 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:21,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:21,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1827657260, now seen corresponding path program 9 times [2022-02-10 22:26:21,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:21,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578248280] [2022-02-10 22:26:21,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:21,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:21,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:21,756 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:21,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578248280] [2022-02-10 22:26:21,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578248280] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:21,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:21,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:21,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634697034] [2022-02-10 22:26:21,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:21,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:21,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:21,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:21,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:21,756 INFO L87 Difference]: Start difference. First operand 7726 states and 20425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:22,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:22,298 INFO L93 Difference]: Finished difference Result 8978 states and 23694 transitions. [2022-02-10 22:26:22,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:26:22,299 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:22,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:22,309 INFO L225 Difference]: With dead ends: 8978 [2022-02-10 22:26:22,309 INFO L226 Difference]: Without dead ends: 8458 [2022-02-10 22:26:22,309 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=465, Invalid=1697, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:26:22,310 INFO L934 BasicCegarLoop]: 285 mSDtfsCounter, 292 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:22,310 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 3220 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:22,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2022-02-10 22:26:22,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 7722. [2022-02-10 22:26:22,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7721 states have (on average 2.6439580365237663) internal successors, (20414), 7721 states have internal predecessors, (20414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:22,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 20414 transitions. [2022-02-10 22:26:22,400 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 20414 transitions. Word has length 109 [2022-02-10 22:26:22,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:22,400 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 20414 transitions. [2022-02-10 22:26:22,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:22,401 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 20414 transitions. [2022-02-10 22:26:22,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:22,408 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:22,408 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:22,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-02-10 22:26:22,408 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:22,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:22,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1942174500, now seen corresponding path program 10 times [2022-02-10 22:26:22,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:22,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324386476] [2022-02-10 22:26:22,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:22,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:22,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:22,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324386476] [2022-02-10 22:26:22,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324386476] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:22,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:22,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:22,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158568016] [2022-02-10 22:26:22,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:22,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:22,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:22,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:22,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:22,523 INFO L87 Difference]: Start difference. First operand 7722 states and 20414 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:23,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:23,134 INFO L93 Difference]: Finished difference Result 9206 states and 24293 transitions. [2022-02-10 22:26:23,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:26:23,134 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:23,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:23,145 INFO L225 Difference]: With dead ends: 9206 [2022-02-10 22:26:23,145 INFO L226 Difference]: Without dead ends: 8646 [2022-02-10 22:26:23,146 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:26:23,146 INFO L934 BasicCegarLoop]: 291 mSDtfsCounter, 380 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:23,146 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 3058 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:23,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8646 states. [2022-02-10 22:26:23,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8646 to 7718. [2022-02-10 22:26:23,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7718 states, 7717 states have (on average 2.643903071141635) internal successors, (20403), 7717 states have internal predecessors, (20403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:23,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7718 states to 7718 states and 20403 transitions. [2022-02-10 22:26:23,293 INFO L78 Accepts]: Start accepts. Automaton has 7718 states and 20403 transitions. Word has length 109 [2022-02-10 22:26:23,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:23,293 INFO L470 AbstractCegarLoop]: Abstraction has 7718 states and 20403 transitions. [2022-02-10 22:26:23,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:23,293 INFO L276 IsEmpty]: Start isEmpty. Operand 7718 states and 20403 transitions. [2022-02-10 22:26:23,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:23,300 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:23,300 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:23,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-02-10 22:26:23,300 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:23,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:23,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1751861096, now seen corresponding path program 11 times [2022-02-10 22:26:23,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:23,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002591520] [2022-02-10 22:26:23,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:23,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:23,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:23,411 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:23,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002591520] [2022-02-10 22:26:23,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002591520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:23,411 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:23,411 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:23,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773614605] [2022-02-10 22:26:23,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:23,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:23,411 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:23,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:23,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:23,412 INFO L87 Difference]: Start difference. First operand 7718 states and 20403 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:23,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:23,867 INFO L93 Difference]: Finished difference Result 8952 states and 23618 transitions. [2022-02-10 22:26:23,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:26:23,867 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:23,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:23,877 INFO L225 Difference]: With dead ends: 8952 [2022-02-10 22:26:23,877 INFO L226 Difference]: Without dead ends: 8473 [2022-02-10 22:26:23,878 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=366, Invalid=1040, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:26:23,878 INFO L934 BasicCegarLoop]: 276 mSDtfsCounter, 230 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2712 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:23,878 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2712 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:23,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8473 states. [2022-02-10 22:26:23,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8473 to 7730. [2022-02-10 22:26:23,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.64355026523483) internal successors, (20432), 7729 states have internal predecessors, (20432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:23,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20432 transitions. [2022-02-10 22:26:23,970 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20432 transitions. Word has length 109 [2022-02-10 22:26:23,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:23,970 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20432 transitions. [2022-02-10 22:26:23,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:23,970 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20432 transitions. [2022-02-10 22:26:23,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:23,978 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:23,978 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:23,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-02-10 22:26:23,978 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:23,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:23,978 INFO L85 PathProgramCache]: Analyzing trace with hash -915583082, now seen corresponding path program 12 times [2022-02-10 22:26:23,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:23,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549578897] [2022-02-10 22:26:23,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:23,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:24,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:24,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:24,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549578897] [2022-02-10 22:26:24,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549578897] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:24,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:24,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:24,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265898692] [2022-02-10 22:26:24,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:24,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:24,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:24,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:24,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:24,084 INFO L87 Difference]: Start difference. First operand 7730 states and 20432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:24,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:24,523 INFO L93 Difference]: Finished difference Result 8910 states and 23507 transitions. [2022-02-10 22:26:24,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:24,523 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:24,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:24,534 INFO L225 Difference]: With dead ends: 8910 [2022-02-10 22:26:24,534 INFO L226 Difference]: Without dead ends: 8430 [2022-02-10 22:26:24,534 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:24,534 INFO L934 BasicCegarLoop]: 277 mSDtfsCounter, 230 mSDsluCounter, 2710 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:24,534 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2916 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:24,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8430 states. [2022-02-10 22:26:24,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8430 to 7726. [2022-02-10 22:26:24,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.643495145631068) internal successors, (20421), 7725 states have internal predecessors, (20421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:24,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20421 transitions. [2022-02-10 22:26:24,623 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20421 transitions. Word has length 109 [2022-02-10 22:26:24,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:24,624 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20421 transitions. [2022-02-10 22:26:24,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:24,624 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20421 transitions. [2022-02-10 22:26:24,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:24,631 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:24,631 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:24,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-02-10 22:26:24,631 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:24,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:24,632 INFO L85 PathProgramCache]: Analyzing trace with hash -2036640422, now seen corresponding path program 13 times [2022-02-10 22:26:24,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:24,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999394796] [2022-02-10 22:26:24,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:24,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:24,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:24,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:24,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999394796] [2022-02-10 22:26:24,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999394796] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:24,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:24,740 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:24,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629513563] [2022-02-10 22:26:24,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:24,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:24,740 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:24,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:24,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:24,741 INFO L87 Difference]: Start difference. First operand 7726 states and 20421 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:25,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:25,256 INFO L93 Difference]: Finished difference Result 9078 states and 23949 transitions. [2022-02-10 22:26:25,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:26:25,256 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:25,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:25,266 INFO L225 Difference]: With dead ends: 9078 [2022-02-10 22:26:25,266 INFO L226 Difference]: Without dead ends: 8558 [2022-02-10 22:26:25,266 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 487 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=453, Invalid=1617, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:26:25,267 INFO L934 BasicCegarLoop]: 283 mSDtfsCounter, 303 mSDsluCounter, 2992 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 3199 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:25,267 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [303 Valid, 3199 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:25,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8558 states. [2022-02-10 22:26:25,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8558 to 7722. [2022-02-10 22:26:25,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7721 states have (on average 2.6434399689159433) internal successors, (20410), 7721 states have internal predecessors, (20410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:25,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 20410 transitions. [2022-02-10 22:26:25,354 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 20410 transitions. Word has length 109 [2022-02-10 22:26:25,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:25,354 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 20410 transitions. [2022-02-10 22:26:25,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:25,354 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 20410 transitions. [2022-02-10 22:26:25,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:25,361 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:25,361 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:25,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-02-10 22:26:25,362 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:25,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:25,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1964010698, now seen corresponding path program 14 times [2022-02-10 22:26:25,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:25,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319856843] [2022-02-10 22:26:25,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:25,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:25,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:25,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:25,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319856843] [2022-02-10 22:26:25,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319856843] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:25,471 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:25,471 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:25,471 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731245998] [2022-02-10 22:26:25,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:25,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:25,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:25,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:25,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:25,472 INFO L87 Difference]: Start difference. First operand 7722 states and 20410 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:26,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:26,022 INFO L93 Difference]: Finished difference Result 8956 states and 23600 transitions. [2022-02-10 22:26:26,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:26:26,023 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:26,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:26,032 INFO L225 Difference]: With dead ends: 8956 [2022-02-10 22:26:26,033 INFO L226 Difference]: Without dead ends: 8434 [2022-02-10 22:26:26,033 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=497, Invalid=1309, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 22:26:26,033 INFO L934 BasicCegarLoop]: 279 mSDtfsCounter, 279 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:26,033 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 2734 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:26,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8434 states. [2022-02-10 22:26:26,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8434 to 7726. [2022-02-10 22:26:26,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.6429773462783173) internal successors, (20417), 7725 states have internal predecessors, (20417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:26,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20417 transitions. [2022-02-10 22:26:26,121 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20417 transitions. Word has length 109 [2022-02-10 22:26:26,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:26,122 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20417 transitions. [2022-02-10 22:26:26,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:26,122 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20417 transitions. [2022-02-10 22:26:26,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:26,130 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:26,130 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:26,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-02-10 22:26:26,130 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:26,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:26,130 INFO L85 PathProgramCache]: Analyzing trace with hash 773041248, now seen corresponding path program 15 times [2022-02-10 22:26:26,130 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:26,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782856241] [2022-02-10 22:26:26,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:26,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:26,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:26,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:26,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782856241] [2022-02-10 22:26:26,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782856241] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:26,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:26,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:26,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777793136] [2022-02-10 22:26:26,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:26,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:26,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:26,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:26,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:26,257 INFO L87 Difference]: Start difference. First operand 7726 states and 20417 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:26,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:26,726 INFO L93 Difference]: Finished difference Result 8888 states and 23434 transitions. [2022-02-10 22:26:26,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:26,726 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:26,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:26,736 INFO L225 Difference]: With dead ends: 8888 [2022-02-10 22:26:26,736 INFO L226 Difference]: Without dead ends: 8409 [2022-02-10 22:26:26,736 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=389, Invalid=1171, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:26:26,736 INFO L934 BasicCegarLoop]: 279 mSDtfsCounter, 236 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:26,736 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2544 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:26,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8409 states. [2022-02-10 22:26:26,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8409 to 7730. [2022-02-10 22:26:26,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.6425152024841507) internal successors, (20424), 7729 states have internal predecessors, (20424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:26,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20424 transitions. [2022-02-10 22:26:26,826 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20424 transitions. Word has length 109 [2022-02-10 22:26:26,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:26,826 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20424 transitions. [2022-02-10 22:26:26,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:26,826 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20424 transitions. [2022-02-10 22:26:26,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:26,834 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:26,834 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:26,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-02-10 22:26:26,834 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:26,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:26,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1894402930, now seen corresponding path program 16 times [2022-02-10 22:26:26,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:26,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151532938] [2022-02-10 22:26:26,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:26,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:26,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:26,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:26,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151532938] [2022-02-10 22:26:26,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151532938] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:26,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:26,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:26,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289887125] [2022-02-10 22:26:26,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:26,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:26,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:26,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:26,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:26,941 INFO L87 Difference]: Start difference. First operand 7730 states and 20424 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:27,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:27,336 INFO L93 Difference]: Finished difference Result 8838 states and 23301 transitions. [2022-02-10 22:26:27,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:26:27,336 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:27,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:27,346 INFO L225 Difference]: With dead ends: 8838 [2022-02-10 22:26:27,346 INFO L226 Difference]: Without dead ends: 8346 [2022-02-10 22:26:27,346 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=1091, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:26:27,346 INFO L934 BasicCegarLoop]: 280 mSDtfsCounter, 224 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2540 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:27,346 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2540 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:27,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8346 states. [2022-02-10 22:26:27,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8346 to 7714. [2022-02-10 22:26:27,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6438480487488656) internal successors, (20392), 7713 states have internal predecessors, (20392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:27,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20392 transitions. [2022-02-10 22:26:27,433 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20392 transitions. Word has length 109 [2022-02-10 22:26:27,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:27,433 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20392 transitions. [2022-02-10 22:26:27,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:27,433 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20392 transitions. [2022-02-10 22:26:27,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:27,441 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:27,441 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:27,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-02-10 22:26:27,441 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:27,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:27,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1140279682, now seen corresponding path program 17 times [2022-02-10 22:26:27,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:27,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137228730] [2022-02-10 22:26:27,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:27,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:27,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:27,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:27,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137228730] [2022-02-10 22:26:27,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137228730] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:27,557 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:27,557 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:27,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77990688] [2022-02-10 22:26:27,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:27,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:27,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:27,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:27,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:27,558 INFO L87 Difference]: Start difference. First operand 7714 states and 20392 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:27,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:27,997 INFO L93 Difference]: Finished difference Result 8820 states and 23255 transitions. [2022-02-10 22:26:27,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:26:27,997 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:27,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:28,007 INFO L225 Difference]: With dead ends: 8820 [2022-02-10 22:26:28,007 INFO L226 Difference]: Without dead ends: 8341 [2022-02-10 22:26:28,007 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=928, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:26:28,007 INFO L934 BasicCegarLoop]: 273 mSDtfsCounter, 230 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2889 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:28,007 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2889 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:28,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8341 states. [2022-02-10 22:26:28,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8341 to 7730. [2022-02-10 22:26:28,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.64355026523483) internal successors, (20432), 7729 states have internal predecessors, (20432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:28,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20432 transitions. [2022-02-10 22:26:28,095 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20432 transitions. Word has length 109 [2022-02-10 22:26:28,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:28,095 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20432 transitions. [2022-02-10 22:26:28,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:28,095 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20432 transitions. [2022-02-10 22:26:28,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:28,103 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:28,103 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:28,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-02-10 22:26:28,103 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:28,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:28,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1527164496, now seen corresponding path program 18 times [2022-02-10 22:26:28,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:28,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281600080] [2022-02-10 22:26:28,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:28,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:28,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:28,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281600080] [2022-02-10 22:26:28,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281600080] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:28,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:28,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:28,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711341454] [2022-02-10 22:26:28,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:28,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:28,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:28,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:28,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:28,217 INFO L87 Difference]: Start difference. First operand 7730 states and 20432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:28,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:28,658 INFO L93 Difference]: Finished difference Result 8798 states and 23199 transitions. [2022-02-10 22:26:28,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:28,659 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:28,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:28,669 INFO L225 Difference]: With dead ends: 8798 [2022-02-10 22:26:28,669 INFO L226 Difference]: Without dead ends: 8318 [2022-02-10 22:26:28,669 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1161, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:28,670 INFO L934 BasicCegarLoop]: 270 mSDtfsCounter, 249 mSDsluCounter, 2903 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3098 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:28,670 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3098 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:28,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8318 states. [2022-02-10 22:26:28,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8318 to 7726. [2022-02-10 22:26:28,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.643495145631068) internal successors, (20421), 7725 states have internal predecessors, (20421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:28,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20421 transitions. [2022-02-10 22:26:28,758 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20421 transitions. Word has length 109 [2022-02-10 22:26:28,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:28,758 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20421 transitions. [2022-02-10 22:26:28,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:28,758 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20421 transitions. [2022-02-10 22:26:28,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:28,766 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:28,766 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:28,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-02-10 22:26:28,766 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:28,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:28,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1646745460, now seen corresponding path program 19 times [2022-02-10 22:26:28,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:28,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222553699] [2022-02-10 22:26:28,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:28,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:28,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:28,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222553699] [2022-02-10 22:26:28,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222553699] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:28,877 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:28,877 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:28,877 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271260140] [2022-02-10 22:26:28,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:28,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:28,877 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:28,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:28,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:28,877 INFO L87 Difference]: Start difference. First operand 7726 states and 20421 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:29,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:29,412 INFO L93 Difference]: Finished difference Result 8834 states and 23294 transitions. [2022-02-10 22:26:29,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:26:29,413 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:29,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:29,423 INFO L225 Difference]: With dead ends: 8834 [2022-02-10 22:26:29,423 INFO L226 Difference]: Without dead ends: 8314 [2022-02-10 22:26:29,423 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:26:29,423 INFO L934 BasicCegarLoop]: 278 mSDtfsCounter, 319 mSDsluCounter, 2987 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:29,423 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 3189 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:29,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8314 states. [2022-02-10 22:26:29,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8314 to 7722. [2022-02-10 22:26:29,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7721 states have (on average 2.6434399689159433) internal successors, (20410), 7721 states have internal predecessors, (20410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 20410 transitions. [2022-02-10 22:26:29,511 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 20410 transitions. Word has length 109 [2022-02-10 22:26:29,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:29,511 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 20410 transitions. [2022-02-10 22:26:29,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:29,511 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 20410 transitions. [2022-02-10 22:26:29,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:29,519 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:29,519 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:29,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-02-10 22:26:29,519 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:29,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:29,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1121609924, now seen corresponding path program 20 times [2022-02-10 22:26:29,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:29,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050154491] [2022-02-10 22:26:29,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:29,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:29,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:29,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:29,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050154491] [2022-02-10 22:26:29,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050154491] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:29,631 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:29,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:29,631 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520710129] [2022-02-10 22:26:29,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:29,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:29,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:29,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:29,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:29,632 INFO L87 Difference]: Start difference. First operand 7722 states and 20410 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:30,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:30,264 INFO L93 Difference]: Finished difference Result 8870 states and 23389 transitions. [2022-02-10 22:26:30,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:26:30,264 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:30,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:30,274 INFO L225 Difference]: With dead ends: 8870 [2022-02-10 22:26:30,274 INFO L226 Difference]: Without dead ends: 8310 [2022-02-10 22:26:30,274 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=637, Invalid=2333, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:26:30,274 INFO L934 BasicCegarLoop]: 286 mSDtfsCounter, 390 mSDsluCounter, 2831 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:30,274 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 3044 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:30,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8310 states. [2022-02-10 22:26:30,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8310 to 7718. [2022-02-10 22:26:30,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7718 states, 7717 states have (on average 2.643384735000648) internal successors, (20399), 7717 states have internal predecessors, (20399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:30,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7718 states to 7718 states and 20399 transitions. [2022-02-10 22:26:30,387 INFO L78 Accepts]: Start accepts. Automaton has 7718 states and 20399 transitions. Word has length 109 [2022-02-10 22:26:30,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:30,387 INFO L470 AbstractCegarLoop]: Abstraction has 7718 states and 20399 transitions. [2022-02-10 22:26:30,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:30,388 INFO L276 IsEmpty]: Start isEmpty. Operand 7718 states and 20399 transitions. [2022-02-10 22:26:30,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:30,395 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:30,395 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:30,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-02-10 22:26:30,395 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:30,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:30,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1773903190, now seen corresponding path program 21 times [2022-02-10 22:26:30,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:30,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984318320] [2022-02-10 22:26:30,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:30,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:30,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:30,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:30,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984318320] [2022-02-10 22:26:30,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984318320] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:30,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:30,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:30,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832133000] [2022-02-10 22:26:30,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:30,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:30,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:30,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:30,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:30,506 INFO L87 Difference]: Start difference. First operand 7718 states and 20399 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:31,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:31,225 INFO L93 Difference]: Finished difference Result 8786 states and 23154 transitions. [2022-02-10 22:26:31,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-10 22:26:31,225 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:31,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:31,235 INFO L225 Difference]: With dead ends: 8786 [2022-02-10 22:26:31,236 INFO L226 Difference]: Without dead ends: 8162 [2022-02-10 22:26:31,236 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1067 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:26:31,236 INFO L934 BasicCegarLoop]: 286 mSDtfsCounter, 430 mSDsluCounter, 2786 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:31,236 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 2998 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:31,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8162 states. [2022-02-10 22:26:31,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8162 to 7690. [2022-02-10 22:26:31,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6440369358824296) internal successors, (20330), 7689 states have internal predecessors, (20330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:31,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20330 transitions. [2022-02-10 22:26:31,333 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20330 transitions. Word has length 109 [2022-02-10 22:26:31,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:31,333 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20330 transitions. [2022-02-10 22:26:31,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:31,333 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20330 transitions. [2022-02-10 22:26:31,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:31,342 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:31,342 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:31,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-02-10 22:26:31,342 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:31,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:31,342 INFO L85 PathProgramCache]: Analyzing trace with hash 252922488, now seen corresponding path program 22 times [2022-02-10 22:26:31,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:31,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15710676] [2022-02-10 22:26:31,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:31,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:31,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:31,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:31,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15710676] [2022-02-10 22:26:31,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15710676] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:31,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:31,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:31,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519527600] [2022-02-10 22:26:31,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:31,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:31,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:31,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:31,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:31,480 INFO L87 Difference]: Start difference. First operand 7690 states and 20330 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:31,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:31,972 INFO L93 Difference]: Finished difference Result 9176 states and 24238 transitions. [2022-02-10 22:26:31,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:26:31,972 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:31,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:31,983 INFO L225 Difference]: With dead ends: 9176 [2022-02-10 22:26:31,984 INFO L226 Difference]: Without dead ends: 8697 [2022-02-10 22:26:31,984 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=990, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:26:31,984 INFO L934 BasicCegarLoop]: 263 mSDtfsCounter, 229 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:31,984 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2809 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:26:31,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-02-10 22:26:32,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 7714. [2022-02-10 22:26:32,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6438480487488656) internal successors, (20392), 7713 states have internal predecessors, (20392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:32,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20392 transitions. [2022-02-10 22:26:32,077 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20392 transitions. Word has length 109 [2022-02-10 22:26:32,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:32,077 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20392 transitions. [2022-02-10 22:26:32,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:32,077 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20392 transitions. [2022-02-10 22:26:32,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:32,085 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:32,086 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:32,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-02-10 22:26:32,086 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:32,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:32,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1880445606, now seen corresponding path program 23 times [2022-02-10 22:26:32,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:32,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894916952] [2022-02-10 22:26:32,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:32,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:32,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:32,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:32,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894916952] [2022-02-10 22:26:32,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894916952] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:32,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:32,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:32,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143266758] [2022-02-10 22:26:32,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:32,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:32,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:32,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:32,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:32,202 INFO L87 Difference]: Start difference. First operand 7714 states and 20392 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:32,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:32,656 INFO L93 Difference]: Finished difference Result 9142 states and 24149 transitions. [2022-02-10 22:26:32,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:32,656 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:32,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:32,666 INFO L225 Difference]: With dead ends: 9142 [2022-02-10 22:26:32,666 INFO L226 Difference]: Without dead ends: 8662 [2022-02-10 22:26:32,667 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:32,667 INFO L934 BasicCegarLoop]: 265 mSDtfsCounter, 216 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2999 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:32,667 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2999 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:32,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8662 states. [2022-02-10 22:26:32,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8662 to 7710. [2022-02-10 22:26:32,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643792969256713) internal successors, (20381), 7709 states have internal predecessors, (20381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:32,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20381 transitions. [2022-02-10 22:26:32,754 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20381 transitions. Word has length 109 [2022-02-10 22:26:32,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:32,754 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20381 transitions. [2022-02-10 22:26:32,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:32,754 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20381 transitions. [2022-02-10 22:26:32,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:32,762 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:32,762 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:32,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-02-10 22:26:32,762 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:32,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:32,762 INFO L85 PathProgramCache]: Analyzing trace with hash 759388266, now seen corresponding path program 24 times [2022-02-10 22:26:32,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:32,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710470270] [2022-02-10 22:26:32,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:32,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:32,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:32,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:32,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710470270] [2022-02-10 22:26:32,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710470270] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:32,876 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:32,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:32,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854235208] [2022-02-10 22:26:32,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:32,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:32,876 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:32,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:32,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:32,877 INFO L87 Difference]: Start difference. First operand 7710 states and 20381 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:33,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:33,429 INFO L93 Difference]: Finished difference Result 9178 states and 24244 transitions. [2022-02-10 22:26:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:26:33,430 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:33,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:33,440 INFO L225 Difference]: With dead ends: 9178 [2022-02-10 22:26:33,440 INFO L226 Difference]: Without dead ends: 8658 [2022-02-10 22:26:33,440 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=474, Invalid=1688, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:26:33,441 INFO L934 BasicCegarLoop]: 274 mSDtfsCounter, 305 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:33,441 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 2906 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:33,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2022-02-10 22:26:33,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 7706. [2022-02-10 22:26:33,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643737832576249) internal successors, (20370), 7705 states have internal predecessors, (20370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:33,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20370 transitions. [2022-02-10 22:26:33,529 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20370 transitions. Word has length 109 [2022-02-10 22:26:33,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:33,529 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20370 transitions. [2022-02-10 22:26:33,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:33,530 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20370 transitions. [2022-02-10 22:26:33,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:33,537 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:33,537 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:33,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-02-10 22:26:33,537 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:33,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:33,538 INFO L85 PathProgramCache]: Analyzing trace with hash 234252730, now seen corresponding path program 25 times [2022-02-10 22:26:33,538 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:33,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926143943] [2022-02-10 22:26:33,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:33,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:33,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:33,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926143943] [2022-02-10 22:26:33,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926143943] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:33,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:33,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:33,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112186780] [2022-02-10 22:26:33,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:33,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:33,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:33,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:33,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:33,654 INFO L87 Difference]: Start difference. First operand 7706 states and 20370 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:34,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:34,303 INFO L93 Difference]: Finished difference Result 9406 states and 24843 transitions. [2022-02-10 22:26:34,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:26:34,303 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:34,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:34,315 INFO L225 Difference]: With dead ends: 9406 [2022-02-10 22:26:34,315 INFO L226 Difference]: Without dead ends: 8846 [2022-02-10 22:26:34,316 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2217, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:26:34,316 INFO L934 BasicCegarLoop]: 280 mSDtfsCounter, 365 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:34,316 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 3156 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:34,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2022-02-10 22:26:34,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7702. [2022-02-10 22:26:34,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.6436826386183614) internal successors, (20359), 7701 states have internal predecessors, (20359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:34,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20359 transitions. [2022-02-10 22:26:34,413 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20359 transitions. Word has length 109 [2022-02-10 22:26:34,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:34,413 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20359 transitions. [2022-02-10 22:26:34,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:34,413 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20359 transitions. [2022-02-10 22:26:34,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:34,421 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:34,421 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:34,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-02-10 22:26:34,421 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:34,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:34,422 INFO L85 PathProgramCache]: Analyzing trace with hash 43939326, now seen corresponding path program 26 times [2022-02-10 22:26:34,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:34,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937599428] [2022-02-10 22:26:34,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:34,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:34,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:34,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:34,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937599428] [2022-02-10 22:26:34,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937599428] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:34,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:34,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:34,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532653897] [2022-02-10 22:26:34,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:34,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:34,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:34,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:34,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:34,542 INFO L87 Difference]: Start difference. First operand 7702 states and 20359 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:35,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:35,015 INFO L93 Difference]: Finished difference Result 9152 states and 24168 transitions. [2022-02-10 22:26:35,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:26:35,015 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:35,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:35,027 INFO L225 Difference]: With dead ends: 9152 [2022-02-10 22:26:35,027 INFO L226 Difference]: Without dead ends: 8673 [2022-02-10 22:26:35,027 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=359, Invalid=1047, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:26:35,027 INFO L934 BasicCegarLoop]: 265 mSDtfsCounter, 232 mSDsluCounter, 2619 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:35,027 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 2813 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:35,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8673 states. [2022-02-10 22:26:35,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8673 to 7714. [2022-02-10 22:26:35,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6433294437961883) internal successors, (20388), 7713 states have internal predecessors, (20388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:35,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20388 transitions. [2022-02-10 22:26:35,118 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20388 transitions. Word has length 109 [2022-02-10 22:26:35,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:35,118 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20388 transitions. [2022-02-10 22:26:35,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:35,118 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20388 transitions. [2022-02-10 22:26:35,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:35,126 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:35,126 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:35,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-02-10 22:26:35,126 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:35,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:35,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1671462444, now seen corresponding path program 27 times [2022-02-10 22:26:35,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:35,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621311432] [2022-02-10 22:26:35,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:35,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:35,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:35,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:35,241 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621311432] [2022-02-10 22:26:35,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621311432] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:35,241 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:35,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:35,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273225576] [2022-02-10 22:26:35,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:35,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:35,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:35,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:35,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:35,242 INFO L87 Difference]: Start difference. First operand 7714 states and 20388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:35,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:35,695 INFO L93 Difference]: Finished difference Result 9110 states and 24057 transitions. [2022-02-10 22:26:35,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:35,696 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:35,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:35,706 INFO L225 Difference]: With dead ends: 9110 [2022-02-10 22:26:35,706 INFO L226 Difference]: Without dead ends: 8630 [2022-02-10 22:26:35,707 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=336, Invalid=1146, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:35,707 INFO L934 BasicCegarLoop]: 266 mSDtfsCounter, 232 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:35,707 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 2815 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:35,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8630 states. [2022-02-10 22:26:35,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8630 to 7710. [2022-02-10 22:26:35,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643274095213387) internal successors, (20377), 7709 states have internal predecessors, (20377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:35,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20377 transitions. [2022-02-10 22:26:35,801 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20377 transitions. Word has length 109 [2022-02-10 22:26:35,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:35,801 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20377 transitions. [2022-02-10 22:26:35,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:35,802 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20377 transitions. [2022-02-10 22:26:35,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:35,809 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:35,809 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:35,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-02-10 22:26:35,810 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:35,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:35,810 INFO L85 PathProgramCache]: Analyzing trace with hash 550405104, now seen corresponding path program 28 times [2022-02-10 22:26:35,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:35,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895183764] [2022-02-10 22:26:35,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:35,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:35,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:35,931 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:35,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895183764] [2022-02-10 22:26:35,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895183764] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:35,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:35,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:35,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032227428] [2022-02-10 22:26:35,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:35,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:35,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:35,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:35,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:35,932 INFO L87 Difference]: Start difference. First operand 7710 states and 20377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:36,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:36,472 INFO L93 Difference]: Finished difference Result 9278 states and 24499 transitions. [2022-02-10 22:26:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:26:36,473 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:36,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:36,483 INFO L225 Difference]: With dead ends: 9278 [2022-02-10 22:26:36,483 INFO L226 Difference]: Without dead ends: 8758 [2022-02-10 22:26:36,484 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:26:36,484 INFO L934 BasicCegarLoop]: 272 mSDtfsCounter, 316 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:36,484 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 2884 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:36,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8758 states. [2022-02-10 22:26:36,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8758 to 7706. [2022-02-10 22:26:36,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643218689162881) internal successors, (20366), 7705 states have internal predecessors, (20366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:36,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20366 transitions. [2022-02-10 22:26:36,577 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20366 transitions. Word has length 109 [2022-02-10 22:26:36,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:36,577 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20366 transitions. [2022-02-10 22:26:36,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:36,577 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20366 transitions. [2022-02-10 22:26:36,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:36,585 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:36,585 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:36,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-02-10 22:26:36,585 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:36,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:36,585 INFO L85 PathProgramCache]: Analyzing trace with hash 623034828, now seen corresponding path program 29 times [2022-02-10 22:26:36,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:36,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772636915] [2022-02-10 22:26:36,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:36,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:36,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:36,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:36,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772636915] [2022-02-10 22:26:36,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772636915] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:36,705 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:36,705 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:36,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82138917] [2022-02-10 22:26:36,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:36,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:36,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:36,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:36,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:36,706 INFO L87 Difference]: Start difference. First operand 7706 states and 20366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:37,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:37,276 INFO L93 Difference]: Finished difference Result 9196 states and 24260 transitions. [2022-02-10 22:26:37,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:26:37,277 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:37,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:37,286 INFO L225 Difference]: With dead ends: 9196 [2022-02-10 22:26:37,287 INFO L226 Difference]: Without dead ends: 8674 [2022-02-10 22:26:37,287 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=503, Invalid=1389, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:26:37,287 INFO L934 BasicCegarLoop]: 273 mSDtfsCounter, 291 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:37,287 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2421 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:37,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8674 states. [2022-02-10 22:26:37,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8674 to 7710. [2022-02-10 22:26:37,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642755221170061) internal successors, (20373), 7709 states have internal predecessors, (20373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:37,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20373 transitions. [2022-02-10 22:26:37,436 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20373 transitions. Word has length 109 [2022-02-10 22:26:37,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:37,436 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20373 transitions. [2022-02-10 22:26:37,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:37,437 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20373 transitions. [2022-02-10 22:26:37,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:37,444 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:37,444 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:37,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-02-10 22:26:37,444 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:37,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:37,445 INFO L85 PathProgramCache]: Analyzing trace with hash -934880522, now seen corresponding path program 30 times [2022-02-10 22:26:37,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:37,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603627483] [2022-02-10 22:26:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:37,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:37,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:37,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:37,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603627483] [2022-02-10 22:26:37,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603627483] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:37,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:37,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:37,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62958104] [2022-02-10 22:26:37,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:37,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:37,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:37,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:37,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:37,568 INFO L87 Difference]: Start difference. First operand 7710 states and 20373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:38,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:38,037 INFO L93 Difference]: Finished difference Result 9096 states and 24006 transitions. [2022-02-10 22:26:38,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:38,037 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:38,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:38,047 INFO L225 Difference]: With dead ends: 9096 [2022-02-10 22:26:38,047 INFO L226 Difference]: Without dead ends: 8617 [2022-02-10 22:26:38,048 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=378, Invalid=1104, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:38,048 INFO L934 BasicCegarLoop]: 268 mSDtfsCounter, 220 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:38,048 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2550 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:38,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8617 states. [2022-02-10 22:26:38,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8617 to 7714. [2022-02-10 22:26:38,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6422922338908337) internal successors, (20380), 7713 states have internal predecessors, (20380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:38,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20380 transitions. [2022-02-10 22:26:38,138 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20380 transitions. Word has length 109 [2022-02-10 22:26:38,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:38,138 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20380 transitions. [2022-02-10 22:26:38,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:38,138 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20380 transitions. [2022-02-10 22:26:38,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:38,145 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:38,146 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:38,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-02-10 22:26:38,146 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:38,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:38,146 INFO L85 PathProgramCache]: Analyzing trace with hash 692642596, now seen corresponding path program 31 times [2022-02-10 22:26:38,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:38,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493595954] [2022-02-10 22:26:38,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:38,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:38,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:38,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:38,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493595954] [2022-02-10 22:26:38,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493595954] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:38,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:38,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:38,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848886797] [2022-02-10 22:26:38,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:38,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:38,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:38,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:38,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:38,259 INFO L87 Difference]: Start difference. First operand 7714 states and 20380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:38,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:38,692 INFO L93 Difference]: Finished difference Result 9046 states and 23873 transitions. [2022-02-10 22:26:38,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:26:38,692 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:38,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:38,702 INFO L225 Difference]: With dead ends: 9046 [2022-02-10 22:26:38,702 INFO L226 Difference]: Without dead ends: 8554 [2022-02-10 22:26:38,703 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:26:38,703 INFO L934 BasicCegarLoop]: 267 mSDtfsCounter, 208 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 3007 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:38,703 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 3007 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:38,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2022-02-10 22:26:38,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 7698. [2022-02-10 22:26:38,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643627387293751) internal successors, (20348), 7697 states have internal predecessors, (20348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:38,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20348 transitions. [2022-02-10 22:26:38,792 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20348 transitions. Word has length 109 [2022-02-10 22:26:38,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:38,792 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20348 transitions. [2022-02-10 22:26:38,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:38,793 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20348 transitions. [2022-02-10 22:26:38,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:38,800 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:38,800 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:38,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-02-10 22:26:38,800 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:38,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:38,801 INFO L85 PathProgramCache]: Analyzing trace with hash -567642088, now seen corresponding path program 32 times [2022-02-10 22:26:38,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:38,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348793775] [2022-02-10 22:26:38,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:38,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:38,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:38,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:38,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348793775] [2022-02-10 22:26:38,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348793775] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:38,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:38,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:38,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949941623] [2022-02-10 22:26:38,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:38,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:38,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:38,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:38,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:38,917 INFO L87 Difference]: Start difference. First operand 7698 states and 20348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:39,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:39,363 INFO L93 Difference]: Finished difference Result 8988 states and 23717 transitions. [2022-02-10 22:26:39,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:26:39,363 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:39,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:39,374 INFO L225 Difference]: With dead ends: 8988 [2022-02-10 22:26:39,374 INFO L226 Difference]: Without dead ends: 8509 [2022-02-10 22:26:39,374 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:26:39,374 INFO L934 BasicCegarLoop]: 261 mSDtfsCounter, 209 mSDsluCounter, 2788 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2975 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:39,374 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2975 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:39,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8509 states. [2022-02-10 22:26:39,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8509 to 7714. [2022-02-10 22:26:39,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6433294437961883) internal successors, (20388), 7713 states have internal predecessors, (20388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:39,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20388 transitions. [2022-02-10 22:26:39,463 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20388 transitions. Word has length 109 [2022-02-10 22:26:39,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:39,463 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20388 transitions. [2022-02-10 22:26:39,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:39,463 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20388 transitions. [2022-02-10 22:26:39,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:39,470 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:39,470 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:39,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-02-10 22:26:39,470 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:39,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:39,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1059881030, now seen corresponding path program 33 times [2022-02-10 22:26:39,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:39,471 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629115937] [2022-02-10 22:26:39,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:39,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:39,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:39,583 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:39,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629115937] [2022-02-10 22:26:39,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629115937] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:39,583 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:39,583 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:39,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995154402] [2022-02-10 22:26:39,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:39,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:39,584 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:39,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:39,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:39,584 INFO L87 Difference]: Start difference. First operand 7714 states and 20388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:40,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:40,030 INFO L93 Difference]: Finished difference Result 8958 states and 23639 transitions. [2022-02-10 22:26:40,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:40,031 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:40,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:40,042 INFO L225 Difference]: With dead ends: 8958 [2022-02-10 22:26:40,042 INFO L226 Difference]: Without dead ends: 8478 [2022-02-10 22:26:40,042 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1156, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:40,042 INFO L934 BasicCegarLoop]: 265 mSDtfsCounter, 213 mSDsluCounter, 2811 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:40,042 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 3011 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:40,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8478 states. [2022-02-10 22:26:40,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8478 to 7710. [2022-02-10 22:26:40,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643274095213387) internal successors, (20377), 7709 states have internal predecessors, (20377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20377 transitions. [2022-02-10 22:26:40,133 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20377 transitions. Word has length 109 [2022-02-10 22:26:40,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:40,133 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20377 transitions. [2022-02-10 22:26:40,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20377 transitions. [2022-02-10 22:26:40,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:40,144 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:40,144 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:40,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-02-10 22:26:40,144 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:40,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:40,144 INFO L85 PathProgramCache]: Analyzing trace with hash -61176310, now seen corresponding path program 34 times [2022-02-10 22:26:40,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:40,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855573628] [2022-02-10 22:26:40,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:40,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:40,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:40,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:40,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855573628] [2022-02-10 22:26:40,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855573628] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:40,257 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:40,257 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:40,257 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149286179] [2022-02-10 22:26:40,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:40,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:40,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:40,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:40,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:40,257 INFO L87 Difference]: Start difference. First operand 7710 states and 20377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:40,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:40,806 INFO L93 Difference]: Finished difference Result 8994 states and 23734 transitions. [2022-02-10 22:26:40,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:26:40,807 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:40,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:40,816 INFO L225 Difference]: With dead ends: 8994 [2022-02-10 22:26:40,816 INFO L226 Difference]: Without dead ends: 8474 [2022-02-10 22:26:40,817 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1698, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:26:40,817 INFO L934 BasicCegarLoop]: 274 mSDtfsCounter, 283 mSDsluCounter, 2900 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:40,817 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 3108 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:40,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8474 states. [2022-02-10 22:26:40,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8474 to 7706. [2022-02-10 22:26:40,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643218689162881) internal successors, (20366), 7705 states have internal predecessors, (20366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:40,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20366 transitions. [2022-02-10 22:26:40,905 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20366 transitions. Word has length 109 [2022-02-10 22:26:40,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:40,905 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20366 transitions. [2022-02-10 22:26:40,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:40,905 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20366 transitions. [2022-02-10 22:26:40,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:40,913 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:40,914 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:40,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-02-10 22:26:40,914 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:40,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:40,914 INFO L85 PathProgramCache]: Analyzing trace with hash -586311846, now seen corresponding path program 35 times [2022-02-10 22:26:40,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:40,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747932715] [2022-02-10 22:26:40,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:40,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:41,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:41,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:41,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747932715] [2022-02-10 22:26:41,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747932715] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:41,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:41,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:41,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341560647] [2022-02-10 22:26:41,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:41,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:41,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:41,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:41,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:41,028 INFO L87 Difference]: Start difference. First operand 7706 states and 20366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:41,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:41,687 INFO L93 Difference]: Finished difference Result 9030 states and 23829 transitions. [2022-02-10 22:26:41,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:26:41,687 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:41,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:41,697 INFO L225 Difference]: With dead ends: 9030 [2022-02-10 22:26:41,697 INFO L226 Difference]: Without dead ends: 8470 [2022-02-10 22:26:41,698 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=652, Invalid=2318, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:26:41,698 INFO L934 BasicCegarLoop]: 283 mSDtfsCounter, 340 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 3194 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:41,698 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 3194 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:41,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-02-10 22:26:41,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7702. [2022-02-10 22:26:41,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.6431632255551225) internal successors, (20355), 7701 states have internal predecessors, (20355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20355 transitions. [2022-02-10 22:26:41,789 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20355 transitions. Word has length 109 [2022-02-10 22:26:41,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:41,789 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20355 transitions. [2022-02-10 22:26:41,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:41,790 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20355 transitions. [2022-02-10 22:26:41,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:41,797 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:41,797 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:41,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-02-10 22:26:41,797 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:41,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:41,797 INFO L85 PathProgramCache]: Analyzing trace with hash 65981420, now seen corresponding path program 36 times [2022-02-10 22:26:41,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:41,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996442031] [2022-02-10 22:26:41,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:41,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:41,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:41,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:41,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996442031] [2022-02-10 22:26:41,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996442031] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:41,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:41,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:41,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9698976] [2022-02-10 22:26:41,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:41,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:41,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:41,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:41,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:41,928 INFO L87 Difference]: Start difference. First operand 7702 states and 20355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:42,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:42,657 INFO L93 Difference]: Finished difference Result 9238 states and 24361 transitions. [2022-02-10 22:26:42,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:26:42,657 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:42,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:42,668 INFO L225 Difference]: With dead ends: 9238 [2022-02-10 22:26:42,668 INFO L226 Difference]: Without dead ends: 8634 [2022-02-10 22:26:42,668 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=847, Invalid=2813, Unknown=0, NotChecked=0, Total=3660 [2022-02-10 22:26:42,669 INFO L934 BasicCegarLoop]: 283 mSDtfsCounter, 439 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 3169 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:42,669 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 3169 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:42,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8634 states. [2022-02-10 22:26:42,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8634 to 7694. [2022-02-10 22:26:42,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6435720785129337) internal successors, (20337), 7693 states have internal predecessors, (20337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:42,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20337 transitions. [2022-02-10 22:26:42,757 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20337 transitions. Word has length 109 [2022-02-10 22:26:42,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:42,758 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20337 transitions. [2022-02-10 22:26:42,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:42,758 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20337 transitions. [2022-02-10 22:26:42,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:42,765 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:42,765 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:42,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-02-10 22:26:42,765 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:42,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:42,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1695824410, now seen corresponding path program 37 times [2022-02-10 22:26:42,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:42,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798597628] [2022-02-10 22:26:42,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:42,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:42,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:42,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:42,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798597628] [2022-02-10 22:26:42,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798597628] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:42,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:42,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:42,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145991291] [2022-02-10 22:26:42,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:42,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:42,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:42,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:42,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:42,903 INFO L87 Difference]: Start difference. First operand 7694 states and 20337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:43,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:43,388 INFO L93 Difference]: Finished difference Result 8956 states and 23629 transitions. [2022-02-10 22:26:43,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:26:43,388 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:43,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:43,399 INFO L225 Difference]: With dead ends: 8956 [2022-02-10 22:26:43,399 INFO L226 Difference]: Without dead ends: 8477 [2022-02-10 22:26:43,399 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:26:43,400 INFO L934 BasicCegarLoop]: 262 mSDtfsCounter, 220 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:43,400 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2625 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:43,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8477 states. [2022-02-10 22:26:43,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8477 to 7714. [2022-02-10 22:26:43,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6433294437961883) internal successors, (20388), 7713 states have internal predecessors, (20388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:43,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20388 transitions. [2022-02-10 22:26:43,490 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20388 transitions. Word has length 109 [2022-02-10 22:26:43,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:43,490 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20388 transitions. [2022-02-10 22:26:43,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:43,490 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20388 transitions. [2022-02-10 22:26:43,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:43,499 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:43,499 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:43,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-02-10 22:26:43,499 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:43,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:43,499 INFO L85 PathProgramCache]: Analyzing trace with hash -971619768, now seen corresponding path program 38 times [2022-02-10 22:26:43,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:43,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473872555] [2022-02-10 22:26:43,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:43,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:43,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:43,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:43,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473872555] [2022-02-10 22:26:43,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473872555] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:43,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:43,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:43,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931888086] [2022-02-10 22:26:43,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:43,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:43,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:43,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:43,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:43,621 INFO L87 Difference]: Start difference. First operand 7714 states and 20388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:44,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:44,078 INFO L93 Difference]: Finished difference Result 8922 states and 23540 transitions. [2022-02-10 22:26:44,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:44,079 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:44,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:44,090 INFO L225 Difference]: With dead ends: 8922 [2022-02-10 22:26:44,090 INFO L226 Difference]: Without dead ends: 8442 [2022-02-10 22:26:44,091 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:44,091 INFO L934 BasicCegarLoop]: 264 mSDtfsCounter, 214 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:44,091 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2806 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:44,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2022-02-10 22:26:44,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 7710. [2022-02-10 22:26:44,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643274095213387) internal successors, (20377), 7709 states have internal predecessors, (20377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:44,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20377 transitions. [2022-02-10 22:26:44,200 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20377 transitions. Word has length 109 [2022-02-10 22:26:44,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:44,200 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20377 transitions. [2022-02-10 22:26:44,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:44,200 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20377 transitions. [2022-02-10 22:26:44,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:44,208 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:44,208 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:44,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-02-10 22:26:44,208 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:44,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:44,209 INFO L85 PathProgramCache]: Analyzing trace with hash -2092677108, now seen corresponding path program 39 times [2022-02-10 22:26:44,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:44,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372228254] [2022-02-10 22:26:44,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:44,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:44,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:44,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:44,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372228254] [2022-02-10 22:26:44,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372228254] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:44,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:44,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:44,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948640761] [2022-02-10 22:26:44,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:44,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:44,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:44,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:44,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:44,328 INFO L87 Difference]: Start difference. First operand 7710 states and 20377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:44,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:44,908 INFO L93 Difference]: Finished difference Result 8958 states and 23635 transitions. [2022-02-10 22:26:44,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:26:44,909 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:44,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:44,918 INFO L225 Difference]: With dead ends: 8958 [2022-02-10 22:26:44,918 INFO L226 Difference]: Without dead ends: 8438 [2022-02-10 22:26:44,919 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=485, Invalid=1677, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:26:44,919 INFO L934 BasicCegarLoop]: 273 mSDtfsCounter, 283 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:44,919 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 2895 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:44,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8438 states. [2022-02-10 22:26:44,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8438 to 7706. [2022-02-10 22:26:44,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643218689162881) internal successors, (20366), 7705 states have internal predecessors, (20366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:45,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20366 transitions. [2022-02-10 22:26:45,008 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20366 transitions. Word has length 109 [2022-02-10 22:26:45,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:45,008 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20366 transitions. [2022-02-10 22:26:45,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:45,008 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20366 transitions. [2022-02-10 22:26:45,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:45,017 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:45,017 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:45,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-02-10 22:26:45,017 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:45,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:45,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1677154652, now seen corresponding path program 40 times [2022-02-10 22:26:45,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:45,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127062358] [2022-02-10 22:26:45,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:45,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:45,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:45,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:45,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127062358] [2022-02-10 22:26:45,128 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127062358] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:45,128 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:45,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:45,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876001545] [2022-02-10 22:26:45,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:45,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:45,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:45,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:45,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:45,128 INFO L87 Difference]: Start difference. First operand 7706 states and 20366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:45,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:45,748 INFO L93 Difference]: Finished difference Result 9102 states and 24003 transitions. [2022-02-10 22:26:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:26:45,749 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:45,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:45,759 INFO L225 Difference]: With dead ends: 9102 [2022-02-10 22:26:45,759 INFO L226 Difference]: Without dead ends: 8542 [2022-02-10 22:26:45,760 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=639, Invalid=2117, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:26:45,760 INFO L934 BasicCegarLoop]: 278 mSDtfsCounter, 356 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:45,760 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 2936 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:45,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8542 states. [2022-02-10 22:26:45,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8542 to 7702. [2022-02-10 22:26:45,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.6431632255551225) internal successors, (20355), 7701 states have internal predecessors, (20355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:45,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20355 transitions. [2022-02-10 22:26:45,852 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20355 transitions. Word has length 109 [2022-02-10 22:26:45,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:45,853 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20355 transitions. [2022-02-10 22:26:45,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20355 transitions. [2022-02-10 22:26:45,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:45,861 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:45,861 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:45,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-02-10 22:26:45,861 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:45,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:45,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1486841248, now seen corresponding path program 41 times [2022-02-10 22:26:45,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:45,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710406021] [2022-02-10 22:26:45,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:45,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:45,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:45,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:45,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710406021] [2022-02-10 22:26:45,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710406021] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:45,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:45,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:45,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016692981] [2022-02-10 22:26:45,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:45,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:45,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:45,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:45,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:45,972 INFO L87 Difference]: Start difference. First operand 7702 states and 20355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:46,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:46,418 INFO L93 Difference]: Finished difference Result 9028 states and 23823 transitions. [2022-02-10 22:26:46,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:26:46,418 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:46,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:46,429 INFO L225 Difference]: With dead ends: 9028 [2022-02-10 22:26:46,429 INFO L226 Difference]: Without dead ends: 8549 [2022-02-10 22:26:46,429 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:46,429 INFO L934 BasicCegarLoop]: 260 mSDtfsCounter, 242 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:46,429 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2610 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:46,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8549 states. [2022-02-10 22:26:46,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8549 to 7714. [2022-02-10 22:26:46,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.642810838843511) internal successors, (20384), 7713 states have internal predecessors, (20384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:46,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20384 transitions. [2022-02-10 22:26:46,520 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20384 transitions. Word has length 109 [2022-02-10 22:26:46,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:46,520 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20384 transitions. [2022-02-10 22:26:46,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:46,520 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20384 transitions. [2022-02-10 22:26:46,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:46,528 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:46,528 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:46,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-02-10 22:26:46,528 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:46,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:46,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1180602930, now seen corresponding path program 42 times [2022-02-10 22:26:46,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:46,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575050267] [2022-02-10 22:26:46,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:46,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:46,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:46,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:46,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575050267] [2022-02-10 22:26:46,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575050267] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:46,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:46,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:46,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548231169] [2022-02-10 22:26:46,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:46,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:46,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:46,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:46,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:46,640 INFO L87 Difference]: Start difference. First operand 7714 states and 20384 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:47,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:47,088 INFO L93 Difference]: Finished difference Result 8986 states and 23712 transitions. [2022-02-10 22:26:47,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:47,088 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:47,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:47,099 INFO L225 Difference]: With dead ends: 8986 [2022-02-10 22:26:47,099 INFO L226 Difference]: Without dead ends: 8506 [2022-02-10 22:26:47,100 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:47,100 INFO L934 BasicCegarLoop]: 261 mSDtfsCounter, 239 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:47,100 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 2603 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:47,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8506 states. [2022-02-10 22:26:47,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8506 to 7710. [2022-02-10 22:26:47,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642755221170061) internal successors, (20373), 7709 states have internal predecessors, (20373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:47,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20373 transitions. [2022-02-10 22:26:47,188 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20373 transitions. Word has length 109 [2022-02-10 22:26:47,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:47,188 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20373 transitions. [2022-02-10 22:26:47,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:47,188 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20373 transitions. [2022-02-10 22:26:47,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:47,196 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:47,196 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:47,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-02-10 22:26:47,196 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:47,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:47,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1993307026, now seen corresponding path program 43 times [2022-02-10 22:26:47,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:47,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297788956] [2022-02-10 22:26:47,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:47,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:47,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:47,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:47,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297788956] [2022-02-10 22:26:47,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297788956] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:47,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:47,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:47,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520055262] [2022-02-10 22:26:47,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:47,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:47,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:47,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:47,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:47,307 INFO L87 Difference]: Start difference. First operand 7710 states and 20373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:47,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:47,839 INFO L93 Difference]: Finished difference Result 9114 states and 24044 transitions. [2022-02-10 22:26:47,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:26:47,839 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:47,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:47,849 INFO L225 Difference]: With dead ends: 9114 [2022-02-10 22:26:47,849 INFO L226 Difference]: Without dead ends: 8594 [2022-02-10 22:26:47,849 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:26:47,850 INFO L934 BasicCegarLoop]: 266 mSDtfsCounter, 308 mSDsluCounter, 2833 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:47,850 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 3033 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:47,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8594 states. [2022-02-10 22:26:47,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8594 to 7706. [2022-02-10 22:26:47,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.6426995457495135) internal successors, (20362), 7705 states have internal predecessors, (20362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:47,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20362 transitions. [2022-02-10 22:26:47,939 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20362 transitions. Word has length 109 [2022-02-10 22:26:47,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:47,939 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20362 transitions. [2022-02-10 22:26:47,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:47,939 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20362 transitions. [2022-02-10 22:26:47,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:47,947 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:47,947 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:47,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-02-10 22:26:47,947 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:47,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:47,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2065936750, now seen corresponding path program 44 times [2022-02-10 22:26:47,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:47,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909015608] [2022-02-10 22:26:47,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:47,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:48,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:48,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:48,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909015608] [2022-02-10 22:26:48,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909015608] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:48,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:48,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:48,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079582175] [2022-02-10 22:26:48,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:48,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:48,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:48,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:48,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:48,065 INFO L87 Difference]: Start difference. First operand 7706 states and 20362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:48,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:48,665 INFO L93 Difference]: Finished difference Result 9116 states and 24036 transitions. [2022-02-10 22:26:48,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:26:48,665 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:48,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:48,676 INFO L225 Difference]: With dead ends: 9116 [2022-02-10 22:26:48,676 INFO L226 Difference]: Without dead ends: 8594 [2022-02-10 22:26:48,676 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=515, Invalid=1465, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:26:48,676 INFO L934 BasicCegarLoop]: 270 mSDtfsCounter, 289 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:48,676 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 2865 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:48,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8594 states. [2022-02-10 22:26:48,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8594 to 7710. [2022-02-10 22:26:48,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642236347126735) internal successors, (20369), 7709 states have internal predecessors, (20369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:48,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20369 transitions. [2022-02-10 22:26:48,766 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20369 transitions. Word has length 109 [2022-02-10 22:26:48,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:48,766 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20369 transitions. [2022-02-10 22:26:48,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:48,766 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20369 transitions. [2022-02-10 22:26:48,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:48,774 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:48,774 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:48,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-02-10 22:26:48,774 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:48,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:48,774 INFO L85 PathProgramCache]: Analyzing trace with hash 508021400, now seen corresponding path program 45 times [2022-02-10 22:26:48,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:48,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339003770] [2022-02-10 22:26:48,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:48,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:48,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:48,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:48,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339003770] [2022-02-10 22:26:48,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339003770] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:48,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:48,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:48,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763271667] [2022-02-10 22:26:48,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:48,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:48,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:48,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:48,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:48,890 INFO L87 Difference]: Start difference. First operand 7710 states and 20369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:49,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:49,355 INFO L93 Difference]: Finished difference Result 8968 states and 23650 transitions. [2022-02-10 22:26:49,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:49,355 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:49,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:49,365 INFO L225 Difference]: With dead ends: 8968 [2022-02-10 22:26:49,365 INFO L226 Difference]: Without dead ends: 8489 [2022-02-10 22:26:49,365 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=374, Invalid=1108, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:49,365 INFO L934 BasicCegarLoop]: 263 mSDtfsCounter, 226 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:49,365 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2518 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:49,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8489 states. [2022-02-10 22:26:49,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8489 to 7714. [2022-02-10 22:26:49,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6417736289381564) internal successors, (20376), 7713 states have internal predecessors, (20376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:49,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20376 transitions. [2022-02-10 22:26:49,454 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20376 transitions. Word has length 109 [2022-02-10 22:26:49,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:49,454 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20376 transitions. [2022-02-10 22:26:49,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:49,454 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20376 transitions. [2022-02-10 22:26:49,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:49,462 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:49,462 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:49,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-02-10 22:26:49,462 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:49,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:49,462 INFO L85 PathProgramCache]: Analyzing trace with hash 2135544518, now seen corresponding path program 46 times [2022-02-10 22:26:49,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:49,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253608104] [2022-02-10 22:26:49,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:49,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:49,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:49,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:49,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253608104] [2022-02-10 22:26:49,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253608104] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:49,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:49,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:49,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969820158] [2022-02-10 22:26:49,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:49,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:49,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:49,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:49,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:49,577 INFO L87 Difference]: Start difference. First operand 7714 states and 20376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:50,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:50,009 INFO L93 Difference]: Finished difference Result 8886 states and 23429 transitions. [2022-02-10 22:26:50,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:26:50,010 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:50,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:50,022 INFO L225 Difference]: With dead ends: 8886 [2022-02-10 22:26:50,022 INFO L226 Difference]: Without dead ends: 8394 [2022-02-10 22:26:50,023 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:26:50,023 INFO L934 BasicCegarLoop]: 258 mSDtfsCounter, 213 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2944 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:50,023 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2944 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:50,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8394 states. [2022-02-10 22:26:50,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8394 to 7698. [2022-02-10 22:26:50,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:50,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-02-10 22:26:50,112 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-02-10 22:26:50,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:50,112 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-02-10 22:26:50,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:50,112 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-02-10 22:26:50,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:50,119 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:50,120 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:50,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-02-10 22:26:50,120 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:50,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:50,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1438805144, now seen corresponding path program 47 times [2022-02-10 22:26:50,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:50,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621007533] [2022-02-10 22:26:50,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:50,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:50,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:50,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:50,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621007533] [2022-02-10 22:26:50,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621007533] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:50,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:50,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:50,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231050970] [2022-02-10 22:26:50,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:50,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:50,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:50,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:50,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:50,234 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:50,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:50,716 INFO L93 Difference]: Finished difference Result 8924 states and 23537 transitions. [2022-02-10 22:26:50,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:26:50,717 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:50,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:50,727 INFO L225 Difference]: With dead ends: 8924 [2022-02-10 22:26:50,727 INFO L226 Difference]: Without dead ends: 8445 [2022-02-10 22:26:50,727 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:26:50,727 INFO L934 BasicCegarLoop]: 258 mSDtfsCounter, 247 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:50,727 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 2207 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:50,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8445 states. [2022-02-10 22:26:50,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8445 to 7714. [2022-02-10 22:26:50,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.642810838843511) internal successors, (20384), 7713 states have internal predecessors, (20384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:50,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20384 transitions. [2022-02-10 22:26:50,823 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20384 transitions. Word has length 109 [2022-02-10 22:26:50,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:50,824 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20384 transitions. [2022-02-10 22:26:50,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:50,824 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20384 transitions. [2022-02-10 22:26:50,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:50,831 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:50,831 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:50,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-02-10 22:26:50,831 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:50,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:50,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1228639034, now seen corresponding path program 48 times [2022-02-10 22:26:50,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:50,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604368887] [2022-02-10 22:26:50,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:50,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:50,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:50,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:50,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604368887] [2022-02-10 22:26:50,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604368887] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:50,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:50,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:50,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993606429] [2022-02-10 22:26:50,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:50,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:50,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:50,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:50,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:50,943 INFO L87 Difference]: Start difference. First operand 7714 states and 20384 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:51,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:51,398 INFO L93 Difference]: Finished difference Result 8882 states and 23426 transitions. [2022-02-10 22:26:51,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:51,398 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:51,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:51,408 INFO L225 Difference]: With dead ends: 8882 [2022-02-10 22:26:51,408 INFO L226 Difference]: Without dead ends: 8402 [2022-02-10 22:26:51,408 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=348, Invalid=1134, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:51,408 INFO L934 BasicCegarLoop]: 259 mSDtfsCounter, 226 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2586 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:51,409 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2586 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:51,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8402 states. [2022-02-10 22:26:51,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8402 to 7710. [2022-02-10 22:26:51,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642755221170061) internal successors, (20373), 7709 states have internal predecessors, (20373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:51,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20373 transitions. [2022-02-10 22:26:51,495 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20373 transitions. Word has length 109 [2022-02-10 22:26:51,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:51,495 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20373 transitions. [2022-02-10 22:26:51,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:51,495 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20373 transitions. [2022-02-10 22:26:51,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:51,503 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:51,503 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:51,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-02-10 22:26:51,503 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:51,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:51,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1945270922, now seen corresponding path program 49 times [2022-02-10 22:26:51,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:51,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340248209] [2022-02-10 22:26:51,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:51,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:51,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:51,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:51,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340248209] [2022-02-10 22:26:51,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340248209] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:51,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:51,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:51,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733640418] [2022-02-10 22:26:51,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:51,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:51,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:51,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:51,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:51,657 INFO L87 Difference]: Start difference. First operand 7710 states and 20373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:52,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:52,162 INFO L93 Difference]: Finished difference Result 8990 states and 23703 transitions. [2022-02-10 22:26:52,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:26:52,162 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:52,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:52,171 INFO L225 Difference]: With dead ends: 8990 [2022-02-10 22:26:52,171 INFO L226 Difference]: Without dead ends: 8470 [2022-02-10 22:26:52,172 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:26:52,172 INFO L934 BasicCegarLoop]: 264 mSDtfsCounter, 313 mSDsluCounter, 2239 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 2446 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:52,172 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 2446 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:52,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-02-10 22:26:52,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7706. [2022-02-10 22:26:52,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.6426995457495135) internal successors, (20362), 7705 states have internal predecessors, (20362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:52,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20362 transitions. [2022-02-10 22:26:52,259 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20362 transitions. Word has length 109 [2022-02-10 22:26:52,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:52,259 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20362 transitions. [2022-02-10 22:26:52,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:52,259 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20362 transitions. [2022-02-10 22:26:52,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:52,267 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:52,267 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:52,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-02-10 22:26:52,267 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:52,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:52,267 INFO L85 PathProgramCache]: Analyzing trace with hash 2017900646, now seen corresponding path program 50 times [2022-02-10 22:26:52,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:52,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230469833] [2022-02-10 22:26:52,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:52,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:52,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:52,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230469833] [2022-02-10 22:26:52,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230469833] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:52,380 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:52,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:52,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013302747] [2022-02-10 22:26:52,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:52,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:52,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:52,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:52,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:52,381 INFO L87 Difference]: Start difference. First operand 7706 states and 20362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:52,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:52,972 INFO L93 Difference]: Finished difference Result 9088 states and 23959 transitions. [2022-02-10 22:26:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:26:52,972 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:52,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:52,982 INFO L225 Difference]: With dead ends: 9088 [2022-02-10 22:26:52,982 INFO L226 Difference]: Without dead ends: 8566 [2022-02-10 22:26:52,982 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=1542, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:26:52,983 INFO L934 BasicCegarLoop]: 265 mSDtfsCounter, 329 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:52,983 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 2616 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:52,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8566 states. [2022-02-10 22:26:53,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8566 to 7710. [2022-02-10 22:26:53,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642236347126735) internal successors, (20369), 7709 states have internal predecessors, (20369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:53,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20369 transitions. [2022-02-10 22:26:53,070 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20369 transitions. Word has length 109 [2022-02-10 22:26:53,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:53,070 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20369 transitions. [2022-02-10 22:26:53,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:53,070 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20369 transitions. [2022-02-10 22:26:53,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:53,078 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:53,078 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:53,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-02-10 22:26:53,078 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:53,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:53,078 INFO L85 PathProgramCache]: Analyzing trace with hash 459985296, now seen corresponding path program 51 times [2022-02-10 22:26:53,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:53,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355199013] [2022-02-10 22:26:53,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:53,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:53,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:53,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:53,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355199013] [2022-02-10 22:26:53,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355199013] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:53,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:53,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:53,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525389148] [2022-02-10 22:26:53,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:53,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:53,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:53,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:53,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:53,190 INFO L87 Difference]: Start difference. First operand 7710 states and 20369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:53,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:53,639 INFO L93 Difference]: Finished difference Result 8924 states and 23529 transitions. [2022-02-10 22:26:53,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:53,639 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:53,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:53,649 INFO L225 Difference]: With dead ends: 8924 [2022-02-10 22:26:53,649 INFO L226 Difference]: Without dead ends: 8445 [2022-02-10 22:26:53,650 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=370, Invalid=1112, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:53,650 INFO L934 BasicCegarLoop]: 257 mSDtfsCounter, 264 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:53,650 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 2150 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:53,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8445 states. [2022-02-10 22:26:53,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8445 to 7714. [2022-02-10 22:26:53,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6417736289381564) internal successors, (20376), 7713 states have internal predecessors, (20376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:53,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20376 transitions. [2022-02-10 22:26:53,746 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20376 transitions. Word has length 109 [2022-02-10 22:26:53,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:53,746 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20376 transitions. [2022-02-10 22:26:53,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:53,746 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20376 transitions. [2022-02-10 22:26:53,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:53,754 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:53,754 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:53,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-02-10 22:26:53,754 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:53,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:53,754 INFO L85 PathProgramCache]: Analyzing trace with hash 2087508414, now seen corresponding path program 52 times [2022-02-10 22:26:53,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:53,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733629533] [2022-02-10 22:26:53,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:53,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:53,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:53,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:53,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733629533] [2022-02-10 22:26:53,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733629533] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:53,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:53,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:53,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115584392] [2022-02-10 22:26:53,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:53,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:53,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:53,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:53,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:53,864 INFO L87 Difference]: Start difference. First operand 7714 states and 20376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:54,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:54,283 INFO L93 Difference]: Finished difference Result 8858 states and 23352 transitions. [2022-02-10 22:26:54,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:26:54,283 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:54,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:54,294 INFO L225 Difference]: With dead ends: 8858 [2022-02-10 22:26:54,294 INFO L226 Difference]: Without dead ends: 8370 [2022-02-10 22:26:54,294 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:26:54,294 INFO L934 BasicCegarLoop]: 251 mSDtfsCounter, 245 mSDsluCounter, 2533 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:54,295 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 2722 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:54,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8370 states. [2022-02-10 22:26:54,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8370 to 7702. [2022-02-10 22:26:54,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.642643812491884) internal successors, (20351), 7701 states have internal predecessors, (20351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20351 transitions. [2022-02-10 22:26:54,391 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20351 transitions. Word has length 109 [2022-02-10 22:26:54,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:54,391 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20351 transitions. [2022-02-10 22:26:54,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:54,391 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20351 transitions. [2022-02-10 22:26:54,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:54,400 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:54,400 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:54,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-02-10 22:26:54,400 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:54,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:54,400 INFO L85 PathProgramCache]: Analyzing trace with hash 805164314, now seen corresponding path program 53 times [2022-02-10 22:26:54,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:54,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424738913] [2022-02-10 22:26:54,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:54,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:54,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:54,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:54,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424738913] [2022-02-10 22:26:54,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424738913] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:54,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:54,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:54,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009414799] [2022-02-10 22:26:54,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:54,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:54,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:54,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:54,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:54,519 INFO L87 Difference]: Start difference. First operand 7702 states and 20351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:55,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:55,208 INFO L93 Difference]: Finished difference Result 9025 states and 23767 transitions. [2022-02-10 22:26:55,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 22:26:55,209 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:55,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:55,219 INFO L225 Difference]: With dead ends: 9025 [2022-02-10 22:26:55,219 INFO L226 Difference]: Without dead ends: 8460 [2022-02-10 22:26:55,220 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=681, Invalid=1869, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 22:26:55,220 INFO L934 BasicCegarLoop]: 265 mSDtfsCounter, 389 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:55,220 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 2374 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:55,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8460 states. [2022-02-10 22:26:55,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8460 to 7706. [2022-02-10 22:26:55,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.6421804023361455) internal successors, (20358), 7705 states have internal predecessors, (20358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:55,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20358 transitions. [2022-02-10 22:26:55,312 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20358 transitions. Word has length 109 [2022-02-10 22:26:55,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:55,312 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20358 transitions. [2022-02-10 22:26:55,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:55,312 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20358 transitions. [2022-02-10 22:26:55,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:55,319 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:55,320 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:55,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-02-10 22:26:55,320 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:55,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:55,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1669595376, now seen corresponding path program 54 times [2022-02-10 22:26:55,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:55,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787185483] [2022-02-10 22:26:55,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:55,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:55,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:55,431 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:55,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787185483] [2022-02-10 22:26:55,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787185483] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:55,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:55,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:55,432 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446118655] [2022-02-10 22:26:55,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:55,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:55,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:55,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:55,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:55,432 INFO L87 Difference]: Start difference. First operand 7706 states and 20358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:56,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:56,058 INFO L93 Difference]: Finished difference Result 8920 states and 23493 transitions. [2022-02-10 22:26:56,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:26:56,058 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:56,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:56,070 INFO L225 Difference]: With dead ends: 8920 [2022-02-10 22:26:56,070 INFO L226 Difference]: Without dead ends: 8398 [2022-02-10 22:26:56,070 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:26:56,071 INFO L934 BasicCegarLoop]: 265 mSDtfsCounter, 342 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 2774 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:56,071 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 2774 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:56,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8398 states. [2022-02-10 22:26:56,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8398 to 7710. [2022-02-10 22:26:56,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.641717473083409) internal successors, (20365), 7709 states have internal predecessors, (20365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:56,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20365 transitions. [2022-02-10 22:26:56,170 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20365 transitions. Word has length 109 [2022-02-10 22:26:56,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:56,171 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20365 transitions. [2022-02-10 22:26:56,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:56,171 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20365 transitions. [2022-02-10 22:26:56,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:56,179 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:56,179 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:56,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-02-10 22:26:56,179 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:56,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:56,179 INFO L85 PathProgramCache]: Analyzing trace with hash 111680026, now seen corresponding path program 55 times [2022-02-10 22:26:56,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:56,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702429412] [2022-02-10 22:26:56,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:56,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:56,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:56,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:56,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702429412] [2022-02-10 22:26:56,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702429412] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:56,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:56,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:56,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371385636] [2022-02-10 22:26:56,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:56,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:56,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:56,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:56,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:56,293 INFO L87 Difference]: Start difference. First operand 7710 states and 20365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:56,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:56,742 INFO L93 Difference]: Finished difference Result 8796 states and 23173 transitions. [2022-02-10 22:26:56,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:56,742 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:56,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:56,752 INFO L225 Difference]: With dead ends: 8796 [2022-02-10 22:26:56,752 INFO L226 Difference]: Without dead ends: 8317 [2022-02-10 22:26:56,752 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=366, Invalid=1116, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:26:56,752 INFO L934 BasicCegarLoop]: 253 mSDtfsCounter, 279 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:56,753 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 2227 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:56,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8317 states. [2022-02-10 22:26:56,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8317 to 7714. [2022-02-10 22:26:56,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.641255023985479) internal successors, (20372), 7713 states have internal predecessors, (20372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:56,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20372 transitions. [2022-02-10 22:26:56,843 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20372 transitions. Word has length 109 [2022-02-10 22:26:56,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:56,843 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20372 transitions. [2022-02-10 22:26:56,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:56,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20372 transitions. [2022-02-10 22:26:56,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:56,851 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:56,851 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:56,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-02-10 22:26:56,851 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:56,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:56,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1739203144, now seen corresponding path program 56 times [2022-02-10 22:26:56,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:56,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060753103] [2022-02-10 22:26:56,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:56,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:56,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:56,968 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:56,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060753103] [2022-02-10 22:26:56,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060753103] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:56,968 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:56,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:56,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669876376] [2022-02-10 22:26:56,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:56,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:56,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:56,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:56,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:56,969 INFO L87 Difference]: Start difference. First operand 7714 states and 20372 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:57,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:57,347 INFO L93 Difference]: Finished difference Result 8662 states and 22809 transitions. [2022-02-10 22:26:57,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:26:57,348 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:57,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:57,358 INFO L225 Difference]: With dead ends: 8662 [2022-02-10 22:26:57,358 INFO L226 Difference]: Without dead ends: 8142 [2022-02-10 22:26:57,359 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:26:57,359 INFO L934 BasicCegarLoop]: 247 mSDtfsCounter, 224 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:57,359 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 1918 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:57,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8142 states. [2022-02-10 22:26:57,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8142 to 7670. [2022-02-10 22:26:57,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7670 states, 7669 states have (on average 2.643760594601643) internal successors, (20275), 7669 states have internal predecessors, (20275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:57,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7670 states to 7670 states and 20275 transitions. [2022-02-10 22:26:57,445 INFO L78 Accepts]: Start accepts. Automaton has 7670 states and 20275 transitions. Word has length 109 [2022-02-10 22:26:57,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:57,445 INFO L470 AbstractCegarLoop]: Abstraction has 7670 states and 20275 transitions. [2022-02-10 22:26:57,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:57,445 INFO L276 IsEmpty]: Start isEmpty. Operand 7670 states and 20275 transitions. [2022-02-10 22:26:57,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:57,453 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:57,453 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:57,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-02-10 22:26:57,453 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:57,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:57,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1409171550, now seen corresponding path program 57 times [2022-02-10 22:26:57,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:57,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012124426] [2022-02-10 22:26:57,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:57,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:57,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:57,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:57,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012124426] [2022-02-10 22:26:57,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012124426] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:57,607 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:57,607 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:57,607 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685994394] [2022-02-10 22:26:57,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:57,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:57,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:57,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:57,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:57,607 INFO L87 Difference]: Start difference. First operand 7670 states and 20275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:58,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:58,050 INFO L93 Difference]: Finished difference Result 9236 states and 24403 transitions. [2022-02-10 22:26:58,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:26:58,050 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:58,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:58,060 INFO L225 Difference]: With dead ends: 9236 [2022-02-10 22:26:58,060 INFO L226 Difference]: Without dead ends: 8757 [2022-02-10 22:26:58,061 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=315, Invalid=945, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:26:58,061 INFO L934 BasicCegarLoop]: 252 mSDtfsCounter, 197 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:58,061 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 2656 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:58,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8757 states. [2022-02-10 22:26:58,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8757 to 7698. [2022-02-10 22:26:58,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643627387293751) internal successors, (20348), 7697 states have internal predecessors, (20348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:58,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20348 transitions. [2022-02-10 22:26:58,148 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20348 transitions. Word has length 109 [2022-02-10 22:26:58,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:58,148 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20348 transitions. [2022-02-10 22:26:58,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:58,148 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20348 transitions. [2022-02-10 22:26:58,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:58,155 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:58,155 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:58,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-02-10 22:26:58,156 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:58,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:58,156 INFO L85 PathProgramCache]: Analyzing trace with hash 218351568, now seen corresponding path program 58 times [2022-02-10 22:26:58,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:58,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526094257] [2022-02-10 22:26:58,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:58,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:58,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:58,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:58,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526094257] [2022-02-10 22:26:58,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526094257] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:58,277 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:58,277 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:58,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649729719] [2022-02-10 22:26:58,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:58,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:58,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:58,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:58,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:58,277 INFO L87 Difference]: Start difference. First operand 7698 states and 20348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:58,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:58,727 INFO L93 Difference]: Finished difference Result 9202 states and 24314 transitions. [2022-02-10 22:26:58,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:26:58,727 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:58,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:58,738 INFO L225 Difference]: With dead ends: 9202 [2022-02-10 22:26:58,738 INFO L226 Difference]: Without dead ends: 8722 [2022-02-10 22:26:58,738 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=1094, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:26:58,738 INFO L934 BasicCegarLoop]: 254 mSDtfsCounter, 216 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:58,738 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2713 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:58,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8722 states. [2022-02-10 22:26:58,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8722 to 7694. [2022-02-10 22:26:58,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6435720785129337) internal successors, (20337), 7693 states have internal predecessors, (20337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:58,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20337 transitions. [2022-02-10 22:26:58,858 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20337 transitions. Word has length 109 [2022-02-10 22:26:58,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:58,858 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20337 transitions. [2022-02-10 22:26:58,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:58,858 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20337 transitions. [2022-02-10 22:26:58,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:58,866 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:58,866 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:58,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-02-10 22:26:58,866 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:58,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:58,866 INFO L85 PathProgramCache]: Analyzing trace with hash -902705772, now seen corresponding path program 59 times [2022-02-10 22:26:58,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:58,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068425096] [2022-02-10 22:26:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:58,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:58,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:58,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:58,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068425096] [2022-02-10 22:26:58,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068425096] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:58,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:58,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:58,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138979951] [2022-02-10 22:26:58,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:58,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:58,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:58,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:58,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:58,982 INFO L87 Difference]: Start difference. First operand 7694 states and 20337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:59,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:59,528 INFO L93 Difference]: Finished difference Result 9238 states and 24409 transitions. [2022-02-10 22:26:59,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:26:59,529 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:26:59,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:59,539 INFO L225 Difference]: With dead ends: 9238 [2022-02-10 22:26:59,539 INFO L226 Difference]: Without dead ends: 8718 [2022-02-10 22:26:59,539 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1616, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:26:59,540 INFO L934 BasicCegarLoop]: 263 mSDtfsCounter, 270 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2966 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:59,540 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2966 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:26:59,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8718 states. [2022-02-10 22:26:59,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8718 to 7690. [2022-02-10 22:26:59,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.64351671218624) internal successors, (20326), 7689 states have internal predecessors, (20326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:59,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20326 transitions. [2022-02-10 22:26:59,628 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20326 transitions. Word has length 109 [2022-02-10 22:26:59,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:59,628 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20326 transitions. [2022-02-10 22:26:59,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:59,628 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20326 transitions. [2022-02-10 22:26:59,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:26:59,635 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:59,636 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:59,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-02-10 22:26:59,636 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:59,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:59,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1427841308, now seen corresponding path program 60 times [2022-02-10 22:26:59,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:59,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41281453] [2022-02-10 22:26:59,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:59,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:59,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:59,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:59,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41281453] [2022-02-10 22:26:59,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41281453] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:59,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:59,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:26:59,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322139232] [2022-02-10 22:26:59,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:59,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:26:59,751 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:59,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:26:59,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:26:59,751 INFO L87 Difference]: Start difference. First operand 7690 states and 20326 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:00,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:00,383 INFO L93 Difference]: Finished difference Result 9466 states and 25008 transitions. [2022-02-10 22:27:00,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:27:00,383 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:00,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:00,394 INFO L225 Difference]: With dead ends: 9466 [2022-02-10 22:27:00,394 INFO L226 Difference]: Without dead ends: 8906 [2022-02-10 22:27:00,394 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=625, Invalid=2131, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:27:00,394 INFO L934 BasicCegarLoop]: 269 mSDtfsCounter, 359 mSDsluCounter, 2640 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:00,394 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 2855 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:00,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8906 states. [2022-02-10 22:27:00,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8906 to 7686. [2022-02-10 22:27:00,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6434612882238127) internal successors, (20315), 7685 states have internal predecessors, (20315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:00,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20315 transitions. [2022-02-10 22:27:00,486 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20315 transitions. Word has length 109 [2022-02-10 22:27:00,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:00,486 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20315 transitions. [2022-02-10 22:27:00,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:00,486 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20315 transitions. [2022-02-10 22:27:00,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:00,497 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:00,497 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:00,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-02-10 22:27:00,497 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:00,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:00,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1618154712, now seen corresponding path program 61 times [2022-02-10 22:27:00,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:00,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30203372] [2022-02-10 22:27:00,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:00,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:00,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:00,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:00,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30203372] [2022-02-10 22:27:00,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30203372] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:00,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:00,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:00,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134487346] [2022-02-10 22:27:00,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:00,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:00,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:00,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:00,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:00,622 INFO L87 Difference]: Start difference. First operand 7686 states and 20315 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:01,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:01,092 INFO L93 Difference]: Finished difference Result 9212 states and 24333 transitions. [2022-02-10 22:27:01,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:27:01,093 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:01,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:01,103 INFO L225 Difference]: With dead ends: 9212 [2022-02-10 22:27:01,103 INFO L226 Difference]: Without dead ends: 8733 [2022-02-10 22:27:01,103 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1001, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:27:01,103 INFO L934 BasicCegarLoop]: 254 mSDtfsCounter, 200 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:01,103 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2869 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:01,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8733 states. [2022-02-10 22:27:01,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8733 to 7698. [2022-02-10 22:27:01,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:01,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-02-10 22:27:01,191 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-02-10 22:27:01,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:01,191 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-02-10 22:27:01,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:01,191 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-02-10 22:27:01,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:01,198 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:01,198 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:01,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-02-10 22:27:01,198 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:01,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:01,199 INFO L85 PathProgramCache]: Analyzing trace with hash 9368406, now seen corresponding path program 62 times [2022-02-10 22:27:01,199 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:01,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603918235] [2022-02-10 22:27:01,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:01,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:01,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:01,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:01,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603918235] [2022-02-10 22:27:01,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603918235] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:01,344 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:01,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:01,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885625806] [2022-02-10 22:27:01,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:01,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:01,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:01,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:01,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:01,345 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:01,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:01,826 INFO L93 Difference]: Finished difference Result 9170 states and 24222 transitions. [2022-02-10 22:27:01,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:01,826 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:01,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:01,837 INFO L225 Difference]: With dead ends: 9170 [2022-02-10 22:27:01,837 INFO L226 Difference]: Without dead ends: 8690 [2022-02-10 22:27:01,837 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:01,838 INFO L934 BasicCegarLoop]: 255 mSDtfsCounter, 200 mSDsluCounter, 2666 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:01,838 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2867 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:27:01,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2022-02-10 22:27:01,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 7694. [2022-02-10 22:27:01,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:01,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-02-10 22:27:01,932 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-02-10 22:27:01,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:01,932 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-02-10 22:27:01,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:01,932 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-02-10 22:27:01,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:01,940 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:01,940 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:01,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-02-10 22:27:01,940 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:01,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:01,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1111688934, now seen corresponding path program 63 times [2022-02-10 22:27:01,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:01,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308451217] [2022-02-10 22:27:01,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:01,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:02,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:02,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:02,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308451217] [2022-02-10 22:27:02,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308451217] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:02,061 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:02,061 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:02,061 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719315658] [2022-02-10 22:27:02,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:02,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:02,061 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:02,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:02,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:02,062 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:02,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:02,600 INFO L93 Difference]: Finished difference Result 9338 states and 24664 transitions. [2022-02-10 22:27:02,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:27:02,601 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:02,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:02,611 INFO L225 Difference]: With dead ends: 9338 [2022-02-10 22:27:02,611 INFO L226 Difference]: Without dead ends: 8818 [2022-02-10 22:27:02,612 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=442, Invalid=1538, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:27:02,612 INFO L934 BasicCegarLoop]: 261 mSDtfsCounter, 281 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 2943 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:02,612 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 2943 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:02,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8818 states. [2022-02-10 22:27:02,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8818 to 7690. [2022-02-10 22:27:02,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:02,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-02-10 22:27:02,702 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-02-10 22:27:02,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:02,702 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-02-10 22:27:02,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:02,702 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-02-10 22:27:02,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:02,710 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:02,710 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:02,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-02-10 22:27:02,710 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:02,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:02,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1039059210, now seen corresponding path program 64 times [2022-02-10 22:27:02,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:02,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727953797] [2022-02-10 22:27:02,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:02,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:02,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:02,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:02,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727953797] [2022-02-10 22:27:02,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727953797] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:02,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:02,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:02,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552916640] [2022-02-10 22:27:02,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:02,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:02,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:02,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:02,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:02,831 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:03,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:03,398 INFO L93 Difference]: Finished difference Result 9256 states and 24425 transitions. [2022-02-10 22:27:03,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:27:03,399 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:03,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:03,409 INFO L225 Difference]: With dead ends: 9256 [2022-02-10 22:27:03,409 INFO L226 Difference]: Without dead ends: 8734 [2022-02-10 22:27:03,409 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=466, Invalid=1340, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 22:27:03,409 INFO L934 BasicCegarLoop]: 262 mSDtfsCounter, 259 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:03,409 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 2725 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:03,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8734 states. [2022-02-10 22:27:03,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8734 to 7694. [2022-02-10 22:27:03,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:03,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-02-10 22:27:03,498 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-02-10 22:27:03,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:03,498 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-02-10 22:27:03,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:03,498 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-02-10 22:27:03,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:03,506 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:03,506 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:03,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-02-10 22:27:03,506 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:03,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:03,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1697992736, now seen corresponding path program 65 times [2022-02-10 22:27:03,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:03,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569369669] [2022-02-10 22:27:03,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:03,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:03,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:03,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:03,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569369669] [2022-02-10 22:27:03,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569369669] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:03,633 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:03,633 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:03,633 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575395185] [2022-02-10 22:27:03,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:03,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:03,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:03,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:03,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:03,634 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:04,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:04,094 INFO L93 Difference]: Finished difference Result 9156 states and 24171 transitions. [2022-02-10 22:27:04,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:04,094 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:04,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:04,104 INFO L225 Difference]: With dead ends: 9156 [2022-02-10 22:27:04,104 INFO L226 Difference]: Without dead ends: 8677 [2022-02-10 22:27:04,105 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=349, Invalid=1057, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:04,105 INFO L934 BasicCegarLoop]: 257 mSDtfsCounter, 220 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2304 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:04,105 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2304 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:04,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8677 states. [2022-02-10 22:27:04,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8677 to 7698. [2022-02-10 22:27:04,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6420683383136288) internal successors, (20336), 7697 states have internal predecessors, (20336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:04,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20336 transitions. [2022-02-10 22:27:04,196 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20336 transitions. Word has length 109 [2022-02-10 22:27:04,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:04,196 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20336 transitions. [2022-02-10 22:27:04,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:04,196 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20336 transitions. [2022-02-10 22:27:04,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:04,204 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:04,204 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:04,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2022-02-10 22:27:04,204 INFO L402 AbstractCegarLoop]: === Iteration 368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:04,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:04,204 INFO L85 PathProgramCache]: Analyzing trace with hash -969451442, now seen corresponding path program 66 times [2022-02-10 22:27:04,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:04,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677917403] [2022-02-10 22:27:04,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:04,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:04,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:04,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:04,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677917403] [2022-02-10 22:27:04,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677917403] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:04,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:04,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:04,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716429232] [2022-02-10 22:27:04,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:04,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:04,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:04,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:04,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:04,323 INFO L87 Difference]: Start difference. First operand 7698 states and 20336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:04,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:04,752 INFO L93 Difference]: Finished difference Result 9106 states and 24038 transitions. [2022-02-10 22:27:04,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:27:04,752 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:04,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:04,762 INFO L225 Difference]: With dead ends: 9106 [2022-02-10 22:27:04,762 INFO L226 Difference]: Without dead ends: 8614 [2022-02-10 22:27:04,763 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:27:04,763 INFO L934 BasicCegarLoop]: 256 mSDtfsCounter, 208 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:04,763 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 2720 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:04,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8614 states. [2022-02-10 22:27:04,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8614 to 7682. [2022-02-10 22:27:04,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.643405806535607) internal successors, (20304), 7681 states have internal predecessors, (20304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:04,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20304 transitions. [2022-02-10 22:27:04,853 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20304 transitions. Word has length 109 [2022-02-10 22:27:04,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:04,854 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20304 transitions. [2022-02-10 22:27:04,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:04,854 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20304 transitions. [2022-02-10 22:27:04,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:04,861 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:04,861 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:04,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2022-02-10 22:27:04,861 INFO L402 AbstractCegarLoop]: === Iteration 369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:04,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:04,862 INFO L85 PathProgramCache]: Analyzing trace with hash 2065231170, now seen corresponding path program 67 times [2022-02-10 22:27:04,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:04,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284796496] [2022-02-10 22:27:04,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:04,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:04,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:04,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:04,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:04,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284796496] [2022-02-10 22:27:04,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284796496] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:04,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:04,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:04,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751350079] [2022-02-10 22:27:04,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:04,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:04,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:04,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:04,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:04,989 INFO L87 Difference]: Start difference. First operand 7682 states and 20304 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:05,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:05,431 INFO L93 Difference]: Finished difference Result 9048 states and 23882 transitions. [2022-02-10 22:27:05,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:27:05,431 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:05,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:05,442 INFO L225 Difference]: With dead ends: 9048 [2022-02-10 22:27:05,442 INFO L226 Difference]: Without dead ends: 8569 [2022-02-10 22:27:05,442 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=301, Invalid=889, Unknown=0, NotChecked=0, Total=1190 [2022-02-10 22:27:05,442 INFO L934 BasicCegarLoop]: 250 mSDtfsCounter, 209 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2709 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:05,442 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2709 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:05,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8569 states. [2022-02-10 22:27:05,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8569 to 7698. [2022-02-10 22:27:05,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:05,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-02-10 22:27:05,531 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-02-10 22:27:05,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:05,531 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-02-10 22:27:05,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:05,531 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-02-10 22:27:05,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:05,538 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:05,538 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:05,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2022-02-10 22:27:05,538 INFO L402 AbstractCegarLoop]: === Iteration 370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:05,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:05,539 INFO L85 PathProgramCache]: Analyzing trace with hash -602213008, now seen corresponding path program 68 times [2022-02-10 22:27:05,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:05,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97486400] [2022-02-10 22:27:05,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:05,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:05,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:05,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:05,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97486400] [2022-02-10 22:27:05,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97486400] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:05,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:05,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:05,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988103827] [2022-02-10 22:27:05,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:05,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:05,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:05,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:05,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:05,661 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:06,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:06,137 INFO L93 Difference]: Finished difference Result 9018 states and 23804 transitions. [2022-02-10 22:27:06,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:06,137 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:06,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:06,147 INFO L225 Difference]: With dead ends: 9018 [2022-02-10 22:27:06,147 INFO L226 Difference]: Without dead ends: 8538 [2022-02-10 22:27:06,147 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:06,147 INFO L934 BasicCegarLoop]: 254 mSDtfsCounter, 196 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:06,147 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 2884 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:06,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8538 states. [2022-02-10 22:27:06,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8538 to 7694. [2022-02-10 22:27:06,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:06,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-02-10 22:27:06,234 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-02-10 22:27:06,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:06,234 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-02-10 22:27:06,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:06,234 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-02-10 22:27:06,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:06,242 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:06,242 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:06,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2022-02-10 22:27:06,242 INFO L402 AbstractCegarLoop]: === Iteration 371 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:06,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:06,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1723270348, now seen corresponding path program 69 times [2022-02-10 22:27:06,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:06,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351250593] [2022-02-10 22:27:06,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:06,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:06,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:06,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:06,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351250593] [2022-02-10 22:27:06,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351250593] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:06,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:06,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:06,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743690925] [2022-02-10 22:27:06,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:06,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:06,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:06,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:06,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:06,363 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:06,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:06,936 INFO L93 Difference]: Finished difference Result 9054 states and 23899 transitions. [2022-02-10 22:27:06,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:27:06,936 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:06,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:06,947 INFO L225 Difference]: With dead ends: 9054 [2022-02-10 22:27:06,947 INFO L226 Difference]: Without dead ends: 8534 [2022-02-10 22:27:06,947 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=441, Invalid=1539, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:27:06,948 INFO L934 BasicCegarLoop]: 263 mSDtfsCounter, 279 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:06,948 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 2815 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:06,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8534 states. [2022-02-10 22:27:07,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8534 to 7690. [2022-02-10 22:27:07,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:07,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-02-10 22:27:07,081 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-02-10 22:27:07,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:07,081 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-02-10 22:27:07,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:07,082 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-02-10 22:27:07,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:07,094 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:07,094 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:07,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2022-02-10 22:27:07,094 INFO L402 AbstractCegarLoop]: === Iteration 372 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:07,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:07,095 INFO L85 PathProgramCache]: Analyzing trace with hash 2046561412, now seen corresponding path program 70 times [2022-02-10 22:27:07,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:07,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615826512] [2022-02-10 22:27:07,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:07,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:07,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:07,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:07,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615826512] [2022-02-10 22:27:07,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615826512] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:07,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:07,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:07,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45110655] [2022-02-10 22:27:07,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:07,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:07,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:07,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:07,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:07,239 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:07,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:07,891 INFO L93 Difference]: Finished difference Result 9090 states and 23994 transitions. [2022-02-10 22:27:07,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:27:07,891 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:07,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:07,901 INFO L225 Difference]: With dead ends: 9090 [2022-02-10 22:27:07,901 INFO L226 Difference]: Without dead ends: 8530 [2022-02-10 22:27:07,901 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:27:07,902 INFO L934 BasicCegarLoop]: 272 mSDtfsCounter, 317 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 3066 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:07,902 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 3066 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:27:07,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8530 states. [2022-02-10 22:27:07,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8530 to 7686. [2022-02-10 22:27:07,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6429407937540663) internal successors, (20311), 7685 states have internal predecessors, (20311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:07,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20311 transitions. [2022-02-10 22:27:07,991 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20311 transitions. Word has length 109 [2022-02-10 22:27:07,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:07,991 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20311 transitions. [2022-02-10 22:27:07,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:07,992 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20311 transitions. [2022-02-10 22:27:07,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:07,999 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:07,999 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:07,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2022-02-10 22:27:07,999 INFO L402 AbstractCegarLoop]: === Iteration 373 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:07,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:07,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1596112618, now seen corresponding path program 71 times [2022-02-10 22:27:07,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:07,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580988634] [2022-02-10 22:27:08,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:08,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:08,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:08,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:08,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580988634] [2022-02-10 22:27:08,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580988634] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:08,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:08,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:08,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144637243] [2022-02-10 22:27:08,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:08,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:08,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:08,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:08,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:08,116 INFO L87 Difference]: Start difference. First operand 7686 states and 20311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:08,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:08,820 INFO L93 Difference]: Finished difference Result 9258 states and 24416 transitions. [2022-02-10 22:27:08,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-10 22:27:08,821 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:08,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:08,832 INFO L225 Difference]: With dead ends: 9258 [2022-02-10 22:27:08,832 INFO L226 Difference]: Without dead ends: 8654 [2022-02-10 22:27:08,832 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-02-10 22:27:08,833 INFO L934 BasicCegarLoop]: 272 mSDtfsCounter, 413 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 3042 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:08,833 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 3042 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:08,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8654 states. [2022-02-10 22:27:08,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8654 to 7678. [2022-02-10 22:27:08,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7678 states, 7677 states have (on average 2.6433502670313924) internal successors, (20293), 7677 states have internal predecessors, (20293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:08,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7678 states to 7678 states and 20293 transitions. [2022-02-10 22:27:08,924 INFO L78 Accepts]: Start accepts. Automaton has 7678 states and 20293 transitions. Word has length 109 [2022-02-10 22:27:08,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:08,924 INFO L470 AbstractCegarLoop]: Abstraction has 7678 states and 20293 transitions. [2022-02-10 22:27:08,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:08,924 INFO L276 IsEmpty]: Start isEmpty. Operand 7678 states and 20293 transitions. [2022-02-10 22:27:08,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:08,932 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:08,932 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:08,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2022-02-10 22:27:08,932 INFO L402 AbstractCegarLoop]: === Iteration 374 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:08,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:08,933 INFO L85 PathProgramCache]: Analyzing trace with hash 33730372, now seen corresponding path program 72 times [2022-02-10 22:27:08,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:08,933 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859260038] [2022-02-10 22:27:08,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:08,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:09,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:09,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:09,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859260038] [2022-02-10 22:27:09,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859260038] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:09,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:09,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:09,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96173032] [2022-02-10 22:27:09,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:09,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:09,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:09,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:09,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:09,050 INFO L87 Difference]: Start difference. First operand 7678 states and 20293 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:09,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:09,485 INFO L93 Difference]: Finished difference Result 9208 states and 24322 transitions. [2022-02-10 22:27:09,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:27:09,485 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:09,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:09,496 INFO L225 Difference]: With dead ends: 9208 [2022-02-10 22:27:09,496 INFO L226 Difference]: Without dead ends: 8729 [2022-02-10 22:27:09,496 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:27:09,496 INFO L934 BasicCegarLoop]: 253 mSDtfsCounter, 221 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:09,496 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2725 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:09,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8729 states. [2022-02-10 22:27:09,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8729 to 7698. [2022-02-10 22:27:09,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:09,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-02-10 22:27:09,591 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-02-10 22:27:09,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:09,591 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-02-10 22:27:09,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:09,592 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-02-10 22:27:09,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:09,600 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:09,600 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:09,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2022-02-10 22:27:09,600 INFO L402 AbstractCegarLoop]: === Iteration 375 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:09,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:09,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1661253490, now seen corresponding path program 73 times [2022-02-10 22:27:09,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:09,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825223456] [2022-02-10 22:27:09,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:09,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:09,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:09,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:09,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825223456] [2022-02-10 22:27:09,718 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825223456] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:09,718 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:09,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:09,718 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232686655] [2022-02-10 22:27:09,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:09,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:09,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:09,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:09,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:09,718 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:10,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:10,172 INFO L93 Difference]: Finished difference Result 9174 states and 24233 transitions. [2022-02-10 22:27:10,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:10,172 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:10,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:10,184 INFO L225 Difference]: With dead ends: 9174 [2022-02-10 22:27:10,184 INFO L226 Difference]: Without dead ends: 8694 [2022-02-10 22:27:10,185 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:10,185 INFO L934 BasicCegarLoop]: 255 mSDtfsCounter, 212 mSDsluCounter, 2681 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:10,185 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 2882 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:10,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8694 states. [2022-02-10 22:27:10,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8694 to 7694. [2022-02-10 22:27:10,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:10,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-02-10 22:27:10,278 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-02-10 22:27:10,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:10,278 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-02-10 22:27:10,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:10,279 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-02-10 22:27:10,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:10,286 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:10,286 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:10,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2022-02-10 22:27:10,286 INFO L402 AbstractCegarLoop]: === Iteration 376 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:10,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:10,287 INFO L85 PathProgramCache]: Analyzing trace with hash 540196150, now seen corresponding path program 74 times [2022-02-10 22:27:10,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:10,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186594636] [2022-02-10 22:27:10,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:10,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:10,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:10,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186594636] [2022-02-10 22:27:10,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186594636] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:10,404 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:10,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:10,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799117135] [2022-02-10 22:27:10,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:10,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:10,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:10,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:10,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:10,404 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:10,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:10,956 INFO L93 Difference]: Finished difference Result 9210 states and 24328 transitions. [2022-02-10 22:27:10,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:27:10,956 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:10,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:10,967 INFO L225 Difference]: With dead ends: 9210 [2022-02-10 22:27:10,967 INFO L226 Difference]: Without dead ends: 8690 [2022-02-10 22:27:10,967 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1606, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:27:10,967 INFO L934 BasicCegarLoop]: 264 mSDtfsCounter, 288 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:10,967 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 2813 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:10,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2022-02-10 22:27:11,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 7690. [2022-02-10 22:27:11,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:11,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-02-10 22:27:11,058 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-02-10 22:27:11,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:11,058 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-02-10 22:27:11,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:11,058 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-02-10 22:27:11,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:11,066 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:11,066 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:11,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2022-02-10 22:27:11,066 INFO L402 AbstractCegarLoop]: === Iteration 377 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:11,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:11,066 INFO L85 PathProgramCache]: Analyzing trace with hash 15060614, now seen corresponding path program 75 times [2022-02-10 22:27:11,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:11,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308114672] [2022-02-10 22:27:11,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:11,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:11,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:11,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:11,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308114672] [2022-02-10 22:27:11,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308114672] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:11,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:11,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:11,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821325794] [2022-02-10 22:27:11,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:11,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:11,184 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:11,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:11,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:11,185 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:11,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:11,811 INFO L93 Difference]: Finished difference Result 9354 states and 24696 transitions. [2022-02-10 22:27:11,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:27:11,811 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:11,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:11,821 INFO L225 Difference]: With dead ends: 9354 [2022-02-10 22:27:11,821 INFO L226 Difference]: Without dead ends: 8794 [2022-02-10 22:27:11,822 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=619, Invalid=2033, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:27:11,822 INFO L934 BasicCegarLoop]: 268 mSDtfsCounter, 348 mSDsluCounter, 2809 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 3021 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:11,822 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 3021 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:11,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8794 states. [2022-02-10 22:27:11,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8794 to 7686. [2022-02-10 22:27:11,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6429407937540663) internal successors, (20311), 7685 states have internal predecessors, (20311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:11,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20311 transitions. [2022-02-10 22:27:11,910 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20311 transitions. Word has length 109 [2022-02-10 22:27:11,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:11,910 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20311 transitions. [2022-02-10 22:27:11,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:11,910 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20311 transitions. [2022-02-10 22:27:11,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:11,918 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:11,918 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:11,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2022-02-10 22:27:11,919 INFO L402 AbstractCegarLoop]: === Iteration 378 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:11,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:11,919 INFO L85 PathProgramCache]: Analyzing trace with hash -175252790, now seen corresponding path program 76 times [2022-02-10 22:27:11,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:11,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842334825] [2022-02-10 22:27:11,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:11,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:12,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:12,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:12,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842334825] [2022-02-10 22:27:12,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842334825] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:12,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:12,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:12,037 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332402762] [2022-02-10 22:27:12,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:12,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:12,037 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:12,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:12,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:12,037 INFO L87 Difference]: Start difference. First operand 7686 states and 20311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:12,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:12,502 INFO L93 Difference]: Finished difference Result 9280 states and 24516 transitions. [2022-02-10 22:27:12,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:27:12,502 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:12,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:12,513 INFO L225 Difference]: With dead ends: 9280 [2022-02-10 22:27:12,513 INFO L226 Difference]: Without dead ends: 8801 [2022-02-10 22:27:12,513 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:12,514 INFO L934 BasicCegarLoop]: 257 mSDtfsCounter, 216 mSDsluCounter, 2701 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:12,514 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2894 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:12,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8801 states. [2022-02-10 22:27:12,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8801 to 7698. [2022-02-10 22:27:12,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:12,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-02-10 22:27:12,622 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-02-10 22:27:12,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:12,622 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-02-10 22:27:12,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:12,623 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-02-10 22:27:12,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:12,632 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:12,632 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:12,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2022-02-10 22:27:12,632 INFO L402 AbstractCegarLoop]: === Iteration 379 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:12,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:12,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1452270328, now seen corresponding path program 77 times [2022-02-10 22:27:12,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:12,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562804746] [2022-02-10 22:27:12,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:12,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:12,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:12,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:12,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562804746] [2022-02-10 22:27:12,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562804746] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:12,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:12,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:12,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871490337] [2022-02-10 22:27:12,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:12,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:12,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:12,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:12,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:12,758 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:13,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:13,258 INFO L93 Difference]: Finished difference Result 9238 states and 24405 transitions. [2022-02-10 22:27:13,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:13,259 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:13,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:13,271 INFO L225 Difference]: With dead ends: 9238 [2022-02-10 22:27:13,271 INFO L226 Difference]: Without dead ends: 8758 [2022-02-10 22:27:13,271 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:27:13,271 INFO L934 BasicCegarLoop]: 258 mSDtfsCounter, 214 mSDsluCounter, 2690 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:13,271 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2894 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:13,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8758 states. [2022-02-10 22:27:13,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8758 to 7694. [2022-02-10 22:27:13,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:13,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-02-10 22:27:13,403 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-02-10 22:27:13,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:13,403 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-02-10 22:27:13,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:13,403 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-02-10 22:27:13,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:13,411 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:13,411 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:13,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2022-02-10 22:27:13,412 INFO L402 AbstractCegarLoop]: === Iteration 380 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:13,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:13,412 INFO L85 PathProgramCache]: Analyzing trace with hash 331212988, now seen corresponding path program 78 times [2022-02-10 22:27:13,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:13,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17815809] [2022-02-10 22:27:13,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:13,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:13,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:13,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:13,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17815809] [2022-02-10 22:27:13,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17815809] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:13,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:13,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:13,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689801236] [2022-02-10 22:27:13,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:13,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:13,532 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:13,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:13,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:13,532 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:14,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:14,099 INFO L93 Difference]: Finished difference Result 9366 states and 24737 transitions. [2022-02-10 22:27:14,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:27:14,099 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:14,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:14,111 INFO L225 Difference]: With dead ends: 9366 [2022-02-10 22:27:14,112 INFO L226 Difference]: Without dead ends: 8846 [2022-02-10 22:27:14,112 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1528, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:27:14,112 INFO L934 BasicCegarLoop]: 263 mSDtfsCounter, 290 mSDsluCounter, 2756 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:14,112 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2964 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:27:14,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2022-02-10 22:27:14,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7690. [2022-02-10 22:27:14,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:14,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-02-10 22:27:14,217 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-02-10 22:27:14,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:14,217 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-02-10 22:27:14,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:14,217 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-02-10 22:27:14,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:14,225 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:14,226 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:14,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2022-02-10 22:27:14,226 INFO L402 AbstractCegarLoop]: === Iteration 381 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:14,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:14,226 INFO L85 PathProgramCache]: Analyzing trace with hash 403842712, now seen corresponding path program 79 times [2022-02-10 22:27:14,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:14,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416274756] [2022-02-10 22:27:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:14,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:14,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:14,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:14,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416274756] [2022-02-10 22:27:14,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416274756] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:14,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:14,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:14,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930791479] [2022-02-10 22:27:14,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:14,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:14,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:14,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:14,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:14,349 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:14,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:14,952 INFO L93 Difference]: Finished difference Result 9368 states and 24729 transitions. [2022-02-10 22:27:14,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:27:14,953 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:14,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:14,965 INFO L225 Difference]: With dead ends: 9368 [2022-02-10 22:27:14,965 INFO L226 Difference]: Without dead ends: 8846 [2022-02-10 22:27:14,965 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=476, Invalid=1416, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:27:14,966 INFO L934 BasicCegarLoop]: 267 mSDtfsCounter, 280 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:14,966 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 2615 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:14,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2022-02-10 22:27:15,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7694. [2022-02-10 22:27:15,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:15,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-02-10 22:27:15,079 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-02-10 22:27:15,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:15,079 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-02-10 22:27:15,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:15,079 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-02-10 22:27:15,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:15,088 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:15,088 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:15,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2022-02-10 22:27:15,089 INFO L402 AbstractCegarLoop]: === Iteration 382 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:15,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:15,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1154072638, now seen corresponding path program 80 times [2022-02-10 22:27:15,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:15,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265410879] [2022-02-10 22:27:15,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:15,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:15,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:15,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265410879] [2022-02-10 22:27:15,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265410879] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:15,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:15,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:15,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129507584] [2022-02-10 22:27:15,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:15,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:15,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:15,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:15,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:15,212 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:15,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:15,698 INFO L93 Difference]: Finished difference Result 9220 states and 24343 transitions. [2022-02-10 22:27:15,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:15,698 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:15,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:15,711 INFO L225 Difference]: With dead ends: 9220 [2022-02-10 22:27:15,711 INFO L226 Difference]: Without dead ends: 8741 [2022-02-10 22:27:15,711 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=344, Invalid=1062, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:15,711 INFO L934 BasicCegarLoop]: 260 mSDtfsCounter, 214 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2468 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:15,711 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2468 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:15,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8741 states. [2022-02-10 22:27:15,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8741 to 7698. [2022-02-10 22:27:15,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:15,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-02-10 22:27:15,822 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-02-10 22:27:15,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:15,822 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-02-10 22:27:15,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:15,822 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-02-10 22:27:15,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:15,832 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:15,832 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:15,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2022-02-10 22:27:15,832 INFO L402 AbstractCegarLoop]: === Iteration 383 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:15,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:15,833 INFO L85 PathProgramCache]: Analyzing trace with hash 473450480, now seen corresponding path program 81 times [2022-02-10 22:27:15,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:15,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308454119] [2022-02-10 22:27:15,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:15,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:15,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:15,953 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:15,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308454119] [2022-02-10 22:27:15,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308454119] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:15,953 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:15,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:15,953 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275606101] [2022-02-10 22:27:15,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:15,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:15,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:15,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:15,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:15,954 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:16,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:16,429 INFO L93 Difference]: Finished difference Result 9138 states and 24122 transitions. [2022-02-10 22:27:16,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:27:16,429 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:16,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:16,439 INFO L225 Difference]: With dead ends: 9138 [2022-02-10 22:27:16,439 INFO L226 Difference]: Without dead ends: 8646 [2022-02-10 22:27:16,440 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:27:16,440 INFO L934 BasicCegarLoop]: 255 mSDtfsCounter, 203 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 2874 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:16,440 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 2874 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:16,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8646 states. [2022-02-10 22:27:16,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8646 to 7682. [2022-02-10 22:27:16,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.642885041010285) internal successors, (20300), 7681 states have internal predecessors, (20300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:16,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20300 transitions. [2022-02-10 22:27:16,529 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20300 transitions. Word has length 109 [2022-02-10 22:27:16,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:16,529 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20300 transitions. [2022-02-10 22:27:16,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:16,529 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20300 transitions. [2022-02-10 22:27:16,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:16,538 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:16,538 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:16,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2022-02-10 22:27:16,538 INFO L402 AbstractCegarLoop]: === Iteration 384 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:16,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:16,539 INFO L85 PathProgramCache]: Analyzing trace with hash -223288894, now seen corresponding path program 82 times [2022-02-10 22:27:16,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:16,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581247459] [2022-02-10 22:27:16,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:16,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:16,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:16,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:16,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581247459] [2022-02-10 22:27:16,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581247459] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:16,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:16,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:16,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838113532] [2022-02-10 22:27:16,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:16,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:16,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:16,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:16,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:16,675 INFO L87 Difference]: Start difference. First operand 7682 states and 20300 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:17,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:17,304 INFO L93 Difference]: Finished difference Result 9176 states and 24230 transitions. [2022-02-10 22:27:17,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:27:17,306 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:17,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:17,321 INFO L225 Difference]: With dead ends: 9176 [2022-02-10 22:27:17,321 INFO L226 Difference]: Without dead ends: 8697 [2022-02-10 22:27:17,323 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:27:17,323 INFO L934 BasicCegarLoop]: 255 mSDtfsCounter, 224 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:17,324 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2294 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:27:17,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-02-10 22:27:17,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 7698. [2022-02-10 22:27:17,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:17,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-02-10 22:27:17,490 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-02-10 22:27:17,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:17,490 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-02-10 22:27:17,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:17,491 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-02-10 22:27:17,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:17,503 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:17,517 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:17,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2022-02-10 22:27:17,519 INFO L402 AbstractCegarLoop]: === Iteration 385 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:17,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:17,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1404234224, now seen corresponding path program 83 times [2022-02-10 22:27:17,519 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:17,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495186805] [2022-02-10 22:27:17,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:17,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:17,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:17,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:17,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495186805] [2022-02-10 22:27:17,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495186805] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:17,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:17,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:17,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129005374] [2022-02-10 22:27:17,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:17,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:17,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:17,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:17,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:17,752 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:18,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:18,326 INFO L93 Difference]: Finished difference Result 9134 states and 24119 transitions. [2022-02-10 22:27:18,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:18,326 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:18,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:18,336 INFO L225 Difference]: With dead ends: 9134 [2022-02-10 22:27:18,336 INFO L226 Difference]: Without dead ends: 8654 [2022-02-10 22:27:18,337 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=327, Invalid=1079, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:18,337 INFO L934 BasicCegarLoop]: 256 mSDtfsCounter, 215 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:18,337 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 2718 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:27:18,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8654 states. [2022-02-10 22:27:18,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8654 to 7694. [2022-02-10 22:27:18,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:18,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-02-10 22:27:18,426 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-02-10 22:27:18,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:18,426 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-02-10 22:27:18,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:18,426 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-02-10 22:27:18,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:18,434 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:18,434 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:18,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2022-02-10 22:27:18,434 INFO L402 AbstractCegarLoop]: === Iteration 386 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:18,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:18,434 INFO L85 PathProgramCache]: Analyzing trace with hash 283176884, now seen corresponding path program 84 times [2022-02-10 22:27:18,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:18,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39019338] [2022-02-10 22:27:18,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:18,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:18,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:18,555 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:18,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39019338] [2022-02-10 22:27:18,555 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39019338] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:18,555 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:18,555 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:18,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751780620] [2022-02-10 22:27:18,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:18,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:18,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:18,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:18,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:18,556 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:19,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:19,128 INFO L93 Difference]: Finished difference Result 9242 states and 24396 transitions. [2022-02-10 22:27:19,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:27:19,129 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:19,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:19,140 INFO L225 Difference]: With dead ends: 9242 [2022-02-10 22:27:19,140 INFO L226 Difference]: Without dead ends: 8722 [2022-02-10 22:27:19,140 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 22:27:19,141 INFO L934 BasicCegarLoop]: 261 mSDtfsCounter, 289 mSDsluCounter, 2569 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:19,141 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 2777 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:19,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8722 states. [2022-02-10 22:27:19,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8722 to 7690. [2022-02-10 22:27:19,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:19,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-02-10 22:27:19,232 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-02-10 22:27:19,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:19,232 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-02-10 22:27:19,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:19,233 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-02-10 22:27:19,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:19,240 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:19,240 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:19,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2022-02-10 22:27:19,240 INFO L402 AbstractCegarLoop]: === Iteration 387 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:19,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:19,241 INFO L85 PathProgramCache]: Analyzing trace with hash 355806608, now seen corresponding path program 85 times [2022-02-10 22:27:19,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:19,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979061367] [2022-02-10 22:27:19,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:19,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:19,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:19,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:19,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979061367] [2022-02-10 22:27:19,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979061367] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:19,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:19,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:19,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977852428] [2022-02-10 22:27:19,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:19,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:19,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:19,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:19,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:19,363 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:19,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:19,964 INFO L93 Difference]: Finished difference Result 9340 states and 24652 transitions. [2022-02-10 22:27:19,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:27:19,964 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:19,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:19,975 INFO L225 Difference]: With dead ends: 9340 [2022-02-10 22:27:19,975 INFO L226 Difference]: Without dead ends: 8818 [2022-02-10 22:27:19,975 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=487, Invalid=1493, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:27:19,975 INFO L934 BasicCegarLoop]: 262 mSDtfsCounter, 302 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 2363 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:19,975 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 2363 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:19,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8818 states. [2022-02-10 22:27:20,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8818 to 7694. [2022-02-10 22:27:20,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:20,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-02-10 22:27:20,068 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-02-10 22:27:20,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:20,069 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-02-10 22:27:20,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:20,069 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-02-10 22:27:20,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:20,076 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:20,076 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:20,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2022-02-10 22:27:20,076 INFO L402 AbstractCegarLoop]: === Iteration 388 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:20,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:20,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1202108742, now seen corresponding path program 86 times [2022-02-10 22:27:20,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:20,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710512921] [2022-02-10 22:27:20,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:20,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:20,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:20,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:20,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710512921] [2022-02-10 22:27:20,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710512921] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:20,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:20,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:20,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47986103] [2022-02-10 22:27:20,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:20,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:20,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:20,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:20,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:20,198 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:20,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:20,682 INFO L93 Difference]: Finished difference Result 9176 states and 24222 transitions. [2022-02-10 22:27:20,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:20,682 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:20,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:20,692 INFO L225 Difference]: With dead ends: 9176 [2022-02-10 22:27:20,693 INFO L226 Difference]: Without dead ends: 8697 [2022-02-10 22:27:20,693 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:20,693 INFO L934 BasicCegarLoop]: 254 mSDtfsCounter, 229 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2442 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:20,693 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2442 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:20,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-02-10 22:27:20,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 7698. [2022-02-10 22:27:20,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:20,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-02-10 22:27:20,788 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-02-10 22:27:20,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:20,788 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-02-10 22:27:20,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:20,788 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-02-10 22:27:20,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:20,798 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:20,798 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:20,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2022-02-10 22:27:20,798 INFO L402 AbstractCegarLoop]: === Iteration 389 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:20,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:20,798 INFO L85 PathProgramCache]: Analyzing trace with hash 425414376, now seen corresponding path program 87 times [2022-02-10 22:27:20,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:20,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542091466] [2022-02-10 22:27:20,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:20,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:20,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:20,963 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:20,963 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542091466] [2022-02-10 22:27:20,963 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542091466] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:20,963 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:20,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:20,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94493588] [2022-02-10 22:27:20,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:20,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:20,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:20,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:20,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:20,964 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:21,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:21,397 INFO L93 Difference]: Finished difference Result 9110 states and 24045 transitions. [2022-02-10 22:27:21,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:27:21,397 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:21,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:21,408 INFO L225 Difference]: With dead ends: 9110 [2022-02-10 22:27:21,408 INFO L226 Difference]: Without dead ends: 8622 [2022-02-10 22:27:21,408 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:27:21,408 INFO L934 BasicCegarLoop]: 248 mSDtfsCounter, 216 mSDsluCounter, 2640 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:21,408 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2834 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:21,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8622 states. [2022-02-10 22:27:21,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8622 to 7686. [2022-02-10 22:27:21,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.64242029928432) internal successors, (20307), 7685 states have internal predecessors, (20307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:21,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20307 transitions. [2022-02-10 22:27:21,497 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20307 transitions. Word has length 109 [2022-02-10 22:27:21,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:21,497 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20307 transitions. [2022-02-10 22:27:21,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:21,497 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20307 transitions. [2022-02-10 22:27:21,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:21,504 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:21,504 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:21,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2022-02-10 22:27:21,505 INFO L402 AbstractCegarLoop]: === Iteration 390 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:21,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:21,505 INFO L85 PathProgramCache]: Analyzing trace with hash -856929724, now seen corresponding path program 88 times [2022-02-10 22:27:21,505 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:21,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953029971] [2022-02-10 22:27:21,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:21,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:21,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:21,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:21,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953029971] [2022-02-10 22:27:21,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953029971] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:21,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:21,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:21,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107189300] [2022-02-10 22:27:21,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:21,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:21,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:21,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:21,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:21,624 INFO L87 Difference]: Start difference. First operand 7686 states and 20307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:22,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:22,356 INFO L93 Difference]: Finished difference Result 9333 states and 24614 transitions. [2022-02-10 22:27:22,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-10 22:27:22,357 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:22,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:22,371 INFO L225 Difference]: With dead ends: 9333 [2022-02-10 22:27:22,372 INFO L226 Difference]: Without dead ends: 8768 [2022-02-10 22:27:22,372 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=651, Invalid=1899, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 22:27:22,372 INFO L934 BasicCegarLoop]: 267 mSDtfsCounter, 355 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:22,372 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 2777 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:27:22,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8768 states. [2022-02-10 22:27:22,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8768 to 7690. [2022-02-10 22:27:22,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.641956041097672) internal successors, (20314), 7689 states have internal predecessors, (20314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:22,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20314 transitions. [2022-02-10 22:27:22,470 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20314 transitions. Word has length 109 [2022-02-10 22:27:22,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:22,470 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20314 transitions. [2022-02-10 22:27:22,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:22,471 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20314 transitions. [2022-02-10 22:27:22,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:22,479 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:22,479 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:22,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2022-02-10 22:27:22,479 INFO L402 AbstractCegarLoop]: === Iteration 391 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:22,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:22,479 INFO L85 PathProgramCache]: Analyzing trace with hash 7501338, now seen corresponding path program 89 times [2022-02-10 22:27:22,479 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:22,479 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297012585] [2022-02-10 22:27:22,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:22,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:22,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:22,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:22,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297012585] [2022-02-10 22:27:22,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297012585] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:22,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:22,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:22,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605553379] [2022-02-10 22:27:22,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:22,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:22,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:22,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:22,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:22,613 INFO L87 Difference]: Start difference. First operand 7690 states and 20314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:23,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:23,217 INFO L93 Difference]: Finished difference Result 9220 states and 24318 transitions. [2022-02-10 22:27:23,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:27:23,217 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:23,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:23,228 INFO L225 Difference]: With dead ends: 9220 [2022-02-10 22:27:23,228 INFO L226 Difference]: Without dead ends: 8698 [2022-02-10 22:27:23,228 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=499, Invalid=1571, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:27:23,228 INFO L934 BasicCegarLoop]: 262 mSDtfsCounter, 297 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:23,228 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 2511 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:23,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8698 states. [2022-02-10 22:27:23,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8698 to 7694. [2022-02-10 22:27:23,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6414922656960873) internal successors, (20321), 7693 states have internal predecessors, (20321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:23,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20321 transitions. [2022-02-10 22:27:23,330 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20321 transitions. Word has length 109 [2022-02-10 22:27:23,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:23,330 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20321 transitions. [2022-02-10 22:27:23,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:23,330 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20321 transitions. [2022-02-10 22:27:23,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:23,341 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:23,341 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:23,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2022-02-10 22:27:23,341 INFO L402 AbstractCegarLoop]: === Iteration 392 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:23,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:23,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1550414012, now seen corresponding path program 90 times [2022-02-10 22:27:23,341 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:23,341 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471609508] [2022-02-10 22:27:23,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:23,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:23,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:23,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:23,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471609508] [2022-02-10 22:27:23,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471609508] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:23,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:23,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:23,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162577446] [2022-02-10 22:27:23,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:23,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:23,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:23,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:23,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:23,493 INFO L87 Difference]: Start difference. First operand 7694 states and 20321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:23,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:23,977 INFO L93 Difference]: Finished difference Result 9080 states and 23954 transitions. [2022-02-10 22:27:23,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:23,977 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:23,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:23,987 INFO L225 Difference]: With dead ends: 9080 [2022-02-10 22:27:23,987 INFO L226 Difference]: Without dead ends: 8601 [2022-02-10 22:27:23,987 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:23,987 INFO L934 BasicCegarLoop]: 250 mSDtfsCounter, 235 mSDsluCounter, 2442 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:23,988 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2633 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:23,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8601 states. [2022-02-10 22:27:24,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8601 to 7698. [2022-02-10 22:27:24,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6410289723268807) internal successors, (20328), 7697 states have internal predecessors, (20328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:24,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20328 transitions. [2022-02-10 22:27:24,075 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20328 transitions. Word has length 109 [2022-02-10 22:27:24,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:24,075 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20328 transitions. [2022-02-10 22:27:24,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:24,075 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20328 transitions. [2022-02-10 22:27:24,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:24,083 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:24,083 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:24,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2022-02-10 22:27:24,083 INFO L402 AbstractCegarLoop]: === Iteration 393 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:24,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:24,083 INFO L85 PathProgramCache]: Analyzing trace with hash 77109106, now seen corresponding path program 91 times [2022-02-10 22:27:24,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:24,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000378640] [2022-02-10 22:27:24,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:24,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:24,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:24,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:24,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000378640] [2022-02-10 22:27:24,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000378640] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:24,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:24,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:24,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634282721] [2022-02-10 22:27:24,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:24,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:24,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:24,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:24,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:24,210 INFO L87 Difference]: Start difference. First operand 7698 states and 20328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:24,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:24,608 INFO L93 Difference]: Finished difference Result 8970 states and 23656 transitions. [2022-02-10 22:27:24,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:27:24,608 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:24,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:24,622 INFO L225 Difference]: With dead ends: 8970 [2022-02-10 22:27:24,622 INFO L226 Difference]: Without dead ends: 8470 [2022-02-10 22:27:24,622 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=900, Unknown=0, NotChecked=0, Total=1190 [2022-02-10 22:27:24,622 INFO L934 BasicCegarLoop]: 244 mSDtfsCounter, 213 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:24,622 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2239 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:24,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-02-10 22:27:24,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7674. [2022-02-10 22:27:24,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7674 states, 7673 states have (on average 2.643294669620748) internal successors, (20282), 7673 states have internal predecessors, (20282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:24,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7674 states to 7674 states and 20282 transitions. [2022-02-10 22:27:24,733 INFO L78 Accepts]: Start accepts. Automaton has 7674 states and 20282 transitions. Word has length 109 [2022-02-10 22:27:24,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:24,733 INFO L470 AbstractCegarLoop]: Abstraction has 7674 states and 20282 transitions. [2022-02-10 22:27:24,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:24,733 INFO L276 IsEmpty]: Start isEmpty. Operand 7674 states and 20282 transitions. [2022-02-10 22:27:24,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:24,740 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:24,741 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:24,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2022-02-10 22:27:24,741 INFO L402 AbstractCegarLoop]: === Iteration 394 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:24,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:24,741 INFO L85 PathProgramCache]: Analyzing trace with hash 882893914, now seen corresponding path program 92 times [2022-02-10 22:27:24,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:24,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891490057] [2022-02-10 22:27:24,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:24,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:24,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:24,885 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:24,885 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891490057] [2022-02-10 22:27:24,886 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891490057] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:24,886 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:24,886 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:24,886 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804341637] [2022-02-10 22:27:24,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:24,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:24,886 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:24,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:24,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:24,886 INFO L87 Difference]: Start difference. First operand 7674 states and 20282 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:25,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:25,310 INFO L93 Difference]: Finished difference Result 9008 states and 23772 transitions. [2022-02-10 22:27:25,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:27:25,310 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:25,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:25,320 INFO L225 Difference]: With dead ends: 9008 [2022-02-10 22:27:25,320 INFO L226 Difference]: Without dead ends: 8529 [2022-02-10 22:27:25,320 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:27:25,320 INFO L934 BasicCegarLoop]: 250 mSDtfsCounter, 207 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:25,321 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 2274 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:25,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8529 states. [2022-02-10 22:27:25,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8529 to 7698. [2022-02-10 22:27:25,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:25,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-02-10 22:27:25,419 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-02-10 22:27:25,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:25,419 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-02-10 22:27:25,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:25,419 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-02-10 22:27:25,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:25,428 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:25,428 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:25,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2022-02-10 22:27:25,428 INFO L402 AbstractCegarLoop]: === Iteration 395 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:25,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:25,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1784550264, now seen corresponding path program 93 times [2022-02-10 22:27:25,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:25,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492275139] [2022-02-10 22:27:25,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:25,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:25,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:25,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:25,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492275139] [2022-02-10 22:27:25,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492275139] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:25,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:25,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:25,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199322569] [2022-02-10 22:27:25,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:25,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:25,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:25,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:25,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:25,562 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:26,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:26,043 INFO L93 Difference]: Finished difference Result 8974 states and 23683 transitions. [2022-02-10 22:27:26,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:26,043 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:26,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:26,053 INFO L225 Difference]: With dead ends: 8974 [2022-02-10 22:27:26,054 INFO L226 Difference]: Without dead ends: 8494 [2022-02-10 22:27:26,054 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:26,054 INFO L934 BasicCegarLoop]: 252 mSDtfsCounter, 200 mSDsluCounter, 2651 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:26,054 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2849 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:27:26,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8494 states. [2022-02-10 22:27:26,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8494 to 7694. [2022-02-10 22:27:26,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:26,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-02-10 22:27:26,161 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-02-10 22:27:26,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:26,161 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-02-10 22:27:26,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:26,161 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-02-10 22:27:26,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:26,168 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:26,169 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:26,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2022-02-10 22:27:26,169 INFO L402 AbstractCegarLoop]: === Iteration 396 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:26,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:26,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1389359692, now seen corresponding path program 94 times [2022-02-10 22:27:26,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:26,169 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762993787] [2022-02-10 22:27:26,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:26,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:26,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:26,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:26,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762993787] [2022-02-10 22:27:26,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762993787] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:26,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:26,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:26,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96724653] [2022-02-10 22:27:26,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:26,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:26,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:26,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:26,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:26,293 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:26,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:26,872 INFO L93 Difference]: Finished difference Result 9010 states and 23778 transitions. [2022-02-10 22:27:26,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:27:26,873 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:26,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:26,883 INFO L225 Difference]: With dead ends: 9010 [2022-02-10 22:27:26,883 INFO L226 Difference]: Without dead ends: 8490 [2022-02-10 22:27:26,883 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=475, Invalid=1595, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:27:26,883 INFO L934 BasicCegarLoop]: 261 mSDtfsCounter, 275 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:26,883 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 2616 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:26,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8490 states. [2022-02-10 22:27:26,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8490 to 7690. [2022-02-10 22:27:26,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:26,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-02-10 22:27:26,982 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-02-10 22:27:26,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:26,982 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-02-10 22:27:26,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:26,982 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-02-10 22:27:26,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:26,990 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:26,990 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:26,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2022-02-10 22:27:26,990 INFO L402 AbstractCegarLoop]: === Iteration 397 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:26,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:26,991 INFO L85 PathProgramCache]: Analyzing trace with hash 864224156, now seen corresponding path program 95 times [2022-02-10 22:27:26,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:26,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569502727] [2022-02-10 22:27:26,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:26,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:27,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:27,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:27,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569502727] [2022-02-10 22:27:27,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569502727] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:27,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:27,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:27,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816976464] [2022-02-10 22:27:27,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:27,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:27,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:27,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:27,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:27,111 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:27,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:27,724 INFO L93 Difference]: Finished difference Result 9126 states and 24069 transitions. [2022-02-10 22:27:27,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-10 22:27:27,725 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:27,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:27,734 INFO L225 Difference]: With dead ends: 9126 [2022-02-10 22:27:27,735 INFO L226 Difference]: Without dead ends: 8566 [2022-02-10 22:27:27,735 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=614, Invalid=1936, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 22:27:27,735 INFO L934 BasicCegarLoop]: 265 mSDtfsCounter, 345 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 2640 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:27,735 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 2640 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:27,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8566 states. [2022-02-10 22:27:27,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8566 to 7686. [2022-02-10 22:27:27,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6429407937540663) internal successors, (20311), 7685 states have internal predecessors, (20311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:27,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20311 transitions. [2022-02-10 22:27:27,822 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20311 transitions. Word has length 109 [2022-02-10 22:27:27,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:27,822 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20311 transitions. [2022-02-10 22:27:27,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:27,822 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20311 transitions. [2022-02-10 22:27:27,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:27,831 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:27,831 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:27,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2022-02-10 22:27:27,831 INFO L402 AbstractCegarLoop]: === Iteration 398 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:27,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:27,831 INFO L85 PathProgramCache]: Analyzing trace with hash 673910752, now seen corresponding path program 96 times [2022-02-10 22:27:27,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:27,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11957971] [2022-02-10 22:27:27,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:27,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:27,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:27,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:27,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11957971] [2022-02-10 22:27:27,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11957971] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:27,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:27,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:27,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893023229] [2022-02-10 22:27:27,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:27,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:27,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:27,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:27,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:27,951 INFO L87 Difference]: Start difference. First operand 7686 states and 20311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:28,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:28,401 INFO L93 Difference]: Finished difference Result 9076 states and 23955 transitions. [2022-02-10 22:27:28,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:27:28,401 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:28,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:28,411 INFO L225 Difference]: With dead ends: 9076 [2022-02-10 22:27:28,411 INFO L226 Difference]: Without dead ends: 8597 [2022-02-10 22:27:28,411 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:27:28,412 INFO L934 BasicCegarLoop]: 248 mSDtfsCounter, 235 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2469 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:28,412 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2469 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:28,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8597 states. [2022-02-10 22:27:28,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8597 to 7698. [2022-02-10 22:27:28,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:28,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-02-10 22:27:28,536 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-02-10 22:27:28,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:28,536 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-02-10 22:27:28,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:28,536 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-02-10 22:27:28,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:28,545 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:28,545 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:28,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2022-02-10 22:27:28,545 INFO L402 AbstractCegarLoop]: === Iteration 399 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:28,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:28,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1993533426, now seen corresponding path program 97 times [2022-02-10 22:27:28,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:28,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605827594] [2022-02-10 22:27:28,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:28,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:28,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:28,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:28,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605827594] [2022-02-10 22:27:28,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605827594] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:28,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:28,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:28,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638963519] [2022-02-10 22:27:28,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:28,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:28,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:28,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:28,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:28,659 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:29,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:29,106 INFO L93 Difference]: Finished difference Result 9034 states and 23844 transitions. [2022-02-10 22:27:29,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:29,106 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:29,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:29,117 INFO L225 Difference]: With dead ends: 9034 [2022-02-10 22:27:29,117 INFO L226 Difference]: Without dead ends: 8554 [2022-02-10 22:27:29,117 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:29,117 INFO L934 BasicCegarLoop]: 249 mSDtfsCounter, 233 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:29,117 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2509 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:29,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2022-02-10 22:27:29,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 7694. [2022-02-10 22:27:29,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:29,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-02-10 22:27:29,213 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-02-10 22:27:29,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:29,213 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-02-10 22:27:29,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:29,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-02-10 22:27:29,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:29,220 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:29,220 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:29,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2022-02-10 22:27:29,221 INFO L402 AbstractCegarLoop]: === Iteration 400 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:29,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:29,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1180376530, now seen corresponding path program 98 times [2022-02-10 22:27:29,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:29,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685232772] [2022-02-10 22:27:29,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:29,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:29,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:29,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:29,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685232772] [2022-02-10 22:27:29,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685232772] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:29,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:29,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:29,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035784924] [2022-02-10 22:27:29,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:29,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:29,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:29,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:29,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:29,334 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:29,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:29,855 INFO L93 Difference]: Finished difference Result 9162 states and 24176 transitions. [2022-02-10 22:27:29,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:27:29,855 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:29,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:29,865 INFO L225 Difference]: With dead ends: 9162 [2022-02-10 22:27:29,865 INFO L226 Difference]: Without dead ends: 8642 [2022-02-10 22:27:29,866 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=463, Invalid=1517, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:27:29,866 INFO L934 BasicCegarLoop]: 253 mSDtfsCounter, 301 mSDsluCounter, 2519 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:29,866 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 2719 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:29,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8642 states. [2022-02-10 22:27:29,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8642 to 7690. [2022-02-10 22:27:29,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:29,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-02-10 22:27:29,973 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-02-10 22:27:29,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:29,973 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-02-10 22:27:29,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:29,973 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-02-10 22:27:29,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:29,980 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:29,981 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:29,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2022-02-10 22:27:29,981 INFO L402 AbstractCegarLoop]: === Iteration 401 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:29,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:29,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1253006254, now seen corresponding path program 99 times [2022-02-10 22:27:29,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:29,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806656182] [2022-02-10 22:27:29,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:29,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:30,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:30,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:30,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806656182] [2022-02-10 22:27:30,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806656182] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:30,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:30,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:30,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254638100] [2022-02-10 22:27:30,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:30,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:30,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:30,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:30,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:30,099 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:30,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:30,655 INFO L93 Difference]: Finished difference Result 9164 states and 24168 transitions. [2022-02-10 22:27:30,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:27:30,656 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:30,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:30,666 INFO L225 Difference]: With dead ends: 9164 [2022-02-10 22:27:30,666 INFO L226 Difference]: Without dead ends: 8642 [2022-02-10 22:27:30,667 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:27:30,667 INFO L934 BasicCegarLoop]: 258 mSDtfsCounter, 282 mSDsluCounter, 2286 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:30,667 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 2482 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:30,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8642 states. [2022-02-10 22:27:30,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8642 to 7694. [2022-02-10 22:27:30,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:30,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-02-10 22:27:30,777 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-02-10 22:27:30,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:30,777 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-02-10 22:27:30,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:30,778 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-02-10 22:27:30,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:30,787 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:30,787 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:30,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2022-02-10 22:27:30,788 INFO L402 AbstractCegarLoop]: === Iteration 402 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:30,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:30,788 INFO L85 PathProgramCache]: Analyzing trace with hash -304909096, now seen corresponding path program 100 times [2022-02-10 22:27:30,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:30,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498281881] [2022-02-10 22:27:30,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:30,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:30,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:30,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:30,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498281881] [2022-02-10 22:27:30,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498281881] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:30,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:30,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:30,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946934829] [2022-02-10 22:27:30,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:30,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:30,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:30,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:30,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:30,929 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:31,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:31,388 INFO L93 Difference]: Finished difference Result 9016 states and 23782 transitions. [2022-02-10 22:27:31,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:31,389 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:31,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:31,398 INFO L225 Difference]: With dead ends: 9016 [2022-02-10 22:27:31,399 INFO L226 Difference]: Without dead ends: 8537 [2022-02-10 22:27:31,399 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:31,399 INFO L934 BasicCegarLoop]: 251 mSDtfsCounter, 229 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:31,399 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2330 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:31,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8537 states. [2022-02-10 22:27:31,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8537 to 7698. [2022-02-10 22:27:31,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:31,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-02-10 22:27:31,488 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-02-10 22:27:31,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:31,489 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-02-10 22:27:31,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:31,489 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-02-10 22:27:31,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:31,496 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:31,496 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:31,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2022-02-10 22:27:31,496 INFO L402 AbstractCegarLoop]: === Iteration 403 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:31,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:31,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1322614022, now seen corresponding path program 101 times [2022-02-10 22:27:31,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:31,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580859088] [2022-02-10 22:27:31,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:31,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:31,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:31,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:31,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580859088] [2022-02-10 22:27:31,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580859088] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:31,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:31,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:31,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013987013] [2022-02-10 22:27:31,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:31,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:31,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:31,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:31,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:31,614 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:32,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:32,043 INFO L93 Difference]: Finished difference Result 8934 states and 23561 transitions. [2022-02-10 22:27:32,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:27:32,044 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:32,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:32,054 INFO L225 Difference]: With dead ends: 8934 [2022-02-10 22:27:32,054 INFO L226 Difference]: Without dead ends: 8442 [2022-02-10 22:27:32,055 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:27:32,055 INFO L934 BasicCegarLoop]: 246 mSDtfsCounter, 211 mSDsluCounter, 2291 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:32,055 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 2487 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:32,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2022-02-10 22:27:32,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 7682. [2022-02-10 22:27:32,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.642885041010285) internal successors, (20300), 7681 states have internal predecessors, (20300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:32,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20300 transitions. [2022-02-10 22:27:32,146 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20300 transitions. Word has length 109 [2022-02-10 22:27:32,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:32,146 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20300 transitions. [2022-02-10 22:27:32,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:32,146 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20300 transitions. [2022-02-10 22:27:32,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:32,154 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:32,154 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:32,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2022-02-10 22:27:32,154 INFO L402 AbstractCegarLoop]: === Iteration 404 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:32,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:32,154 INFO L85 PathProgramCache]: Analyzing trace with hash 625874648, now seen corresponding path program 102 times [2022-02-10 22:27:32,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:32,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595631124] [2022-02-10 22:27:32,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:32,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:32,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:32,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595631124] [2022-02-10 22:27:32,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595631124] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:32,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:32,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:32,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138545263] [2022-02-10 22:27:32,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:32,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:32,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:32,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:32,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:32,273 INFO L87 Difference]: Start difference. First operand 7682 states and 20300 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:32,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:32,696 INFO L93 Difference]: Finished difference Result 9112 states and 24054 transitions. [2022-02-10 22:27:32,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:27:32,696 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:32,707 INFO L225 Difference]: With dead ends: 9112 [2022-02-10 22:27:32,707 INFO L226 Difference]: Without dead ends: 8633 [2022-02-10 22:27:32,707 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1015, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:27:32,707 INFO L934 BasicCegarLoop]: 246 mSDtfsCounter, 246 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:32,707 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2101 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:32,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8633 states. [2022-02-10 22:27:32,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8633 to 7698. [2022-02-10 22:27:32,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:32,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-02-10 22:27:32,806 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-02-10 22:27:32,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:32,807 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-02-10 22:27:32,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:32,807 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-02-10 22:27:32,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:32,815 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:32,815 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:32,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2022-02-10 22:27:32,815 INFO L402 AbstractCegarLoop]: === Iteration 405 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:32,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:32,816 INFO L85 PathProgramCache]: Analyzing trace with hash -2041569530, now seen corresponding path program 103 times [2022-02-10 22:27:32,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:32,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642062831] [2022-02-10 22:27:32,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:32,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:32,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:32,936 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:32,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642062831] [2022-02-10 22:27:32,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642062831] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:32,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:32,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:32,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174915025] [2022-02-10 22:27:32,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:32,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:32,936 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:32,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:32,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:32,937 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:33,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:33,373 INFO L93 Difference]: Finished difference Result 9070 states and 23943 transitions. [2022-02-10 22:27:33,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:33,373 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:33,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:33,384 INFO L225 Difference]: With dead ends: 9070 [2022-02-10 22:27:33,384 INFO L226 Difference]: Without dead ends: 8590 [2022-02-10 22:27:33,384 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:27:33,385 INFO L934 BasicCegarLoop]: 247 mSDtfsCounter, 231 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:33,385 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 2080 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:33,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8590 states. [2022-02-10 22:27:33,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 7694. [2022-02-10 22:27:33,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:33,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-02-10 22:27:33,486 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-02-10 22:27:33,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:33,486 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-02-10 22:27:33,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:33,486 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-02-10 22:27:33,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:33,495 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:33,495 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:33,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2022-02-10 22:27:33,495 INFO L402 AbstractCegarLoop]: === Iteration 406 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:33,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:33,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1132340426, now seen corresponding path program 104 times [2022-02-10 22:27:33,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:33,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065175117] [2022-02-10 22:27:33,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:33,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:33,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:33,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:33,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065175117] [2022-02-10 22:27:33,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065175117] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:33,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:33,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:33,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044325758] [2022-02-10 22:27:33,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:33,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:33,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:33,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:33,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:33,612 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:34,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:34,129 INFO L93 Difference]: Finished difference Result 9178 states and 24220 transitions. [2022-02-10 22:27:34,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:27:34,130 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:34,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:34,140 INFO L225 Difference]: With dead ends: 9178 [2022-02-10 22:27:34,140 INFO L226 Difference]: Without dead ends: 8658 [2022-02-10 22:27:34,141 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1440, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:27:34,141 INFO L934 BasicCegarLoop]: 251 mSDtfsCounter, 300 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 2703 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:34,141 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 2703 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:34,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2022-02-10 22:27:34,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 7690. [2022-02-10 22:27:34,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-02-10 22:27:34,234 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-02-10 22:27:34,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:34,235 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-02-10 22:27:34,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:34,235 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-02-10 22:27:34,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:34,242 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:34,242 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:34,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2022-02-10 22:27:34,243 INFO L402 AbstractCegarLoop]: === Iteration 407 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:34,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:34,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1204970150, now seen corresponding path program 105 times [2022-02-10 22:27:34,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:34,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512972033] [2022-02-10 22:27:34,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:34,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:34,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:34,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:34,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512972033] [2022-02-10 22:27:34,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512972033] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:34,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:34,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:34,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820078801] [2022-02-10 22:27:34,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:34,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:34,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:34,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:34,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:34,362 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:34,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:34,941 INFO L93 Difference]: Finished difference Result 9276 states and 24476 transitions. [2022-02-10 22:27:34,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:27:34,941 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:34,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:34,951 INFO L225 Difference]: With dead ends: 9276 [2022-02-10 22:27:34,951 INFO L226 Difference]: Without dead ends: 8754 [2022-02-10 22:27:34,952 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=478, Invalid=1502, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:27:34,952 INFO L934 BasicCegarLoop]: 259 mSDtfsCounter, 293 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 2489 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:34,952 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 2489 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:34,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8754 states. [2022-02-10 22:27:35,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8754 to 7694. [2022-02-10 22:27:35,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:35,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-02-10 22:27:35,044 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-02-10 22:27:35,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:35,044 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-02-10 22:27:35,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:35,044 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-02-10 22:27:35,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:35,051 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:35,052 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:35,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2022-02-10 22:27:35,052 INFO L402 AbstractCegarLoop]: === Iteration 408 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:35,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:35,052 INFO L85 PathProgramCache]: Analyzing trace with hash -352945200, now seen corresponding path program 106 times [2022-02-10 22:27:35,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:35,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917117769] [2022-02-10 22:27:35,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:35,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:35,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:35,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:35,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917117769] [2022-02-10 22:27:35,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917117769] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:35,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:35,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:35,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154697302] [2022-02-10 22:27:35,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:35,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:35,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:35,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:35,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:35,195 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:35,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:35,719 INFO L93 Difference]: Finished difference Result 9112 states and 24046 transitions. [2022-02-10 22:27:35,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:35,719 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:35,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:35,729 INFO L225 Difference]: With dead ends: 9112 [2022-02-10 22:27:35,729 INFO L226 Difference]: Without dead ends: 8633 [2022-02-10 22:27:35,729 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=335, Invalid=1071, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:35,729 INFO L934 BasicCegarLoop]: 251 mSDtfsCounter, 229 mSDsluCounter, 2651 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2838 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:35,729 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2838 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:27:35,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8633 states. [2022-02-10 22:27:35,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8633 to 7698. [2022-02-10 22:27:35,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:35,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-02-10 22:27:35,823 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-02-10 22:27:35,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:35,823 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-02-10 22:27:35,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:35,823 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-02-10 22:27:35,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:35,830 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:35,830 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:35,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2022-02-10 22:27:35,831 INFO L402 AbstractCegarLoop]: === Iteration 409 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:35,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:35,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1274577918, now seen corresponding path program 107 times [2022-02-10 22:27:35,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:35,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151451361] [2022-02-10 22:27:35,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:35,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:35,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:35,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:35,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151451361] [2022-02-10 22:27:35,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151451361] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:35,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:35,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:35,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352744682] [2022-02-10 22:27:35,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:35,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:35,947 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:35,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:35,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:35,948 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:36,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:36,369 INFO L93 Difference]: Finished difference Result 9046 states and 23869 transitions. [2022-02-10 22:27:36,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:27:36,370 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:36,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:36,380 INFO L225 Difference]: With dead ends: 9046 [2022-02-10 22:27:36,380 INFO L226 Difference]: Without dead ends: 8558 [2022-02-10 22:27:36,380 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:27:36,380 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 211 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:36,380 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 2232 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:36,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8558 states. [2022-02-10 22:27:36,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8558 to 7686. [2022-02-10 22:27:36,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.64242029928432) internal successors, (20307), 7685 states have internal predecessors, (20307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:36,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20307 transitions. [2022-02-10 22:27:36,468 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20307 transitions. Word has length 109 [2022-02-10 22:27:36,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:36,468 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20307 transitions. [2022-02-10 22:27:36,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:36,469 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20307 transitions. [2022-02-10 22:27:36,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:36,476 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:36,476 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:36,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2022-02-10 22:27:36,476 INFO L402 AbstractCegarLoop]: === Iteration 410 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:36,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:36,476 INFO L85 PathProgramCache]: Analyzing trace with hash -7766182, now seen corresponding path program 108 times [2022-02-10 22:27:36,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:36,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707443697] [2022-02-10 22:27:36,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:36,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:36,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:36,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:36,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707443697] [2022-02-10 22:27:36,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707443697] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:36,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:36,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:36,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646333297] [2022-02-10 22:27:36,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:36,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:36,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:36,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:36,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:36,602 INFO L87 Difference]: Start difference. First operand 7686 states and 20307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:37,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:37,291 INFO L93 Difference]: Finished difference Result 9297 states and 24515 transitions. [2022-02-10 22:27:37,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:27:37,291 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:37,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:37,302 INFO L225 Difference]: With dead ends: 9297 [2022-02-10 22:27:37,302 INFO L226 Difference]: Without dead ends: 8732 [2022-02-10 22:27:37,302 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=658, Invalid=1994, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:27:37,302 INFO L934 BasicCegarLoop]: 266 mSDtfsCounter, 362 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 2243 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:37,302 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 2243 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:37,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8732 states. [2022-02-10 22:27:37,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8732 to 7690. [2022-02-10 22:27:37,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.641956041097672) internal successors, (20314), 7689 states have internal predecessors, (20314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:37,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20314 transitions. [2022-02-10 22:27:37,395 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20314 transitions. Word has length 109 [2022-02-10 22:27:37,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:37,395 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20314 transitions. [2022-02-10 22:27:37,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:37,395 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20314 transitions. [2022-02-10 22:27:37,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:37,403 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:37,403 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:37,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2022-02-10 22:27:37,403 INFO L402 AbstractCegarLoop]: === Iteration 411 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:37,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:37,403 INFO L85 PathProgramCache]: Analyzing trace with hash 856664880, now seen corresponding path program 109 times [2022-02-10 22:27:37,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:37,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552385223] [2022-02-10 22:27:37,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:37,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:37,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:37,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:37,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552385223] [2022-02-10 22:27:37,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552385223] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:37,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:37,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:37,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592754765] [2022-02-10 22:27:37,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:37,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:37,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:37,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:37,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:37,521 INFO L87 Difference]: Start difference. First operand 7690 states and 20314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:38,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:38,114 INFO L93 Difference]: Finished difference Result 9180 states and 24208 transitions. [2022-02-10 22:27:38,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:27:38,115 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:38,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:38,125 INFO L225 Difference]: With dead ends: 9180 [2022-02-10 22:27:38,125 INFO L226 Difference]: Without dead ends: 8658 [2022-02-10 22:27:38,125 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:27:38,125 INFO L934 BasicCegarLoop]: 259 mSDtfsCounter, 299 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:38,125 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 2409 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:38,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2022-02-10 22:27:38,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 7694. [2022-02-10 22:27:38,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6414922656960873) internal successors, (20321), 7693 states have internal predecessors, (20321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:38,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20321 transitions. [2022-02-10 22:27:38,212 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20321 transitions. Word has length 109 [2022-02-10 22:27:38,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:38,212 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20321 transitions. [2022-02-10 22:27:38,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:38,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20321 transitions. [2022-02-10 22:27:38,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:38,220 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:38,220 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:38,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2022-02-10 22:27:38,220 INFO L402 AbstractCegarLoop]: === Iteration 412 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:38,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:38,220 INFO L85 PathProgramCache]: Analyzing trace with hash -701250470, now seen corresponding path program 110 times [2022-02-10 22:27:38,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:38,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847196843] [2022-02-10 22:27:38,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:38,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:38,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:38,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:38,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847196843] [2022-02-10 22:27:38,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847196843] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:38,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:38,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:38,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67463571] [2022-02-10 22:27:38,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:38,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:38,347 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:38,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:38,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:38,347 INFO L87 Difference]: Start difference. First operand 7694 states and 20321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:38,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:38,784 INFO L93 Difference]: Finished difference Result 9032 states and 23822 transitions. [2022-02-10 22:27:38,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:38,784 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:38,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:38,794 INFO L225 Difference]: With dead ends: 9032 [2022-02-10 22:27:38,794 INFO L226 Difference]: Without dead ends: 8553 [2022-02-10 22:27:38,794 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:38,795 INFO L934 BasicCegarLoop]: 247 mSDtfsCounter, 226 mSDsluCounter, 2057 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:38,795 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2252 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:38,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8553 states. [2022-02-10 22:27:38,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8553 to 7698. [2022-02-10 22:27:38,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6410289723268807) internal successors, (20328), 7697 states have internal predecessors, (20328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:38,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20328 transitions. [2022-02-10 22:27:38,884 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20328 transitions. Word has length 109 [2022-02-10 22:27:38,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:38,884 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20328 transitions. [2022-02-10 22:27:38,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:38,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20328 transitions. [2022-02-10 22:27:38,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:38,892 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:38,892 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:38,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2022-02-10 22:27:38,892 INFO L402 AbstractCegarLoop]: === Iteration 413 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:38,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:38,892 INFO L85 PathProgramCache]: Analyzing trace with hash 926272648, now seen corresponding path program 111 times [2022-02-10 22:27:38,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:38,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630213222] [2022-02-10 22:27:38,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:38,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:39,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:39,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:39,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630213222] [2022-02-10 22:27:39,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630213222] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:39,028 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:39,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:39,029 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967081418] [2022-02-10 22:27:39,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:39,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:39,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:39,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:39,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:39,029 INFO L87 Difference]: Start difference. First operand 7698 states and 20328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:39,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:39,436 INFO L93 Difference]: Finished difference Result 8934 states and 23557 transitions. [2022-02-10 22:27:39,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:27:39,437 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:39,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:39,447 INFO L225 Difference]: With dead ends: 8934 [2022-02-10 22:27:39,447 INFO L226 Difference]: Without dead ends: 8438 [2022-02-10 22:27:39,448 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:27:39,448 INFO L934 BasicCegarLoop]: 241 mSDtfsCounter, 200 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2774 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:39,448 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2774 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:39,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8438 states. [2022-02-10 22:27:39,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8438 to 7678. [2022-02-10 22:27:39,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7678 states, 7677 states have (on average 2.6428292301680343) internal successors, (20289), 7677 states have internal predecessors, (20289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:39,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7678 states to 7678 states and 20289 transitions. [2022-02-10 22:27:39,540 INFO L78 Accepts]: Start accepts. Automaton has 7678 states and 20289 transitions. Word has length 109 [2022-02-10 22:27:39,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:39,541 INFO L470 AbstractCegarLoop]: Abstraction has 7678 states and 20289 transitions. [2022-02-10 22:27:39,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:39,541 INFO L276 IsEmpty]: Start isEmpty. Operand 7678 states and 20289 transitions. [2022-02-10 22:27:39,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:39,548 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:39,549 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:39,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2022-02-10 22:27:39,549 INFO L402 AbstractCegarLoop]: === Iteration 414 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:39,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:39,549 INFO L85 PathProgramCache]: Analyzing trace with hash -477638808, now seen corresponding path program 112 times [2022-02-10 22:27:39,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:39,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994908255] [2022-02-10 22:27:39,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:39,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:39,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:39,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:39,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994908255] [2022-02-10 22:27:39,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994908255] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:39,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:39,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:39,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687788809] [2022-02-10 22:27:39,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:39,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:39,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:39,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:39,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:39,668 INFO L87 Difference]: Start difference. First operand 7678 states and 20289 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:40,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:40,133 INFO L93 Difference]: Finished difference Result 8968 states and 23658 transitions. [2022-02-10 22:27:40,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:27:40,134 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:40,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:40,143 INFO L225 Difference]: With dead ends: 8968 [2022-02-10 22:27:40,143 INFO L226 Difference]: Without dead ends: 8489 [2022-02-10 22:27:40,144 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:27:40,144 INFO L934 BasicCegarLoop]: 244 mSDtfsCounter, 236 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:40,144 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2790 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:40,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8489 states. [2022-02-10 22:27:40,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8489 to 7698. [2022-02-10 22:27:40,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:40,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-02-10 22:27:40,234 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-02-10 22:27:40,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:40,234 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-02-10 22:27:40,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:40,235 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-02-10 22:27:40,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:40,242 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:40,242 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:40,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2022-02-10 22:27:40,242 INFO L402 AbstractCegarLoop]: === Iteration 415 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:40,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:40,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1149884310, now seen corresponding path program 113 times [2022-02-10 22:27:40,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:40,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685269472] [2022-02-10 22:27:40,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:40,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:40,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:40,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:40,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685269472] [2022-02-10 22:27:40,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685269472] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:40,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:40,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:40,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179593008] [2022-02-10 22:27:40,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:40,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:40,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:40,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:40,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:40,360 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:40,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:40,796 INFO L93 Difference]: Finished difference Result 8926 states and 23547 transitions. [2022-02-10 22:27:40,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:40,796 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:40,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:40,806 INFO L225 Difference]: With dead ends: 8926 [2022-02-10 22:27:40,806 INFO L226 Difference]: Without dead ends: 8446 [2022-02-10 22:27:40,806 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:40,807 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 227 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:40,807 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2319 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:40,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8446 states. [2022-02-10 22:27:40,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8446 to 7694. [2022-02-10 22:27:40,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:40,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-02-10 22:27:40,895 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-02-10 22:27:40,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:40,895 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-02-10 22:27:40,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:40,895 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-02-10 22:27:40,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:40,903 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:40,903 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:40,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2022-02-10 22:27:40,904 INFO L402 AbstractCegarLoop]: === Iteration 416 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:40,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:40,904 INFO L85 PathProgramCache]: Analyzing trace with hash 28826970, now seen corresponding path program 114 times [2022-02-10 22:27:40,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:40,904 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69101276] [2022-02-10 22:27:40,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:40,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:41,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:41,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:41,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69101276] [2022-02-10 22:27:41,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69101276] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:41,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:41,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:41,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27825060] [2022-02-10 22:27:41,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:41,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:41,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:41,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:41,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:41,017 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:41,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:41,518 INFO L93 Difference]: Finished difference Result 9014 states and 23769 transitions. [2022-02-10 22:27:41,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:27:41,518 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:41,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:41,528 INFO L225 Difference]: With dead ends: 9014 [2022-02-10 22:27:41,528 INFO L226 Difference]: Without dead ends: 8494 [2022-02-10 22:27:41,528 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1363, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 22:27:41,529 INFO L934 BasicCegarLoop]: 249 mSDtfsCounter, 293 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 2517 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:41,529 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 2517 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:41,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8494 states. [2022-02-10 22:27:41,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8494 to 7690. [2022-02-10 22:27:41,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-02-10 22:27:41,616 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-02-10 22:27:41,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:41,616 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-02-10 22:27:41,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:41,616 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-02-10 22:27:41,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:41,623 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:41,623 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:41,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2022-02-10 22:27:41,623 INFO L402 AbstractCegarLoop]: === Iteration 417 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:41,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:41,624 INFO L85 PathProgramCache]: Analyzing trace with hash 101456694, now seen corresponding path program 115 times [2022-02-10 22:27:41,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:41,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928273494] [2022-02-10 22:27:41,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:41,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:41,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:41,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:41,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928273494] [2022-02-10 22:27:41,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928273494] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:41,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:41,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:41,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45183906] [2022-02-10 22:27:41,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:41,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:41,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:41,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:41,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:41,745 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:42,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:42,326 INFO L93 Difference]: Finished difference Result 9128 states and 24069 transitions. [2022-02-10 22:27:42,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:27:42,326 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:42,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:42,336 INFO L225 Difference]: With dead ends: 9128 [2022-02-10 22:27:42,336 INFO L226 Difference]: Without dead ends: 8606 [2022-02-10 22:27:42,336 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=469, Invalid=1511, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:27:42,336 INFO L934 BasicCegarLoop]: 251 mSDtfsCounter, 335 mSDsluCounter, 2478 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:42,337 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 2661 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:42,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8606 states. [2022-02-10 22:27:42,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8606 to 7694. [2022-02-10 22:27:42,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:42,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-02-10 22:27:42,471 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-02-10 22:27:42,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:42,471 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-02-10 22:27:42,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:42,471 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-02-10 22:27:42,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:42,482 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:42,482 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:42,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2022-02-10 22:27:42,482 INFO L402 AbstractCegarLoop]: === Iteration 418 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:42,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:42,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1456458656, now seen corresponding path program 116 times [2022-02-10 22:27:42,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:42,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70001107] [2022-02-10 22:27:42,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:42,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:42,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:42,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:42,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70001107] [2022-02-10 22:27:42,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70001107] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:42,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:42,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:42,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701943984] [2022-02-10 22:27:42,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:42,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:42,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:42,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:42,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:42,615 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:43,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:43,084 INFO L93 Difference]: Finished difference Result 8964 states and 23639 transitions. [2022-02-10 22:27:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:43,085 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:43,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:43,095 INFO L225 Difference]: With dead ends: 8964 [2022-02-10 22:27:43,095 INFO L226 Difference]: Without dead ends: 8485 [2022-02-10 22:27:43,095 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:27:43,096 INFO L934 BasicCegarLoop]: 243 mSDtfsCounter, 262 mSDsluCounter, 2307 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:43,096 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 2490 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:43,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8485 states. [2022-02-10 22:27:43,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8485 to 7698. [2022-02-10 22:27:43,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:43,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-02-10 22:27:43,182 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-02-10 22:27:43,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:43,182 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-02-10 22:27:43,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:43,182 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-02-10 22:27:43,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:43,189 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:43,189 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:43,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2022-02-10 22:27:43,189 INFO L402 AbstractCegarLoop]: === Iteration 419 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:43,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:43,189 INFO L85 PathProgramCache]: Analyzing trace with hash 171064462, now seen corresponding path program 117 times [2022-02-10 22:27:43,189 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:43,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074679846] [2022-02-10 22:27:43,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:43,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:43,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:43,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:43,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074679846] [2022-02-10 22:27:43,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074679846] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:43,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:43,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:43,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185805215] [2022-02-10 22:27:43,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:43,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:43,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:43,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:43,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:43,305 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:43,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:43,738 INFO L93 Difference]: Finished difference Result 8898 states and 23462 transitions. [2022-02-10 22:27:43,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:27:43,739 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:43,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:43,749 INFO L225 Difference]: With dead ends: 8898 [2022-02-10 22:27:43,750 INFO L226 Difference]: Without dead ends: 8410 [2022-02-10 22:27:43,750 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=942, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:27:43,750 INFO L934 BasicCegarLoop]: 236 mSDtfsCounter, 242 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:43,750 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2538 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:43,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8410 states. [2022-02-10 22:27:43,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8410 to 7686. [2022-02-10 22:27:43,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.64242029928432) internal successors, (20307), 7685 states have internal predecessors, (20307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:43,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20307 transitions. [2022-02-10 22:27:43,849 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20307 transitions. Word has length 109 [2022-02-10 22:27:43,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:43,849 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20307 transitions. [2022-02-10 22:27:43,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:43,849 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20307 transitions. [2022-02-10 22:27:43,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:43,856 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:43,856 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:43,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418 [2022-02-10 22:27:43,857 INFO L402 AbstractCegarLoop]: === Iteration 420 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:43,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:43,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1111279638, now seen corresponding path program 118 times [2022-02-10 22:27:43,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:43,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975454750] [2022-02-10 22:27:43,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:43,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:43,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:43,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:43,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975454750] [2022-02-10 22:27:43,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975454750] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:43,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:43,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:43,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757802023] [2022-02-10 22:27:43,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:43,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:43,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:43,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:43,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:43,974 INFO L87 Difference]: Start difference. First operand 7686 states and 20307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:44,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:44,688 INFO L93 Difference]: Finished difference Result 9261 states and 24416 transitions. [2022-02-10 22:27:44,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:27:44,688 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:44,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:44,698 INFO L225 Difference]: With dead ends: 9261 [2022-02-10 22:27:44,698 INFO L226 Difference]: Without dead ends: 8696 [2022-02-10 22:27:44,699 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=665, Invalid=2091, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:27:44,699 INFO L934 BasicCegarLoop]: 259 mSDtfsCounter, 409 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2578 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:44,699 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2578 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:44,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8696 states. [2022-02-10 22:27:44,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8696 to 7690. [2022-02-10 22:27:44,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.641956041097672) internal successors, (20314), 7689 states have internal predecessors, (20314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:44,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20314 transitions. [2022-02-10 22:27:44,795 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20314 transitions. Word has length 109 [2022-02-10 22:27:44,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:44,796 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20314 transitions. [2022-02-10 22:27:44,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:44,796 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20314 transitions. [2022-02-10 22:27:44,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:44,805 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:44,805 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:44,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable419 [2022-02-10 22:27:44,805 INFO L402 AbstractCegarLoop]: === Iteration 421 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:44,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:44,806 INFO L85 PathProgramCache]: Analyzing trace with hash -246848576, now seen corresponding path program 119 times [2022-02-10 22:27:44,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:44,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746958659] [2022-02-10 22:27:44,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:44,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:44,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:44,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:44,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746958659] [2022-02-10 22:27:44,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746958659] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:44,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:44,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:44,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263690803] [2022-02-10 22:27:44,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:44,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:44,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:44,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:44,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:44,943 INFO L87 Difference]: Start difference. First operand 7690 states and 20314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:45,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:45,581 INFO L93 Difference]: Finished difference Result 9136 states and 24087 transitions. [2022-02-10 22:27:45,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:27:45,581 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:45,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:45,591 INFO L225 Difference]: With dead ends: 9136 [2022-02-10 22:27:45,591 INFO L226 Difference]: Without dead ends: 8614 [2022-02-10 22:27:45,591 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:27:45,592 INFO L934 BasicCegarLoop]: 251 mSDtfsCounter, 341 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:45,592 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 2576 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:45,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8614 states. [2022-02-10 22:27:45,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8614 to 7694. [2022-02-10 22:27:45,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6414922656960873) internal successors, (20321), 7693 states have internal predecessors, (20321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:45,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20321 transitions. [2022-02-10 22:27:45,682 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20321 transitions. Word has length 109 [2022-02-10 22:27:45,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:45,682 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20321 transitions. [2022-02-10 22:27:45,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:45,682 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20321 transitions. [2022-02-10 22:27:45,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:45,690 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:45,690 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:45,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable420 [2022-02-10 22:27:45,690 INFO L402 AbstractCegarLoop]: === Iteration 422 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:45,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:45,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1804763926, now seen corresponding path program 120 times [2022-02-10 22:27:45,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:45,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835234538] [2022-02-10 22:27:45,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:45,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:45,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:45,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:45,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835234538] [2022-02-10 22:27:45,806 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835234538] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:45,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:45,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:45,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056204751] [2022-02-10 22:27:45,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:45,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:45,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:45,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:45,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:45,807 INFO L87 Difference]: Start difference. First operand 7694 states and 20321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:46,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:46,246 INFO L93 Difference]: Finished difference Result 8972 states and 23657 transitions. [2022-02-10 22:27:46,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:46,246 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:46,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:46,256 INFO L225 Difference]: With dead ends: 8972 [2022-02-10 22:27:46,257 INFO L226 Difference]: Without dead ends: 8493 [2022-02-10 22:27:46,257 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=326, Invalid=1080, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:46,257 INFO L934 BasicCegarLoop]: 239 mSDtfsCounter, 270 mSDsluCounter, 2142 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:46,257 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2323 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:46,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8493 states. [2022-02-10 22:27:46,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8493 to 7698. [2022-02-10 22:27:46,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6410289723268807) internal successors, (20328), 7697 states have internal predecessors, (20328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:46,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20328 transitions. [2022-02-10 22:27:46,348 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20328 transitions. Word has length 109 [2022-02-10 22:27:46,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:46,349 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20328 transitions. [2022-02-10 22:27:46,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:46,349 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20328 transitions. [2022-02-10 22:27:46,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:46,356 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:46,356 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:46,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable421 [2022-02-10 22:27:46,356 INFO L402 AbstractCegarLoop]: === Iteration 423 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:46,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:46,356 INFO L85 PathProgramCache]: Analyzing trace with hash -177240808, now seen corresponding path program 121 times [2022-02-10 22:27:46,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:46,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521117284] [2022-02-10 22:27:46,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:46,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:46,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:46,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:46,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521117284] [2022-02-10 22:27:46,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521117284] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:46,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:46,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:46,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409014967] [2022-02-10 22:27:46,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:46,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:46,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:46,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:46,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:46,469 INFO L87 Difference]: Start difference. First operand 7698 states and 20328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:46,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:46,864 INFO L93 Difference]: Finished difference Result 8898 states and 23458 transitions. [2022-02-10 22:27:46,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:27:46,865 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:46,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:46,876 INFO L225 Difference]: With dead ends: 8898 [2022-02-10 22:27:46,876 INFO L226 Difference]: Without dead ends: 8406 [2022-02-10 22:27:46,876 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:27:46,876 INFO L934 BasicCegarLoop]: 232 mSDtfsCounter, 249 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:46,876 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 2252 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:46,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8406 states. [2022-02-10 22:27:46,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8406 to 7682. [2022-02-10 22:27:46,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.642364275484963) internal successors, (20296), 7681 states have internal predecessors, (20296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:46,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20296 transitions. [2022-02-10 22:27:46,973 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20296 transitions. Word has length 109 [2022-02-10 22:27:46,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:46,973 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20296 transitions. [2022-02-10 22:27:46,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:46,973 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20296 transitions. [2022-02-10 22:27:46,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:46,981 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:46,981 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:46,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable422 [2022-02-10 22:27:46,981 INFO L402 AbstractCegarLoop]: === Iteration 424 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:46,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:46,981 INFO L85 PathProgramCache]: Analyzing trace with hash -758803116, now seen corresponding path program 122 times [2022-02-10 22:27:46,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:46,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911237110] [2022-02-10 22:27:46,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:46,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:47,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:47,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:47,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911237110] [2022-02-10 22:27:47,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911237110] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:47,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:47,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:47,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994764002] [2022-02-10 22:27:47,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:47,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:47,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:47,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:47,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:47,092 INFO L87 Difference]: Start difference. First operand 7682 states and 20296 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:47,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:47,770 INFO L93 Difference]: Finished difference Result 9142 states and 24070 transitions. [2022-02-10 22:27:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 22:27:47,770 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:47,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:47,780 INFO L225 Difference]: With dead ends: 9142 [2022-02-10 22:27:47,780 INFO L226 Difference]: Without dead ends: 8534 [2022-02-10 22:27:47,781 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=796, Invalid=2510, Unknown=0, NotChecked=0, Total=3306 [2022-02-10 22:27:47,781 INFO L934 BasicCegarLoop]: 259 mSDtfsCounter, 474 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:47,781 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2785 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:47,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8534 states. [2022-02-10 22:27:47,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8534 to 7686. [2022-02-10 22:27:47,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6418998048145736) internal successors, (20303), 7685 states have internal predecessors, (20303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:47,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20303 transitions. [2022-02-10 22:27:47,870 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20303 transitions. Word has length 109 [2022-02-10 22:27:47,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:47,870 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20303 transitions. [2022-02-10 22:27:47,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:47,870 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20303 transitions. [2022-02-10 22:27:47,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:47,877 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:47,877 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:47,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable423 [2022-02-10 22:27:47,878 INFO L402 AbstractCegarLoop]: === Iteration 425 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:47,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:47,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1265692440, now seen corresponding path program 123 times [2022-02-10 22:27:47,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:47,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604914716] [2022-02-10 22:27:47,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:47,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:47,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:47,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:47,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604914716] [2022-02-10 22:27:47,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604914716] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:47,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:47,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:47,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167422986] [2022-02-10 22:27:47,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:47,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:47,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:47,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:47,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:47,990 INFO L87 Difference]: Start difference. First operand 7686 states and 20303 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:48,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:48,650 INFO L93 Difference]: Finished difference Result 9037 states and 23796 transitions. [2022-02-10 22:27:48,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:27:48,650 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:48,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:48,661 INFO L225 Difference]: With dead ends: 9037 [2022-02-10 22:27:48,661 INFO L226 Difference]: Without dead ends: 8472 [2022-02-10 22:27:48,662 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:27:48,662 INFO L934 BasicCegarLoop]: 259 mSDtfsCounter, 421 mSDsluCounter, 2467 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:48,662 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 2647 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:48,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8472 states. [2022-02-10 22:27:48,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8472 to 7690. [2022-02-10 22:27:48,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6414358174014825) internal successors, (20310), 7689 states have internal predecessors, (20310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:48,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20310 transitions. [2022-02-10 22:27:48,749 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20310 transitions. Word has length 109 [2022-02-10 22:27:48,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:48,750 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20310 transitions. [2022-02-10 22:27:48,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:48,750 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20310 transitions. [2022-02-10 22:27:48,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:48,757 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:48,757 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:48,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable424 [2022-02-10 22:27:48,757 INFO L402 AbstractCegarLoop]: === Iteration 426 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:48,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:48,757 INFO L85 PathProgramCache]: Analyzing trace with hash 2130123502, now seen corresponding path program 124 times [2022-02-10 22:27:48,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:48,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085498633] [2022-02-10 22:27:48,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:48,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:48,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:48,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:48,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085498633] [2022-02-10 22:27:48,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085498633] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:48,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:48,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:48,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690154513] [2022-02-10 22:27:48,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:48,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:48,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:48,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:48,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:48,874 INFO L87 Difference]: Start difference. First operand 7690 states and 20310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:49,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:49,422 INFO L93 Difference]: Finished difference Result 8932 states and 23522 transitions. [2022-02-10 22:27:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:27:49,422 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:49,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:49,432 INFO L225 Difference]: With dead ends: 8932 [2022-02-10 22:27:49,432 INFO L226 Difference]: Without dead ends: 8410 [2022-02-10 22:27:49,432 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:27:49,432 INFO L934 BasicCegarLoop]: 247 mSDtfsCounter, 353 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:49,432 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 1984 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:49,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8410 states. [2022-02-10 22:27:49,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8410 to 7694. [2022-02-10 22:27:49,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6409723124918756) internal successors, (20317), 7693 states have internal predecessors, (20317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:49,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20317 transitions. [2022-02-10 22:27:49,521 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20317 transitions. Word has length 109 [2022-02-10 22:27:49,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:49,521 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20317 transitions. [2022-02-10 22:27:49,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:49,521 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20317 transitions. [2022-02-10 22:27:49,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:49,528 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:49,528 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:49,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable425 [2022-02-10 22:27:49,528 INFO L402 AbstractCegarLoop]: === Iteration 427 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:49,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:49,529 INFO L85 PathProgramCache]: Analyzing trace with hash 572208152, now seen corresponding path program 125 times [2022-02-10 22:27:49,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:49,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047996497] [2022-02-10 22:27:49,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:49,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:49,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:49,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:49,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047996497] [2022-02-10 22:27:49,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047996497] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:49,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:49,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:49,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288239454] [2022-02-10 22:27:49,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:49,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:49,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:49,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:49,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:49,641 INFO L87 Difference]: Start difference. First operand 7694 states and 20317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:50,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:50,085 INFO L93 Difference]: Finished difference Result 8808 states and 23202 transitions. [2022-02-10 22:27:50,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:50,085 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:50,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:50,095 INFO L225 Difference]: With dead ends: 8808 [2022-02-10 22:27:50,095 INFO L226 Difference]: Without dead ends: 8329 [2022-02-10 22:27:50,095 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:27:50,095 INFO L934 BasicCegarLoop]: 235 mSDtfsCounter, 288 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 2296 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:50,095 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 2296 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:50,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8329 states. [2022-02-10 22:27:50,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8329 to 7698. [2022-02-10 22:27:50,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6405092893335067) internal successors, (20324), 7697 states have internal predecessors, (20324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:50,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20324 transitions. [2022-02-10 22:27:50,182 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20324 transitions. Word has length 109 [2022-02-10 22:27:50,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:50,182 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20324 transitions. [2022-02-10 22:27:50,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:50,182 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20324 transitions. [2022-02-10 22:27:50,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:50,189 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:50,189 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:50,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426 [2022-02-10 22:27:50,190 INFO L402 AbstractCegarLoop]: === Iteration 428 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:50,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:50,190 INFO L85 PathProgramCache]: Analyzing trace with hash -2095236026, now seen corresponding path program 126 times [2022-02-10 22:27:50,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:50,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314514072] [2022-02-10 22:27:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:50,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:50,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:50,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314514072] [2022-02-10 22:27:50,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314514072] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:50,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:50,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:50,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392044744] [2022-02-10 22:27:50,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:50,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:50,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:50,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:50,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:50,304 INFO L87 Difference]: Start difference. First operand 7698 states and 20324 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:50,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:50,738 INFO L93 Difference]: Finished difference Result 8646 states and 22761 transitions. [2022-02-10 22:27:50,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:27:50,738 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:50,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:50,749 INFO L225 Difference]: With dead ends: 8646 [2022-02-10 22:27:50,749 INFO L226 Difference]: Without dead ends: 8122 [2022-02-10 22:27:50,749 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=289, Invalid=833, Unknown=0, NotChecked=0, Total=1122 [2022-02-10 22:27:50,749 INFO L934 BasicCegarLoop]: 228 mSDtfsCounter, 219 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:50,750 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2680 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:50,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8122 states. [2022-02-10 22:27:50,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8122 to 7650. [2022-02-10 22:27:50,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7650 states, 7649 states have (on average 2.6434828082102237) internal successors, (20220), 7649 states have internal predecessors, (20220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:50,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7650 states to 7650 states and 20220 transitions. [2022-02-10 22:27:50,866 INFO L78 Accepts]: Start accepts. Automaton has 7650 states and 20220 transitions. Word has length 109 [2022-02-10 22:27:50,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:50,866 INFO L470 AbstractCegarLoop]: Abstraction has 7650 states and 20220 transitions. [2022-02-10 22:27:50,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:50,866 INFO L276 IsEmpty]: Start isEmpty. Operand 7650 states and 20220 transitions. [2022-02-10 22:27:50,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:50,875 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:50,875 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:50,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable427 [2022-02-10 22:27:50,875 INFO L402 AbstractCegarLoop]: === Iteration 429 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:50,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:50,876 INFO L85 PathProgramCache]: Analyzing trace with hash 533071862, now seen corresponding path program 127 times [2022-02-10 22:27:50,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:50,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260194162] [2022-02-10 22:27:50,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:50,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:51,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:51,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:51,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260194162] [2022-02-10 22:27:51,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260194162] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:51,003 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:51,003 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:51,003 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056005297] [2022-02-10 22:27:51,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:51,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:51,003 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:51,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:51,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:51,003 INFO L87 Difference]: Start difference. First operand 7650 states and 20220 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:51,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:51,928 INFO L93 Difference]: Finished difference Result 9046 states and 23741 transitions. [2022-02-10 22:27:51,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-10 22:27:51,928 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:51,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:51,938 INFO L225 Difference]: With dead ends: 9046 [2022-02-10 22:27:51,938 INFO L226 Difference]: Without dead ends: 8163 [2022-02-10 22:27:51,939 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1234 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=999, Invalid=3291, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:27:51,939 INFO L934 BasicCegarLoop]: 329 mSDtfsCounter, 618 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 3418 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:51,939 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [618 Valid, 3418 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:27:51,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8163 states. [2022-02-10 22:27:52,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8163 to 7375. [2022-02-10 22:27:52,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7375 states, 7374 states have (on average 2.6471385950637374) internal successors, (19520), 7374 states have internal predecessors, (19520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:52,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7375 states to 7375 states and 19520 transitions. [2022-02-10 22:27:52,026 INFO L78 Accepts]: Start accepts. Automaton has 7375 states and 19520 transitions. Word has length 109 [2022-02-10 22:27:52,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:52,026 INFO L470 AbstractCegarLoop]: Abstraction has 7375 states and 19520 transitions. [2022-02-10 22:27:52,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:52,026 INFO L276 IsEmpty]: Start isEmpty. Operand 7375 states and 19520 transitions. [2022-02-10 22:27:52,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:52,034 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:52,034 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:52,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable428 [2022-02-10 22:27:52,034 INFO L402 AbstractCegarLoop]: === Iteration 430 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:52,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:52,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1937111454, now seen corresponding path program 128 times [2022-02-10 22:27:52,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:52,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312178888] [2022-02-10 22:27:52,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:52,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:52,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:52,141 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:52,141 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312178888] [2022-02-10 22:27:52,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312178888] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:52,141 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:52,141 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:52,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781560752] [2022-02-10 22:27:52,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:52,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:52,141 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:52,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:52,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:52,142 INFO L87 Difference]: Start difference. First operand 7375 states and 19520 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:52,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:52,899 INFO L93 Difference]: Finished difference Result 8883 states and 23436 transitions. [2022-02-10 22:27:52,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-10 22:27:52,900 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:52,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:52,910 INFO L225 Difference]: With dead ends: 8883 [2022-02-10 22:27:52,910 INFO L226 Difference]: Without dead ends: 8275 [2022-02-10 22:27:52,911 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1148 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=850, Invalid=3056, Unknown=0, NotChecked=0, Total=3906 [2022-02-10 22:27:52,911 INFO L934 BasicCegarLoop]: 309 mSDtfsCounter, 488 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:52,911 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 3170 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:52,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8275 states. [2022-02-10 22:27:52,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8275 to 7379. [2022-02-10 22:27:52,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7379 states, 7378 states have (on average 2.646652209270805) internal successors, (19527), 7378 states have internal predecessors, (19527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:52,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7379 states to 7379 states and 19527 transitions. [2022-02-10 22:27:52,998 INFO L78 Accepts]: Start accepts. Automaton has 7379 states and 19527 transitions. Word has length 109 [2022-02-10 22:27:52,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:52,999 INFO L470 AbstractCegarLoop]: Abstraction has 7379 states and 19527 transitions. [2022-02-10 22:27:52,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:52,999 INFO L276 IsEmpty]: Start isEmpty. Operand 7379 states and 19527 transitions. [2022-02-10 22:27:53,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:53,006 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:53,006 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:53,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable429 [2022-02-10 22:27:53,006 INFO L402 AbstractCegarLoop]: === Iteration 431 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:53,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:53,006 INFO L85 PathProgramCache]: Analyzing trace with hash -333360286, now seen corresponding path program 129 times [2022-02-10 22:27:53,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:53,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901356246] [2022-02-10 22:27:53,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:53,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:53,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:53,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:53,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901356246] [2022-02-10 22:27:53,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901356246] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:53,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:53,121 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:53,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928959843] [2022-02-10 22:27:53,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:53,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:53,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:53,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:53,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:53,121 INFO L87 Difference]: Start difference. First operand 7379 states and 19527 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:53,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:53,836 INFO L93 Difference]: Finished difference Result 8758 states and 23107 transitions. [2022-02-10 22:27:53,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:27:53,837 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:53,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:53,848 INFO L225 Difference]: With dead ends: 8758 [2022-02-10 22:27:53,848 INFO L226 Difference]: Without dead ends: 8193 [2022-02-10 22:27:53,848 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=620, Invalid=2242, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:27:53,849 INFO L934 BasicCegarLoop]: 308 mSDtfsCounter, 383 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:53,849 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 3196 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:27:53,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8193 states. [2022-02-10 22:27:53,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8193 to 7383. [2022-02-10 22:27:53,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7383 states, 7382 states have (on average 2.646166350582498) internal successors, (19534), 7382 states have internal predecessors, (19534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:53,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7383 states to 7383 states and 19534 transitions. [2022-02-10 22:27:53,935 INFO L78 Accepts]: Start accepts. Automaton has 7383 states and 19534 transitions. Word has length 109 [2022-02-10 22:27:53,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:53,935 INFO L470 AbstractCegarLoop]: Abstraction has 7383 states and 19534 transitions. [2022-02-10 22:27:53,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:53,935 INFO L276 IsEmpty]: Start isEmpty. Operand 7383 states and 19534 transitions. [2022-02-10 22:27:53,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:53,942 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:53,942 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:53,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable430 [2022-02-10 22:27:53,942 INFO L402 AbstractCegarLoop]: === Iteration 432 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:53,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:53,943 INFO L85 PathProgramCache]: Analyzing trace with hash 531070776, now seen corresponding path program 130 times [2022-02-10 22:27:53,943 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:53,943 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269919326] [2022-02-10 22:27:53,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:53,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:54,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:54,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:54,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269919326] [2022-02-10 22:27:54,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269919326] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:54,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:54,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:54,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444432883] [2022-02-10 22:27:54,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:54,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:54,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:54,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:54,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:54,054 INFO L87 Difference]: Start difference. First operand 7383 states and 19534 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:54,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:54,561 INFO L93 Difference]: Finished difference Result 8633 states and 22778 transitions. [2022-02-10 22:27:54,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:27:54,562 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:54,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:54,573 INFO L225 Difference]: With dead ends: 8633 [2022-02-10 22:27:54,573 INFO L226 Difference]: Without dead ends: 8111 [2022-02-10 22:27:54,573 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1627, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:27:54,574 INFO L934 BasicCegarLoop]: 296 mSDtfsCounter, 319 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:54,574 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 2095 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:54,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8111 states. [2022-02-10 22:27:54,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8111 to 7387. [2022-02-10 22:27:54,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7387 states, 7386 states have (on average 2.6456810181424317) internal successors, (19541), 7386 states have internal predecessors, (19541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:54,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7387 states to 7387 states and 19541 transitions. [2022-02-10 22:27:54,669 INFO L78 Accepts]: Start accepts. Automaton has 7387 states and 19541 transitions. Word has length 109 [2022-02-10 22:27:54,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:54,669 INFO L470 AbstractCegarLoop]: Abstraction has 7387 states and 19541 transitions. [2022-02-10 22:27:54,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:54,669 INFO L276 IsEmpty]: Start isEmpty. Operand 7387 states and 19541 transitions. [2022-02-10 22:27:54,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:54,676 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:54,676 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:54,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable431 [2022-02-10 22:27:54,676 INFO L402 AbstractCegarLoop]: === Iteration 433 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:54,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:54,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1026844574, now seen corresponding path program 131 times [2022-02-10 22:27:54,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:54,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151850006] [2022-02-10 22:27:54,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:54,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:54,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:54,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:54,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151850006] [2022-02-10 22:27:54,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151850006] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:54,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:54,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:54,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504368432] [2022-02-10 22:27:54,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:54,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:54,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:54,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:54,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:54,796 INFO L87 Difference]: Start difference. First operand 7387 states and 19541 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:55,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:55,188 INFO L93 Difference]: Finished difference Result 8469 states and 22348 transitions. [2022-02-10 22:27:55,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:55,188 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:55,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:55,197 INFO L225 Difference]: With dead ends: 8469 [2022-02-10 22:27:55,197 INFO L226 Difference]: Without dead ends: 7990 [2022-02-10 22:27:55,198 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:55,198 INFO L934 BasicCegarLoop]: 284 mSDtfsCounter, 245 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:55,198 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 2282 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:55,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7990 states. [2022-02-10 22:27:55,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7990 to 7391. [2022-02-10 22:27:55,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7391 states, 7390 states have (on average 2.6451962110960756) internal successors, (19548), 7390 states have internal predecessors, (19548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:55,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 19548 transitions. [2022-02-10 22:27:55,287 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 19548 transitions. Word has length 109 [2022-02-10 22:27:55,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:55,287 INFO L470 AbstractCegarLoop]: Abstraction has 7391 states and 19548 transitions. [2022-02-10 22:27:55,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:55,288 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 19548 transitions. [2022-02-10 22:27:55,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:55,295 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:55,295 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:55,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable432 [2022-02-10 22:27:55,295 INFO L402 AbstractCegarLoop]: === Iteration 434 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:55,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:55,295 INFO L85 PathProgramCache]: Analyzing trace with hash 600678544, now seen corresponding path program 132 times [2022-02-10 22:27:55,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:55,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910229973] [2022-02-10 22:27:55,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:55,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:55,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:55,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:55,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910229973] [2022-02-10 22:27:55,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910229973] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:55,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:55,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:55,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720853867] [2022-02-10 22:27:55,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:55,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:55,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:55,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:55,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:55,416 INFO L87 Difference]: Start difference. First operand 7391 states and 19548 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:55,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:55,809 INFO L93 Difference]: Finished difference Result 8387 states and 22127 transitions. [2022-02-10 22:27:55,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:27:55,809 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:55,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:55,818 INFO L225 Difference]: With dead ends: 8387 [2022-02-10 22:27:55,818 INFO L226 Difference]: Without dead ends: 7869 [2022-02-10 22:27:55,819 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=934, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:27:55,819 INFO L934 BasicCegarLoop]: 273 mSDtfsCounter, 220 mSDsluCounter, 2897 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:55,819 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 3102 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:55,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7869 states. [2022-02-10 22:27:55,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7869 to 7349. [2022-02-10 22:27:55,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7349 states, 7348 states have (on average 2.647387044093631) internal successors, (19453), 7348 states have internal predecessors, (19453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:55,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7349 states to 7349 states and 19453 transitions. [2022-02-10 22:27:55,905 INFO L78 Accepts]: Start accepts. Automaton has 7349 states and 19453 transitions. Word has length 109 [2022-02-10 22:27:55,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:55,905 INFO L470 AbstractCegarLoop]: Abstraction has 7349 states and 19453 transitions. [2022-02-10 22:27:55,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:55,905 INFO L276 IsEmpty]: Start isEmpty. Operand 7349 states and 19453 transitions. [2022-02-10 22:27:55,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:55,912 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:55,913 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:55,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable433 [2022-02-10 22:27:55,913 INFO L402 AbstractCegarLoop]: === Iteration 435 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:55,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:55,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1160979608, now seen corresponding path program 133 times [2022-02-10 22:27:55,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:55,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577779942] [2022-02-10 22:27:55,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:55,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:56,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:56,026 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:56,026 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577779942] [2022-02-10 22:27:56,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577779942] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:56,026 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:56,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:56,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807638788] [2022-02-10 22:27:56,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:56,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:56,026 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:56,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:56,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:56,027 INFO L87 Difference]: Start difference. First operand 7349 states and 19453 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:56,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:56,474 INFO L93 Difference]: Finished difference Result 8579 states and 22667 transitions. [2022-02-10 22:27:56,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:27:56,475 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:56,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:56,484 INFO L225 Difference]: With dead ends: 8579 [2022-02-10 22:27:56,484 INFO L226 Difference]: Without dead ends: 8100 [2022-02-10 22:27:56,485 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=312, Invalid=1020, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:27:56,485 INFO L934 BasicCegarLoop]: 271 mSDtfsCounter, 246 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:56,485 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2205 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:56,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8100 states. [2022-02-10 22:27:56,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8100 to 7369. [2022-02-10 22:27:56,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6471226927252984) internal successors, (19504), 7368 states have internal predecessors, (19504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:56,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19504 transitions. [2022-02-10 22:27:56,573 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19504 transitions. Word has length 109 [2022-02-10 22:27:56,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:56,573 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19504 transitions. [2022-02-10 22:27:56,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:56,573 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19504 transitions. [2022-02-10 22:27:56,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:56,580 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:56,581 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:56,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434 [2022-02-10 22:27:56,581 INFO L402 AbstractCegarLoop]: === Iteration 436 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:56,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:56,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1506464570, now seen corresponding path program 134 times [2022-02-10 22:27:56,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:56,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181212115] [2022-02-10 22:27:56,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:56,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:56,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:56,693 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:56,693 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181212115] [2022-02-10 22:27:56,693 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181212115] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:56,693 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:56,693 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:56,693 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435080245] [2022-02-10 22:27:56,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:56,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:56,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:56,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:56,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:56,694 INFO L87 Difference]: Start difference. First operand 7369 states and 19504 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:57,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:57,186 INFO L93 Difference]: Finished difference Result 8537 states and 22556 transitions. [2022-02-10 22:27:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:57,186 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:57,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:57,197 INFO L225 Difference]: With dead ends: 8537 [2022-02-10 22:27:57,197 INFO L226 Difference]: Without dead ends: 8057 [2022-02-10 22:27:57,198 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=389, Invalid=1171, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:27:57,198 INFO L934 BasicCegarLoop]: 272 mSDtfsCounter, 227 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:57,198 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2843 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:57,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8057 states. [2022-02-10 22:27:57,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8057 to 7365. [2022-02-10 22:27:57,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6470668115154807) internal successors, (19493), 7364 states have internal predecessors, (19493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:57,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19493 transitions. [2022-02-10 22:27:57,331 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19493 transitions. Word has length 109 [2022-02-10 22:27:57,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:57,331 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19493 transitions. [2022-02-10 22:27:57,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:57,331 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19493 transitions. [2022-02-10 22:27:57,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:57,338 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:57,338 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:57,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable435 [2022-02-10 22:27:57,338 INFO L402 AbstractCegarLoop]: === Iteration 437 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:57,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:57,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1667445386, now seen corresponding path program 135 times [2022-02-10 22:27:57,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:57,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699181731] [2022-02-10 22:27:57,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:57,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:57,446 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:57,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699181731] [2022-02-10 22:27:57,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699181731] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:57,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:57,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:57,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67786076] [2022-02-10 22:27:57,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:57,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:57,447 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:57,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:57,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:57,447 INFO L87 Difference]: Start difference. First operand 7365 states and 19493 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:57,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:57,922 INFO L93 Difference]: Finished difference Result 8625 states and 22778 transitions. [2022-02-10 22:27:57,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:27:57,922 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:57,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:57,931 INFO L225 Difference]: With dead ends: 8625 [2022-02-10 22:27:57,931 INFO L226 Difference]: Without dead ends: 8105 [2022-02-10 22:27:57,932 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=500, Invalid=1392, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:27:57,932 INFO L934 BasicCegarLoop]: 272 mSDtfsCounter, 306 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:57,932 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 2083 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:57,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8105 states. [2022-02-10 22:27:57,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8105 to 7361. [2022-02-10 22:27:58,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7360 states have (on average 2.6470108695652175) internal successors, (19482), 7360 states have internal predecessors, (19482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:58,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19482 transitions. [2022-02-10 22:27:58,015 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19482 transitions. Word has length 109 [2022-02-10 22:27:58,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:58,015 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 19482 transitions. [2022-02-10 22:27:58,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:58,015 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19482 transitions. [2022-02-10 22:27:58,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:58,022 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:58,022 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:58,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable436 [2022-02-10 22:27:58,022 INFO L402 AbstractCegarLoop]: === Iteration 438 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:58,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:58,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1740075110, now seen corresponding path program 136 times [2022-02-10 22:27:58,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:58,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131946904] [2022-02-10 22:27:58,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:58,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:58,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:58,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:58,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131946904] [2022-02-10 22:27:58,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131946904] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:58,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:58,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:58,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087968218] [2022-02-10 22:27:58,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:58,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:58,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:58,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:58,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:58,134 INFO L87 Difference]: Start difference. First operand 7361 states and 19482 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:58,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:58,690 INFO L93 Difference]: Finished difference Result 8739 states and 23078 transitions. [2022-02-10 22:27:58,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:27:58,690 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:58,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:58,699 INFO L225 Difference]: With dead ends: 8739 [2022-02-10 22:27:58,699 INFO L226 Difference]: Without dead ends: 8217 [2022-02-10 22:27:58,700 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=450, Invalid=1530, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:27:58,700 INFO L934 BasicCegarLoop]: 285 mSDtfsCounter, 333 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:58,700 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 2536 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:58,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8217 states. [2022-02-10 22:27:58,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8217 to 7365. [2022-02-10 22:27:58,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6465236284627918) internal successors, (19489), 7364 states have internal predecessors, (19489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:58,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19489 transitions. [2022-02-10 22:27:58,782 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19489 transitions. Word has length 109 [2022-02-10 22:27:58,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:58,783 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19489 transitions. [2022-02-10 22:27:58,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:58,783 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19489 transitions. [2022-02-10 22:27:58,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:58,789 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:58,789 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:58,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable437 [2022-02-10 22:27:58,789 INFO L402 AbstractCegarLoop]: === Iteration 439 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:58,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:58,790 INFO L85 PathProgramCache]: Analyzing trace with hash 182159760, now seen corresponding path program 137 times [2022-02-10 22:27:58,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:58,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729861996] [2022-02-10 22:27:58,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:58,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:58,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:58,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:58,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729861996] [2022-02-10 22:27:58,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729861996] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:58,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:58,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:58,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342760538] [2022-02-10 22:27:58,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:58,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:58,901 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:58,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:58,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:58,901 INFO L87 Difference]: Start difference. First operand 7365 states and 19489 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:59,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:59,402 INFO L93 Difference]: Finished difference Result 8575 states and 22648 transitions. [2022-02-10 22:27:59,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:27:59,402 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:27:59,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:59,415 INFO L225 Difference]: With dead ends: 8575 [2022-02-10 22:27:59,415 INFO L226 Difference]: Without dead ends: 8096 [2022-02-10 22:27:59,416 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:27:59,416 INFO L934 BasicCegarLoop]: 277 mSDtfsCounter, 253 mSDsluCounter, 2657 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:59,416 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 2873 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:27:59,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2022-02-10 22:27:59,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 7369. [2022-02-10 22:27:59,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6460369163952224) internal successors, (19496), 7368 states have internal predecessors, (19496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:59,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19496 transitions. [2022-02-10 22:27:59,540 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19496 transitions. Word has length 109 [2022-02-10 22:27:59,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:59,540 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19496 transitions. [2022-02-10 22:27:59,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:59,540 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19496 transitions. [2022-02-10 22:27:59,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:27:59,551 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:59,551 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:59,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable438 [2022-02-10 22:27:59,551 INFO L402 AbstractCegarLoop]: === Iteration 440 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:59,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:59,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1809682878, now seen corresponding path program 138 times [2022-02-10 22:27:59,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:59,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482115506] [2022-02-10 22:27:59,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:59,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:59,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:59,693 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:59,693 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482115506] [2022-02-10 22:27:59,693 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482115506] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:59,693 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:59,693 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:27:59,694 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687345616] [2022-02-10 22:27:59,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:59,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:27:59,694 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:59,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:27:59,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:27:59,694 INFO L87 Difference]: Start difference. First operand 7369 states and 19496 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:00,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:00,300 INFO L93 Difference]: Finished difference Result 8509 states and 22471 transitions. [2022-02-10 22:28:00,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:28:00,301 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:00,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:00,313 INFO L225 Difference]: With dead ends: 8509 [2022-02-10 22:28:00,314 INFO L226 Difference]: Without dead ends: 8021 [2022-02-10 22:28:00,314 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:28:00,314 INFO L934 BasicCegarLoop]: 270 mSDtfsCounter, 232 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:00,314 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 3027 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:28:00,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8021 states. [2022-02-10 22:28:00,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8021 to 7357. [2022-02-10 22:28:00,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7357 states, 7356 states have (on average 2.6469548667754212) internal successors, (19471), 7356 states have internal predecessors, (19471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:00,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7357 states to 7357 states and 19471 transitions. [2022-02-10 22:28:00,423 INFO L78 Accepts]: Start accepts. Automaton has 7357 states and 19471 transitions. Word has length 109 [2022-02-10 22:28:00,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:00,423 INFO L470 AbstractCegarLoop]: Abstraction has 7357 states and 19471 transitions. [2022-02-10 22:28:00,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:00,423 INFO L276 IsEmpty]: Start isEmpty. Operand 7357 states and 19471 transitions. [2022-02-10 22:28:00,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:00,430 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:00,430 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:00,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable439 [2022-02-10 22:28:00,430 INFO L402 AbstractCegarLoop]: === Iteration 441 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:00,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:00,430 INFO L85 PathProgramCache]: Analyzing trace with hash 527338778, now seen corresponding path program 139 times [2022-02-10 22:28:00,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:00,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757734952] [2022-02-10 22:28:00,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:00,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:00,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:00,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:00,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757734952] [2022-02-10 22:28:00,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757734952] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:00,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:00,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:00,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430689304] [2022-02-10 22:28:00,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:00,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:00,560 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:00,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:00,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:00,560 INFO L87 Difference]: Start difference. First operand 7357 states and 19471 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:01,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:01,439 INFO L93 Difference]: Finished difference Result 8872 states and 23425 transitions. [2022-02-10 22:28:01,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:28:01,439 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:01,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:01,452 INFO L225 Difference]: With dead ends: 8872 [2022-02-10 22:28:01,452 INFO L226 Difference]: Without dead ends: 8307 [2022-02-10 22:28:01,453 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:28:01,453 INFO L934 BasicCegarLoop]: 294 mSDtfsCounter, 401 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:01,453 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 2849 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:28:01,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8307 states. [2022-02-10 22:28:01,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8307 to 7361. [2022-02-10 22:28:01,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7360 states have (on average 2.646467391304348) internal successors, (19478), 7360 states have internal predecessors, (19478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:01,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19478 transitions. [2022-02-10 22:28:01,573 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19478 transitions. Word has length 109 [2022-02-10 22:28:01,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:01,574 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 19478 transitions. [2022-02-10 22:28:01,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:01,574 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19478 transitions. [2022-02-10 22:28:01,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:01,584 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:01,584 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:01,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440 [2022-02-10 22:28:01,584 INFO L402 AbstractCegarLoop]: === Iteration 442 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:01,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:01,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1391769840, now seen corresponding path program 140 times [2022-02-10 22:28:01,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:01,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389414366] [2022-02-10 22:28:01,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:01,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:01,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:01,733 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:01,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389414366] [2022-02-10 22:28:01,733 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389414366] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:01,733 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:01,733 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:01,733 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940048393] [2022-02-10 22:28:01,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:01,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:01,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:01,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:01,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:01,734 INFO L87 Difference]: Start difference. First operand 7361 states and 19478 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:02,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:02,448 INFO L93 Difference]: Finished difference Result 8747 states and 23096 transitions. [2022-02-10 22:28:02,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:28:02,448 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:02,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:02,461 INFO L225 Difference]: With dead ends: 8747 [2022-02-10 22:28:02,461 INFO L226 Difference]: Without dead ends: 8225 [2022-02-10 22:28:02,461 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=462, Invalid=1608, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:28:02,461 INFO L934 BasicCegarLoop]: 286 mSDtfsCounter, 331 mSDsluCounter, 2318 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:02,461 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2543 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:28:02,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8225 states. [2022-02-10 22:28:02,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8225 to 7365. [2022-02-10 22:28:02,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6459804454101032) internal successors, (19485), 7364 states have internal predecessors, (19485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:02,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19485 transitions. [2022-02-10 22:28:02,580 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19485 transitions. Word has length 109 [2022-02-10 22:28:02,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:02,580 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19485 transitions. [2022-02-10 22:28:02,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:02,580 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19485 transitions. [2022-02-10 22:28:02,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:02,589 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:02,589 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:02,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable441 [2022-02-10 22:28:02,589 INFO L402 AbstractCegarLoop]: === Iteration 443 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:02,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:02,589 INFO L85 PathProgramCache]: Analyzing trace with hash -166145510, now seen corresponding path program 141 times [2022-02-10 22:28:02,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:02,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210098984] [2022-02-10 22:28:02,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:02,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:02,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:02,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:02,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210098984] [2022-02-10 22:28:02,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210098984] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:02,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:02,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:02,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918130165] [2022-02-10 22:28:02,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:02,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:02,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:02,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:02,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:02,730 INFO L87 Difference]: Start difference. First operand 7365 states and 19485 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:03,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:03,191 INFO L93 Difference]: Finished difference Result 8583 states and 22666 transitions. [2022-02-10 22:28:03,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:03,191 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:03,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:03,201 INFO L225 Difference]: With dead ends: 8583 [2022-02-10 22:28:03,201 INFO L226 Difference]: Without dead ends: 8104 [2022-02-10 22:28:03,201 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:28:03,201 INFO L934 BasicCegarLoop]: 274 mSDtfsCounter, 255 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 2221 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:03,201 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 2221 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:03,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8104 states. [2022-02-10 22:28:03,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8104 to 7369. [2022-02-10 22:28:03,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6454940282301846) internal successors, (19492), 7368 states have internal predecessors, (19492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:03,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19492 transitions. [2022-02-10 22:28:03,284 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19492 transitions. Word has length 109 [2022-02-10 22:28:03,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:03,284 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19492 transitions. [2022-02-10 22:28:03,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:03,285 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19492 transitions. [2022-02-10 22:28:03,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:03,291 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:03,291 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:03,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable442 [2022-02-10 22:28:03,291 INFO L402 AbstractCegarLoop]: === Iteration 444 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:03,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:03,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1461377608, now seen corresponding path program 142 times [2022-02-10 22:28:03,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:03,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657771424] [2022-02-10 22:28:03,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:03,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:03,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:03,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:03,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657771424] [2022-02-10 22:28:03,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657771424] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:03,403 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:03,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:03,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487199582] [2022-02-10 22:28:03,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:03,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:03,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:03,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:03,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:03,404 INFO L87 Difference]: Start difference. First operand 7369 states and 19492 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:03,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:03,842 INFO L93 Difference]: Finished difference Result 8509 states and 22467 transitions. [2022-02-10 22:28:03,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:28:03,842 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:03,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:03,851 INFO L225 Difference]: With dead ends: 8509 [2022-02-10 22:28:03,851 INFO L226 Difference]: Without dead ends: 8017 [2022-02-10 22:28:03,851 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:28:03,852 INFO L934 BasicCegarLoop]: 267 mSDtfsCounter, 233 mSDsluCounter, 2616 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:03,852 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2826 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:03,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2022-02-10 22:28:03,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 7353. [2022-02-10 22:28:03,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7353 states, 7352 states have (on average 2.64689880304679) internal successors, (19460), 7352 states have internal predecessors, (19460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:03,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7353 states to 7353 states and 19460 transitions. [2022-02-10 22:28:03,965 INFO L78 Accepts]: Start accepts. Automaton has 7353 states and 19460 transitions. Word has length 109 [2022-02-10 22:28:03,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:03,965 INFO L470 AbstractCegarLoop]: Abstraction has 7353 states and 19460 transitions. [2022-02-10 22:28:03,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:03,965 INFO L276 IsEmpty]: Start isEmpty. Operand 7353 states and 19460 transitions. [2022-02-10 22:28:03,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:03,972 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:03,972 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:03,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable443 [2022-02-10 22:28:03,972 INFO L402 AbstractCegarLoop]: === Iteration 445 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:03,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:03,973 INFO L85 PathProgramCache]: Analyzing trace with hash 879815300, now seen corresponding path program 143 times [2022-02-10 22:28:03,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:03,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123763388] [2022-02-10 22:28:03,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:03,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:04,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:04,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:04,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123763388] [2022-02-10 22:28:04,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123763388] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:04,085 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:04,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:04,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623765586] [2022-02-10 22:28:04,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:04,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:04,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:04,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:04,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:04,086 INFO L87 Difference]: Start difference. First operand 7353 states and 19460 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:04,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:04,949 INFO L93 Difference]: Finished difference Result 8861 states and 23376 transitions. [2022-02-10 22:28:04,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-10 22:28:04,949 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:04,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:04,959 INFO L225 Difference]: With dead ends: 8861 [2022-02-10 22:28:04,959 INFO L226 Difference]: Without dead ends: 8253 [2022-02-10 22:28:04,960 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:28:04,960 INFO L934 BasicCegarLoop]: 295 mSDtfsCounter, 476 mSDsluCounter, 3078 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 3286 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:04,960 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 3286 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:28:04,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8253 states. [2022-02-10 22:28:05,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8253 to 7357. [2022-02-10 22:28:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7357 states, 7356 states have (on average 2.646411092985318) internal successors, (19467), 7356 states have internal predecessors, (19467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:05,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7357 states to 7357 states and 19467 transitions. [2022-02-10 22:28:05,049 INFO L78 Accepts]: Start accepts. Automaton has 7357 states and 19467 transitions. Word has length 109 [2022-02-10 22:28:05,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:05,049 INFO L470 AbstractCegarLoop]: Abstraction has 7357 states and 19467 transitions. [2022-02-10 22:28:05,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:05,049 INFO L276 IsEmpty]: Start isEmpty. Operand 7357 states and 19467 transitions. [2022-02-10 22:28:05,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:05,056 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:05,056 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:05,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable444 [2022-02-10 22:28:05,056 INFO L402 AbstractCegarLoop]: === Iteration 446 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:05,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:05,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1390656440, now seen corresponding path program 144 times [2022-02-10 22:28:05,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:05,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43903361] [2022-02-10 22:28:05,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:05,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:05,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:05,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:05,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43903361] [2022-02-10 22:28:05,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43903361] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:05,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:05,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:05,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048730685] [2022-02-10 22:28:05,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:05,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:05,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:05,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:05,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:05,174 INFO L87 Difference]: Start difference. First operand 7357 states and 19467 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:05,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:05,956 INFO L93 Difference]: Finished difference Result 8744 states and 23069 transitions. [2022-02-10 22:28:05,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:28:05,956 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:05,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:05,965 INFO L225 Difference]: With dead ends: 8744 [2022-02-10 22:28:05,965 INFO L226 Difference]: Without dead ends: 8179 [2022-02-10 22:28:05,966 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=634, Invalid=2228, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:28:05,966 INFO L934 BasicCegarLoop]: 295 mSDtfsCounter, 394 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:05,966 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 2790 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:05,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8179 states. [2022-02-10 22:28:06,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8179 to 7361. [2022-02-10 22:28:06,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7360 states have (on average 2.6459239130434784) internal successors, (19474), 7360 states have internal predecessors, (19474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:06,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19474 transitions. [2022-02-10 22:28:06,048 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19474 transitions. Word has length 109 [2022-02-10 22:28:06,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:06,048 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 19474 transitions. [2022-02-10 22:28:06,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:06,049 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19474 transitions. [2022-02-10 22:28:06,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:06,056 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:06,056 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:06,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445 [2022-02-10 22:28:06,056 INFO L402 AbstractCegarLoop]: === Iteration 447 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:06,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:06,056 INFO L85 PathProgramCache]: Analyzing trace with hash -526225378, now seen corresponding path program 145 times [2022-02-10 22:28:06,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:06,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701158224] [2022-02-10 22:28:06,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:06,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:06,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:06,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:06,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701158224] [2022-02-10 22:28:06,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701158224] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:06,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:06,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:06,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799184256] [2022-02-10 22:28:06,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:06,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:06,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:06,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:06,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:06,195 INFO L87 Difference]: Start difference. First operand 7361 states and 19474 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:06,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:06,776 INFO L93 Difference]: Finished difference Result 8627 states and 22762 transitions. [2022-02-10 22:28:06,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:28:06,777 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:06,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:06,786 INFO L225 Difference]: With dead ends: 8627 [2022-02-10 22:28:06,786 INFO L226 Difference]: Without dead ends: 8105 [2022-02-10 22:28:06,786 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=451, Invalid=1619, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:28:06,786 INFO L934 BasicCegarLoop]: 283 mSDtfsCounter, 322 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:06,786 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 2705 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:06,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8105 states. [2022-02-10 22:28:06,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8105 to 7365. [2022-02-10 22:28:06,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6454372623574143) internal successors, (19481), 7364 states have internal predecessors, (19481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:06,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19481 transitions. [2022-02-10 22:28:06,872 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19481 transitions. Word has length 109 [2022-02-10 22:28:06,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:06,872 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19481 transitions. [2022-02-10 22:28:06,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:06,873 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19481 transitions. [2022-02-10 22:28:06,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:06,883 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:06,883 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:06,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable446 [2022-02-10 22:28:06,883 INFO L402 AbstractCegarLoop]: === Iteration 448 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:06,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:06,884 INFO L85 PathProgramCache]: Analyzing trace with hash -2084140728, now seen corresponding path program 146 times [2022-02-10 22:28:06,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:06,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51710116] [2022-02-10 22:28:06,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:06,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:07,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:07,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:07,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51710116] [2022-02-10 22:28:07,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51710116] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:07,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:07,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:07,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235850382] [2022-02-10 22:28:07,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:07,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:07,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:07,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:07,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:07,028 INFO L87 Difference]: Start difference. First operand 7365 states and 19481 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:07,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:07,579 INFO L93 Difference]: Finished difference Result 8479 states and 22376 transitions. [2022-02-10 22:28:07,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:07,580 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:07,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:07,592 INFO L225 Difference]: With dead ends: 8479 [2022-02-10 22:28:07,593 INFO L226 Difference]: Without dead ends: 8000 [2022-02-10 22:28:07,593 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=318, Invalid=1088, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:28:07,593 INFO L934 BasicCegarLoop]: 271 mSDtfsCounter, 251 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:07,593 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 2405 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:07,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8000 states. [2022-02-10 22:28:07,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8000 to 7369. [2022-02-10 22:28:07,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6449511400651464) internal successors, (19488), 7368 states have internal predecessors, (19488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:07,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19488 transitions. [2022-02-10 22:28:07,723 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19488 transitions. Word has length 109 [2022-02-10 22:28:07,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:07,723 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19488 transitions. [2022-02-10 22:28:07,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:07,724 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19488 transitions. [2022-02-10 22:28:07,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:07,735 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:07,735 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:07,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable447 [2022-02-10 22:28:07,736 INFO L402 AbstractCegarLoop]: === Iteration 449 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:07,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:07,736 INFO L85 PathProgramCache]: Analyzing trace with hash -456617610, now seen corresponding path program 147 times [2022-02-10 22:28:07,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:07,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678515874] [2022-02-10 22:28:07,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:07,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:07,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:07,877 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:07,877 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678515874] [2022-02-10 22:28:07,877 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678515874] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:07,877 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:07,877 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:07,877 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671609098] [2022-02-10 22:28:07,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:07,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:07,877 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:07,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:07,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:07,878 INFO L87 Difference]: Start difference. First operand 7369 states and 19488 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:08,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:08,276 INFO L93 Difference]: Finished difference Result 8365 states and 22067 transitions. [2022-02-10 22:28:08,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:28:08,276 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:08,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:08,285 INFO L225 Difference]: With dead ends: 8365 [2022-02-10 22:28:08,285 INFO L226 Difference]: Without dead ends: 7843 [2022-02-10 22:28:08,285 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=332, Invalid=928, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:28:08,286 INFO L934 BasicCegarLoop]: 264 mSDtfsCounter, 220 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:08,286 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2346 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:08,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7843 states. [2022-02-10 22:28:08,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7843 to 7323. [2022-02-10 22:28:08,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7323 states, 7322 states have (on average 2.647637257579896) internal successors, (19386), 7322 states have internal predecessors, (19386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:08,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7323 states to 7323 states and 19386 transitions. [2022-02-10 22:28:08,368 INFO L78 Accepts]: Start accepts. Automaton has 7323 states and 19386 transitions. Word has length 109 [2022-02-10 22:28:08,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:08,368 INFO L470 AbstractCegarLoop]: Abstraction has 7323 states and 19386 transitions. [2022-02-10 22:28:08,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:08,369 INFO L276 IsEmpty]: Start isEmpty. Operand 7323 states and 19386 transitions. [2022-02-10 22:28:08,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:08,375 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:08,375 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:08,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable448 [2022-02-10 22:28:08,375 INFO L402 AbstractCegarLoop]: === Iteration 450 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:08,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:08,376 INFO L85 PathProgramCache]: Analyzing trace with hash -993153118, now seen corresponding path program 148 times [2022-02-10 22:28:08,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:08,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057988923] [2022-02-10 22:28:08,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:08,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:08,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:08,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:08,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057988923] [2022-02-10 22:28:08,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057988923] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:08,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:08,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:08,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494941999] [2022-02-10 22:28:08,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:08,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:08,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:08,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:08,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:08,489 INFO L87 Difference]: Start difference. First operand 7323 states and 19386 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:08,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:08,879 INFO L93 Difference]: Finished difference Result 8633 states and 22820 transitions. [2022-02-10 22:28:08,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:28:08,879 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:08,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:08,888 INFO L225 Difference]: With dead ends: 8633 [2022-02-10 22:28:08,888 INFO L226 Difference]: Without dead ends: 8154 [2022-02-10 22:28:08,889 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:28:08,889 INFO L934 BasicCegarLoop]: 254 mSDtfsCounter, 229 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:08,889 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 1949 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:08,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8154 states. [2022-02-10 22:28:08,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8154 to 7347. [2022-02-10 22:28:08,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6474271712496598) internal successors, (19448), 7346 states have internal predecessors, (19448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:08,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19448 transitions. [2022-02-10 22:28:08,973 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19448 transitions. Word has length 109 [2022-02-10 22:28:08,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:08,973 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19448 transitions. [2022-02-10 22:28:08,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:08,973 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19448 transitions. [2022-02-10 22:28:08,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:08,980 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:08,980 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:08,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449 [2022-02-10 22:28:08,980 INFO L402 AbstractCegarLoop]: === Iteration 451 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:08,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:08,980 INFO L85 PathProgramCache]: Analyzing trace with hash 634370000, now seen corresponding path program 149 times [2022-02-10 22:28:08,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:08,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285694202] [2022-02-10 22:28:08,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:08,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:09,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:09,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:09,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285694202] [2022-02-10 22:28:09,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285694202] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:09,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:09,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:09,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751631747] [2022-02-10 22:28:09,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:09,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:09,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:09,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:09,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:09,095 INFO L87 Difference]: Start difference. First operand 7347 states and 19448 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:09,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:09,566 INFO L93 Difference]: Finished difference Result 8599 states and 22731 transitions. [2022-02-10 22:28:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:09,567 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:09,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:09,576 INFO L225 Difference]: With dead ends: 8599 [2022-02-10 22:28:09,576 INFO L226 Difference]: Without dead ends: 8119 [2022-02-10 22:28:09,577 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:28:09,577 INFO L934 BasicCegarLoop]: 256 mSDtfsCounter, 210 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 2727 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:09,577 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 2727 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:09,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8119 states. [2022-02-10 22:28:09,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8119 to 7343. [2022-02-10 22:28:09,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6473712884772542) internal successors, (19437), 7342 states have internal predecessors, (19437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:09,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19437 transitions. [2022-02-10 22:28:09,662 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19437 transitions. Word has length 109 [2022-02-10 22:28:09,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:09,662 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19437 transitions. [2022-02-10 22:28:09,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:09,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19437 transitions. [2022-02-10 22:28:09,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:09,669 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:09,669 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:09,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450 [2022-02-10 22:28:09,669 INFO L402 AbstractCegarLoop]: === Iteration 452 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:09,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:09,670 INFO L85 PathProgramCache]: Analyzing trace with hash -486687340, now seen corresponding path program 150 times [2022-02-10 22:28:09,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:09,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645411998] [2022-02-10 22:28:09,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:09,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:09,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:09,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:09,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645411998] [2022-02-10 22:28:09,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645411998] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:09,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:09,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:09,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569388887] [2022-02-10 22:28:09,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:09,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:09,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:09,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:09,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:09,781 INFO L87 Difference]: Start difference. First operand 7343 states and 19437 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:10,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:10,372 INFO L93 Difference]: Finished difference Result 8635 states and 22826 transitions. [2022-02-10 22:28:10,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:28:10,372 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:10,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:10,382 INFO L225 Difference]: With dead ends: 8635 [2022-02-10 22:28:10,382 INFO L226 Difference]: Without dead ends: 8115 [2022-02-10 22:28:10,382 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=545, Invalid=1711, Unknown=0, NotChecked=0, Total=2256 [2022-02-10 22:28:10,382 INFO L934 BasicCegarLoop]: 265 mSDtfsCounter, 284 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:10,382 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 2315 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:10,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2022-02-10 22:28:10,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 7339. [2022-02-10 22:28:10,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.647315344780594) internal successors, (19426), 7338 states have internal predecessors, (19426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:10,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19426 transitions. [2022-02-10 22:28:10,470 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19426 transitions. Word has length 109 [2022-02-10 22:28:10,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:10,471 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19426 transitions. [2022-02-10 22:28:10,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:10,471 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19426 transitions. [2022-02-10 22:28:10,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:10,478 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:10,478 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:10,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable451 [2022-02-10 22:28:10,478 INFO L402 AbstractCegarLoop]: === Iteration 453 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:10,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:10,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1011822876, now seen corresponding path program 151 times [2022-02-10 22:28:10,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:10,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948649489] [2022-02-10 22:28:10,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:10,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:10,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:10,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:10,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948649489] [2022-02-10 22:28:10,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948649489] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:10,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:10,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:10,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930650911] [2022-02-10 22:28:10,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:10,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:10,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:10,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:10,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:10,589 INFO L87 Difference]: Start difference. First operand 7339 states and 19426 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:11,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:11,205 INFO L93 Difference]: Finished difference Result 8751 states and 23117 transitions. [2022-02-10 22:28:11,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 22:28:11,206 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:11,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:11,215 INFO L225 Difference]: With dead ends: 8751 [2022-02-10 22:28:11,215 INFO L226 Difference]: Without dead ends: 8191 [2022-02-10 22:28:11,216 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=684, Invalid=1968, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:28:11,216 INFO L934 BasicCegarLoop]: 265 mSDtfsCounter, 336 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 2796 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:11,216 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 2796 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:11,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8191 states. [2022-02-10 22:28:11,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8191 to 7335. [2022-02-10 22:28:11,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6472593400599944) internal successors, (19415), 7334 states have internal predecessors, (19415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:11,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19415 transitions. [2022-02-10 22:28:11,299 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19415 transitions. Word has length 109 [2022-02-10 22:28:11,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:11,299 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19415 transitions. [2022-02-10 22:28:11,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:11,299 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19415 transitions. [2022-02-10 22:28:11,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:11,306 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:11,306 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:11,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable452 [2022-02-10 22:28:11,306 INFO L402 AbstractCegarLoop]: === Iteration 454 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:11,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:11,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1202136280, now seen corresponding path program 152 times [2022-02-10 22:28:11,307 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:11,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561336499] [2022-02-10 22:28:11,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:11,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:11,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:11,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:11,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561336499] [2022-02-10 22:28:11,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561336499] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:11,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:11,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:11,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000455429] [2022-02-10 22:28:11,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:11,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:11,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:11,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:11,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:11,423 INFO L87 Difference]: Start difference. First operand 7335 states and 19415 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:11,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:11,844 INFO L93 Difference]: Finished difference Result 8701 states and 23003 transitions. [2022-02-10 22:28:11,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:28:11,844 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:11,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:11,856 INFO L225 Difference]: With dead ends: 8701 [2022-02-10 22:28:11,856 INFO L226 Difference]: Without dead ends: 8222 [2022-02-10 22:28:11,857 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:28:11,857 INFO L934 BasicCegarLoop]: 259 mSDtfsCounter, 241 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:11,857 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 2321 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:11,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8222 states. [2022-02-10 22:28:11,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8222 to 7347. [2022-02-10 22:28:11,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6468826572284234) internal successors, (19444), 7346 states have internal predecessors, (19444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:11,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19444 transitions. [2022-02-10 22:28:11,947 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19444 transitions. Word has length 109 [2022-02-10 22:28:11,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:11,947 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19444 transitions. [2022-02-10 22:28:11,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:11,947 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19444 transitions. [2022-02-10 22:28:11,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:11,957 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:11,957 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:11,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable453 [2022-02-10 22:28:11,957 INFO L402 AbstractCegarLoop]: === Iteration 455 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:11,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:11,957 INFO L85 PathProgramCache]: Analyzing trace with hash 425386838, now seen corresponding path program 153 times [2022-02-10 22:28:11,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:11,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762109064] [2022-02-10 22:28:11,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:11,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:12,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:12,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762109064] [2022-02-10 22:28:12,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762109064] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:12,093 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:12,093 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:12,093 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697175086] [2022-02-10 22:28:12,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:12,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:12,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:12,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:12,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:12,093 INFO L87 Difference]: Start difference. First operand 7347 states and 19444 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:12,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:12,628 INFO L93 Difference]: Finished difference Result 8659 states and 22892 transitions. [2022-02-10 22:28:12,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:12,629 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:12,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:12,638 INFO L225 Difference]: With dead ends: 8659 [2022-02-10 22:28:12,638 INFO L226 Difference]: Without dead ends: 8179 [2022-02-10 22:28:12,638 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=370, Invalid=1112, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:28:12,638 INFO L934 BasicCegarLoop]: 260 mSDtfsCounter, 227 mSDsluCounter, 2371 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:12,638 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2584 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:28:12,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8179 states. [2022-02-10 22:28:12,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8179 to 7343. [2022-02-10 22:28:12,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6468264777989647) internal successors, (19433), 7342 states have internal predecessors, (19433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:12,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19433 transitions. [2022-02-10 22:28:12,757 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19433 transitions. Word has length 109 [2022-02-10 22:28:12,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:12,757 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19433 transitions. [2022-02-10 22:28:12,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19433 transitions. [2022-02-10 22:28:12,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:12,766 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:12,766 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:12,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable454 [2022-02-10 22:28:12,766 INFO L402 AbstractCegarLoop]: === Iteration 456 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:12,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:12,767 INFO L85 PathProgramCache]: Analyzing trace with hash -695670502, now seen corresponding path program 154 times [2022-02-10 22:28:12,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:12,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856405394] [2022-02-10 22:28:12,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:12,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:12,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:12,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:12,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856405394] [2022-02-10 22:28:12,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856405394] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:12,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:12,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:12,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055339922] [2022-02-10 22:28:12,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:12,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:12,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:12,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:12,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:12,911 INFO L87 Difference]: Start difference. First operand 7343 states and 19433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:13,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:13,536 INFO L93 Difference]: Finished difference Result 8787 states and 23224 transitions. [2022-02-10 22:28:13,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:28:13,536 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:13,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:13,547 INFO L225 Difference]: With dead ends: 8787 [2022-02-10 22:28:13,547 INFO L226 Difference]: Without dead ends: 8267 [2022-02-10 22:28:13,548 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=531, Invalid=1631, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:28:13,548 INFO L934 BasicCegarLoop]: 264 mSDtfsCounter, 298 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:13,548 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 2631 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:13,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2022-02-10 22:28:13,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 7339. [2022-02-10 22:28:13,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6467702371218316) internal successors, (19422), 7338 states have internal predecessors, (19422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:13,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19422 transitions. [2022-02-10 22:28:13,646 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19422 transitions. Word has length 109 [2022-02-10 22:28:13,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:13,646 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19422 transitions. [2022-02-10 22:28:13,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:13,647 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19422 transitions. [2022-02-10 22:28:13,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:13,654 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:13,654 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:13,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable455 [2022-02-10 22:28:13,654 INFO L402 AbstractCegarLoop]: === Iteration 457 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:13,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:13,655 INFO L85 PathProgramCache]: Analyzing trace with hash -623040778, now seen corresponding path program 155 times [2022-02-10 22:28:13,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:13,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330310972] [2022-02-10 22:28:13,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:13,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:13,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:13,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:13,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330310972] [2022-02-10 22:28:13,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330310972] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:13,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:13,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:13,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547984215] [2022-02-10 22:28:13,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:13,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:13,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:13,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:13,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:13,772 INFO L87 Difference]: Start difference. First operand 7339 states and 19422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:14,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:14,317 INFO L93 Difference]: Finished difference Result 8789 states and 23216 transitions. [2022-02-10 22:28:14,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:28:14,318 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:14,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:14,332 INFO L225 Difference]: With dead ends: 8789 [2022-02-10 22:28:14,332 INFO L226 Difference]: Without dead ends: 8267 [2022-02-10 22:28:14,333 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1434, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:28:14,333 INFO L934 BasicCegarLoop]: 269 mSDtfsCounter, 300 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:14,333 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 2396 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:14,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2022-02-10 22:28:14,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 7343. [2022-02-10 22:28:14,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6462816671206757) internal successors, (19429), 7342 states have internal predecessors, (19429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:14,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19429 transitions. [2022-02-10 22:28:14,467 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19429 transitions. Word has length 109 [2022-02-10 22:28:14,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:14,468 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19429 transitions. [2022-02-10 22:28:14,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:14,468 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19429 transitions. [2022-02-10 22:28:14,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:14,478 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:14,478 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:14,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable456 [2022-02-10 22:28:14,478 INFO L402 AbstractCegarLoop]: === Iteration 458 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:14,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:14,479 INFO L85 PathProgramCache]: Analyzing trace with hash 2114011168, now seen corresponding path program 156 times [2022-02-10 22:28:14,479 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:14,479 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847867869] [2022-02-10 22:28:14,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:14,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:14,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:14,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:14,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847867869] [2022-02-10 22:28:14,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847867869] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:14,631 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:14,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:14,631 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574820353] [2022-02-10 22:28:14,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:14,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:14,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:14,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:14,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:14,632 INFO L87 Difference]: Start difference. First operand 7343 states and 19429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:15,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:15,137 INFO L93 Difference]: Finished difference Result 8641 states and 22830 transitions. [2022-02-10 22:28:15,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:15,137 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:15,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:15,146 INFO L225 Difference]: With dead ends: 8641 [2022-02-10 22:28:15,146 INFO L226 Difference]: Without dead ends: 8162 [2022-02-10 22:28:15,146 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:28:15,146 INFO L934 BasicCegarLoop]: 262 mSDtfsCounter, 233 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:15,146 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2377 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:15,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8162 states. [2022-02-10 22:28:15,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8162 to 7347. [2022-02-10 22:28:15,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6457936291859516) internal successors, (19436), 7346 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:15,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19436 transitions. [2022-02-10 22:28:15,228 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19436 transitions. Word has length 109 [2022-02-10 22:28:15,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:15,229 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19436 transitions. [2022-02-10 22:28:15,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:15,229 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19436 transitions. [2022-02-10 22:28:15,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:15,235 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:15,235 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:15,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable457 [2022-02-10 22:28:15,236 INFO L402 AbstractCegarLoop]: === Iteration 459 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:15,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:15,236 INFO L85 PathProgramCache]: Analyzing trace with hash -553433010, now seen corresponding path program 157 times [2022-02-10 22:28:15,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:15,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659722551] [2022-02-10 22:28:15,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:15,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:15,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:15,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659722551] [2022-02-10 22:28:15,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659722551] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:15,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:15,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:15,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678867920] [2022-02-10 22:28:15,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:15,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:15,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:15,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:15,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:15,351 INFO L87 Difference]: Start difference. First operand 7347 states and 19436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:15,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:15,780 INFO L93 Difference]: Finished difference Result 8559 states and 22609 transitions. [2022-02-10 22:28:15,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:28:15,781 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:15,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:15,790 INFO L225 Difference]: With dead ends: 8559 [2022-02-10 22:28:15,790 INFO L226 Difference]: Without dead ends: 8067 [2022-02-10 22:28:15,791 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=354, Invalid=1128, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:28:15,791 INFO L934 BasicCegarLoop]: 257 mSDtfsCounter, 219 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2395 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:15,791 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2395 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:15,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8067 states. [2022-02-10 22:28:15,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8067 to 7331. [2022-02-10 22:28:15,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7331 states, 7330 states have (on average 2.6472032742155527) internal successors, (19404), 7330 states have internal predecessors, (19404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:15,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7331 states to 7331 states and 19404 transitions. [2022-02-10 22:28:15,876 INFO L78 Accepts]: Start accepts. Automaton has 7331 states and 19404 transitions. Word has length 109 [2022-02-10 22:28:15,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:15,876 INFO L470 AbstractCegarLoop]: Abstraction has 7331 states and 19404 transitions. [2022-02-10 22:28:15,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:15,877 INFO L276 IsEmpty]: Start isEmpty. Operand 7331 states and 19404 transitions. [2022-02-10 22:28:15,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:15,883 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:15,883 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:15,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable458 [2022-02-10 22:28:15,884 INFO L402 AbstractCegarLoop]: === Iteration 460 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:15,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:15,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1250172384, now seen corresponding path program 158 times [2022-02-10 22:28:15,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:15,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568220165] [2022-02-10 22:28:15,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:15,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:16,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:16,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:16,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568220165] [2022-02-10 22:28:16,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568220165] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:16,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:16,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:16,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777541751] [2022-02-10 22:28:16,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:16,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:16,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:16,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:16,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:16,001 INFO L87 Difference]: Start difference. First operand 7331 states and 19404 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:16,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:16,459 INFO L93 Difference]: Finished difference Result 8737 states and 23102 transitions. [2022-02-10 22:28:16,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:28:16,463 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:16,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:16,475 INFO L225 Difference]: With dead ends: 8737 [2022-02-10 22:28:16,475 INFO L226 Difference]: Without dead ends: 8258 [2022-02-10 22:28:16,476 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:28:16,476 INFO L934 BasicCegarLoop]: 258 mSDtfsCounter, 249 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:16,476 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 2577 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:16,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8258 states. [2022-02-10 22:28:16,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8258 to 7347. [2022-02-10 22:28:16,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6468826572284234) internal successors, (19444), 7346 states have internal predecessors, (19444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:16,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19444 transitions. [2022-02-10 22:28:16,580 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19444 transitions. Word has length 109 [2022-02-10 22:28:16,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:16,580 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19444 transitions. [2022-02-10 22:28:16,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:16,580 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19444 transitions. [2022-02-10 22:28:16,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:16,591 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:16,607 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:16,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable459 [2022-02-10 22:28:16,607 INFO L402 AbstractCegarLoop]: === Iteration 461 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:16,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:16,608 INFO L85 PathProgramCache]: Analyzing trace with hash 377350734, now seen corresponding path program 159 times [2022-02-10 22:28:16,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:16,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226240638] [2022-02-10 22:28:16,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:16,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:16,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:16,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:16,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226240638] [2022-02-10 22:28:16,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226240638] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:16,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:16,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:16,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666731224] [2022-02-10 22:28:16,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:16,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:16,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:16,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:16,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:16,774 INFO L87 Difference]: Start difference. First operand 7347 states and 19444 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:17,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:17,332 INFO L93 Difference]: Finished difference Result 8695 states and 22991 transitions. [2022-02-10 22:28:17,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:17,332 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:17,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:17,342 INFO L225 Difference]: With dead ends: 8695 [2022-02-10 22:28:17,342 INFO L226 Difference]: Without dead ends: 8215 [2022-02-10 22:28:17,342 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:28:17,342 INFO L934 BasicCegarLoop]: 259 mSDtfsCounter, 231 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 2572 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:17,342 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 2572 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:17,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8215 states. [2022-02-10 22:28:17,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8215 to 7343. [2022-02-10 22:28:17,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6468264777989647) internal successors, (19433), 7342 states have internal predecessors, (19433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:17,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19433 transitions. [2022-02-10 22:28:17,434 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19433 transitions. Word has length 109 [2022-02-10 22:28:17,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:17,434 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19433 transitions. [2022-02-10 22:28:17,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:17,434 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19433 transitions. [2022-02-10 22:28:17,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:17,443 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:17,443 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:17,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable460 [2022-02-10 22:28:17,443 INFO L402 AbstractCegarLoop]: === Iteration 462 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:17,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:17,443 INFO L85 PathProgramCache]: Analyzing trace with hash -743706606, now seen corresponding path program 160 times [2022-02-10 22:28:17,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:17,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007113105] [2022-02-10 22:28:17,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:17,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:17,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:17,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:17,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007113105] [2022-02-10 22:28:17,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007113105] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:17,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:17,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:17,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22562157] [2022-02-10 22:28:17,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:17,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:17,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:17,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:17,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:17,568 INFO L87 Difference]: Start difference. First operand 7343 states and 19433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:18,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:18,202 INFO L93 Difference]: Finished difference Result 8803 states and 23268 transitions. [2022-02-10 22:28:18,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:28:18,203 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:18,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:18,213 INFO L225 Difference]: With dead ends: 8803 [2022-02-10 22:28:18,214 INFO L226 Difference]: Without dead ends: 8283 [2022-02-10 22:28:18,214 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=515, Invalid=1465, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:28:18,214 INFO L934 BasicCegarLoop]: 263 mSDtfsCounter, 292 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:18,214 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 2787 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:18,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2022-02-10 22:28:18,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 7339. [2022-02-10 22:28:18,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6467702371218316) internal successors, (19422), 7338 states have internal predecessors, (19422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:18,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19422 transitions. [2022-02-10 22:28:18,301 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19422 transitions. Word has length 109 [2022-02-10 22:28:18,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:18,301 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19422 transitions. [2022-02-10 22:28:18,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:18,302 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19422 transitions. [2022-02-10 22:28:18,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:18,308 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:18,308 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:18,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable461 [2022-02-10 22:28:18,309 INFO L402 AbstractCegarLoop]: === Iteration 463 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:18,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:18,309 INFO L85 PathProgramCache]: Analyzing trace with hash -671076882, now seen corresponding path program 161 times [2022-02-10 22:28:18,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:18,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834916010] [2022-02-10 22:28:18,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:18,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:18,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:18,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:18,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834916010] [2022-02-10 22:28:18,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834916010] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:18,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:18,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:18,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546450846] [2022-02-10 22:28:18,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:18,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:18,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:18,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:18,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:18,429 INFO L87 Difference]: Start difference. First operand 7339 states and 19422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:19,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:19,044 INFO L93 Difference]: Finished difference Result 8901 states and 23524 transitions. [2022-02-10 22:28:19,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:28:19,044 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:19,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:19,054 INFO L225 Difference]: With dead ends: 8901 [2022-02-10 22:28:19,054 INFO L226 Difference]: Without dead ends: 8379 [2022-02-10 22:28:19,054 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=469, Invalid=1511, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:28:19,054 INFO L934 BasicCegarLoop]: 271 mSDtfsCounter, 309 mSDsluCounter, 2665 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:19,054 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 2868 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:19,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8379 states. [2022-02-10 22:28:19,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8379 to 7343. [2022-02-10 22:28:19,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6462816671206757) internal successors, (19429), 7342 states have internal predecessors, (19429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:19,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19429 transitions. [2022-02-10 22:28:19,140 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19429 transitions. Word has length 109 [2022-02-10 22:28:19,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:19,140 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19429 transitions. [2022-02-10 22:28:19,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:19,140 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19429 transitions. [2022-02-10 22:28:19,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:19,147 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:19,147 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:19,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable462 [2022-02-10 22:28:19,147 INFO L402 AbstractCegarLoop]: === Iteration 464 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:19,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:19,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2065975064, now seen corresponding path program 162 times [2022-02-10 22:28:19,147 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:19,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967289501] [2022-02-10 22:28:19,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:19,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:19,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:19,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967289501] [2022-02-10 22:28:19,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967289501] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:19,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:19,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:19,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517805361] [2022-02-10 22:28:19,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:19,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:19,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:19,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:19,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:19,266 INFO L87 Difference]: Start difference. First operand 7343 states and 19429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:19,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:19,728 INFO L93 Difference]: Finished difference Result 8737 states and 23094 transitions. [2022-02-10 22:28:19,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:19,728 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:19,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:19,738 INFO L225 Difference]: With dead ends: 8737 [2022-02-10 22:28:19,738 INFO L226 Difference]: Without dead ends: 8258 [2022-02-10 22:28:19,738 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:28:19,738 INFO L934 BasicCegarLoop]: 263 mSDtfsCounter, 248 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:19,738 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 2602 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:19,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8258 states. [2022-02-10 22:28:19,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8258 to 7347. [2022-02-10 22:28:19,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6457936291859516) internal successors, (19436), 7346 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:19,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19436 transitions. [2022-02-10 22:28:19,840 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19436 transitions. Word has length 109 [2022-02-10 22:28:19,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:19,840 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19436 transitions. [2022-02-10 22:28:19,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:19,840 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19436 transitions. [2022-02-10 22:28:19,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:19,850 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:19,851 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:19,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable463 [2022-02-10 22:28:19,851 INFO L402 AbstractCegarLoop]: === Iteration 465 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:19,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:19,851 INFO L85 PathProgramCache]: Analyzing trace with hash -601469114, now seen corresponding path program 163 times [2022-02-10 22:28:19,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:19,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362591379] [2022-02-10 22:28:19,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:19,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:20,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:20,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:20,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362591379] [2022-02-10 22:28:20,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362591379] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:20,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:20,010 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:20,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472177343] [2022-02-10 22:28:20,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:20,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:20,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:20,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:20,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:20,010 INFO L87 Difference]: Start difference. First operand 7347 states and 19436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:20,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:20,481 INFO L93 Difference]: Finished difference Result 8671 states and 22917 transitions. [2022-02-10 22:28:20,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:28:20,481 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:20,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:20,491 INFO L225 Difference]: With dead ends: 8671 [2022-02-10 22:28:20,491 INFO L226 Difference]: Without dead ends: 8183 [2022-02-10 22:28:20,491 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:28:20,491 INFO L934 BasicCegarLoop]: 257 mSDtfsCounter, 226 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:20,491 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2725 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:20,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8183 states. [2022-02-10 22:28:20,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8183 to 7335. [2022-02-10 22:28:20,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6467139350968094) internal successors, (19411), 7334 states have internal predecessors, (19411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:20,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19411 transitions. [2022-02-10 22:28:20,579 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19411 transitions. Word has length 109 [2022-02-10 22:28:20,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:20,579 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19411 transitions. [2022-02-10 22:28:20,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:20,580 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19411 transitions. [2022-02-10 22:28:20,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:20,588 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:20,588 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:20,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable464 [2022-02-10 22:28:20,588 INFO L402 AbstractCegarLoop]: === Iteration 466 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:20,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:20,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1883813214, now seen corresponding path program 164 times [2022-02-10 22:28:20,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:20,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103735909] [2022-02-10 22:28:20,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:20,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:20,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:20,733 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:20,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103735909] [2022-02-10 22:28:20,733 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103735909] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:20,733 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:20,733 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:20,733 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602586335] [2022-02-10 22:28:20,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:20,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:20,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:20,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:20,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:20,734 INFO L87 Difference]: Start difference. First operand 7335 states and 19411 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:21,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:21,446 INFO L93 Difference]: Finished difference Result 8922 states and 23563 transitions. [2022-02-10 22:28:21,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:28:21,446 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:21,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:21,456 INFO L225 Difference]: With dead ends: 8922 [2022-02-10 22:28:21,457 INFO L226 Difference]: Without dead ends: 8357 [2022-02-10 22:28:21,457 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=636, Invalid=2016, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:28:21,457 INFO L934 BasicCegarLoop]: 278 mSDtfsCounter, 373 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 2934 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:21,457 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 2934 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:21,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8357 states. [2022-02-10 22:28:21,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8357 to 7339. [2022-02-10 22:28:21,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.646225129463069) internal successors, (19418), 7338 states have internal predecessors, (19418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:21,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19418 transitions. [2022-02-10 22:28:21,557 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19418 transitions. Word has length 109 [2022-02-10 22:28:21,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:21,557 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19418 transitions. [2022-02-10 22:28:21,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:21,557 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19418 transitions. [2022-02-10 22:28:21,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:21,565 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:21,566 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:21,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable465 [2022-02-10 22:28:21,566 INFO L402 AbstractCegarLoop]: === Iteration 467 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:21,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:21,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1019382152, now seen corresponding path program 165 times [2022-02-10 22:28:21,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:21,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947679462] [2022-02-10 22:28:21,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:21,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:21,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:21,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:21,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947679462] [2022-02-10 22:28:21,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947679462] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:21,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:21,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:21,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359025281] [2022-02-10 22:28:21,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:21,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:21,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:21,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:21,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:21,683 INFO L87 Difference]: Start difference. First operand 7339 states and 19418 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:22,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:22,390 INFO L93 Difference]: Finished difference Result 8805 states and 23256 transitions. [2022-02-10 22:28:22,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:28:22,391 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:22,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:22,402 INFO L225 Difference]: With dead ends: 8805 [2022-02-10 22:28:22,402 INFO L226 Difference]: Without dead ends: 8283 [2022-02-10 22:28:22,403 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=482, Invalid=1588, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:28:22,403 INFO L934 BasicCegarLoop]: 271 mSDtfsCounter, 316 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2442 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:22,403 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 2442 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:22,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2022-02-10 22:28:22,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 7343. [2022-02-10 22:28:22,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.645736856442386) internal successors, (19425), 7342 states have internal predecessors, (19425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19425 transitions. [2022-02-10 22:28:22,498 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19425 transitions. Word has length 109 [2022-02-10 22:28:22,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:22,498 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19425 transitions. [2022-02-10 22:28:22,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:22,498 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19425 transitions. [2022-02-10 22:28:22,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:22,506 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:22,506 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:22,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable466 [2022-02-10 22:28:22,506 INFO L402 AbstractCegarLoop]: === Iteration 468 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:22,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:22,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1717669794, now seen corresponding path program 166 times [2022-02-10 22:28:22,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:22,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013238562] [2022-02-10 22:28:22,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:22,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:22,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:22,627 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:22,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013238562] [2022-02-10 22:28:22,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013238562] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:22,627 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:22,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:22,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097507056] [2022-02-10 22:28:22,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:22,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:22,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:22,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:22,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:22,628 INFO L87 Difference]: Start difference. First operand 7343 states and 19425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:23,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:23,074 INFO L93 Difference]: Finished difference Result 8657 states and 22870 transitions. [2022-02-10 22:28:23,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:23,074 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:23,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:23,083 INFO L225 Difference]: With dead ends: 8657 [2022-02-10 22:28:23,083 INFO L226 Difference]: Without dead ends: 8178 [2022-02-10 22:28:23,084 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:28:23,084 INFO L934 BasicCegarLoop]: 259 mSDtfsCounter, 246 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:23,084 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2579 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:23,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8178 states. [2022-02-10 22:28:23,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8178 to 7347. [2022-02-10 22:28:23,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6452491151647153) internal successors, (19432), 7346 states have internal predecessors, (19432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:23,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19432 transitions. [2022-02-10 22:28:23,167 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19432 transitions. Word has length 109 [2022-02-10 22:28:23,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:23,168 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19432 transitions. [2022-02-10 22:28:23,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:23,168 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19432 transitions. [2022-02-10 22:28:23,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:23,175 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:23,175 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:23,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable467 [2022-02-10 22:28:23,175 INFO L402 AbstractCegarLoop]: === Iteration 469 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:23,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:23,175 INFO L85 PathProgramCache]: Analyzing trace with hash -949774384, now seen corresponding path program 167 times [2022-02-10 22:28:23,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:23,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400528273] [2022-02-10 22:28:23,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:23,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:23,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:23,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:23,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400528273] [2022-02-10 22:28:23,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400528273] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:23,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:23,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:23,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771587003] [2022-02-10 22:28:23,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:23,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:23,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:23,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:23,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:23,288 INFO L87 Difference]: Start difference. First operand 7347 states and 19432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:23,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:23,720 INFO L93 Difference]: Finished difference Result 8559 states and 22605 transitions. [2022-02-10 22:28:23,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:28:23,721 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:23,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:23,731 INFO L225 Difference]: With dead ends: 8559 [2022-02-10 22:28:23,731 INFO L226 Difference]: Without dead ends: 8063 [2022-02-10 22:28:23,731 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:28:23,731 INFO L934 BasicCegarLoop]: 253 mSDtfsCounter, 209 mSDsluCounter, 2668 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:23,731 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2868 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:23,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8063 states. [2022-02-10 22:28:23,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8063 to 7327. [2022-02-10 22:28:23,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7327 states, 7326 states have (on average 2.6471471471471473) internal successors, (19393), 7326 states have internal predecessors, (19393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:23,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7327 states to 7327 states and 19393 transitions. [2022-02-10 22:28:23,819 INFO L78 Accepts]: Start accepts. Automaton has 7327 states and 19393 transitions. Word has length 109 [2022-02-10 22:28:23,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:23,819 INFO L470 AbstractCegarLoop]: Abstraction has 7327 states and 19393 transitions. [2022-02-10 22:28:23,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:23,819 INFO L276 IsEmpty]: Start isEmpty. Operand 7327 states and 19393 transitions. [2022-02-10 22:28:23,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:23,826 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:23,826 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:23,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable468 [2022-02-10 22:28:23,826 INFO L402 AbstractCegarLoop]: === Iteration 470 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:23,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:23,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1941281456, now seen corresponding path program 168 times [2022-02-10 22:28:23,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:23,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821252664] [2022-02-10 22:28:23,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:23,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:23,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:23,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:23,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821252664] [2022-02-10 22:28:23,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821252664] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:23,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:23,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:23,946 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859522558] [2022-02-10 22:28:23,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:23,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:23,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:23,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:23,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:23,946 INFO L87 Difference]: Start difference. First operand 7327 states and 19393 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:24,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:24,396 INFO L93 Difference]: Finished difference Result 8593 states and 22706 transitions. [2022-02-10 22:28:24,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:28:24,396 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:24,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:24,409 INFO L225 Difference]: With dead ends: 8593 [2022-02-10 22:28:24,409 INFO L226 Difference]: Without dead ends: 8114 [2022-02-10 22:28:24,409 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:28:24,409 INFO L934 BasicCegarLoop]: 257 mSDtfsCounter, 241 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 2524 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:24,409 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 2524 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:24,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8114 states. [2022-02-10 22:28:24,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8114 to 7347. [2022-02-10 22:28:24,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6468826572284234) internal successors, (19444), 7346 states have internal predecessors, (19444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:24,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19444 transitions. [2022-02-10 22:28:24,524 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19444 transitions. Word has length 109 [2022-02-10 22:28:24,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:24,524 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19444 transitions. [2022-02-10 22:28:24,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:24,524 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19444 transitions. [2022-02-10 22:28:24,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:24,532 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:24,532 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:24,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable469 [2022-02-10 22:28:24,532 INFO L402 AbstractCegarLoop]: === Iteration 471 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:24,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:24,532 INFO L85 PathProgramCache]: Analyzing trace with hash -726162722, now seen corresponding path program 169 times [2022-02-10 22:28:24,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:24,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208476366] [2022-02-10 22:28:24,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:24,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:24,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:24,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:24,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208476366] [2022-02-10 22:28:24,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208476366] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:24,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:24,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:24,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666947235] [2022-02-10 22:28:24,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:24,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:24,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:24,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:24,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:24,654 INFO L87 Difference]: Start difference. First operand 7347 states and 19444 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:25,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:25,166 INFO L93 Difference]: Finished difference Result 8551 states and 22595 transitions. [2022-02-10 22:28:25,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:25,166 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:25,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:25,175 INFO L225 Difference]: With dead ends: 8551 [2022-02-10 22:28:25,175 INFO L226 Difference]: Without dead ends: 8071 [2022-02-10 22:28:25,175 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=378, Invalid=1104, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:28:25,176 INFO L934 BasicCegarLoop]: 258 mSDtfsCounter, 214 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:25,176 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2679 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:25,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8071 states. [2022-02-10 22:28:25,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8071 to 7343. [2022-02-10 22:28:25,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6468264777989647) internal successors, (19433), 7342 states have internal predecessors, (19433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:25,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19433 transitions. [2022-02-10 22:28:25,272 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19433 transitions. Word has length 109 [2022-02-10 22:28:25,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:25,272 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19433 transitions. [2022-02-10 22:28:25,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:25,272 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19433 transitions. [2022-02-10 22:28:25,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:25,281 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:25,281 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:25,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable470 [2022-02-10 22:28:25,281 INFO L402 AbstractCegarLoop]: === Iteration 472 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:25,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:25,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1847220062, now seen corresponding path program 170 times [2022-02-10 22:28:25,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:25,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769819340] [2022-02-10 22:28:25,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:25,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:25,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:25,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:25,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769819340] [2022-02-10 22:28:25,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769819340] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:25,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:25,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:25,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837550456] [2022-02-10 22:28:25,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:25,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:25,415 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:25,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:25,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:25,416 INFO L87 Difference]: Start difference. First operand 7343 states and 19433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:25,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:25,987 INFO L93 Difference]: Finished difference Result 8639 states and 22817 transitions. [2022-02-10 22:28:25,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:28:25,987 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:25,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:25,997 INFO L225 Difference]: With dead ends: 8639 [2022-02-10 22:28:25,997 INFO L226 Difference]: Without dead ends: 8119 [2022-02-10 22:28:25,997 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=506, Invalid=1474, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:28:25,998 INFO L934 BasicCegarLoop]: 262 mSDtfsCounter, 290 mSDsluCounter, 2559 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2768 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:25,998 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2768 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:26,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8119 states. [2022-02-10 22:28:26,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8119 to 7339. [2022-02-10 22:28:26,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6467702371218316) internal successors, (19422), 7338 states have internal predecessors, (19422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:26,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19422 transitions. [2022-02-10 22:28:26,083 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19422 transitions. Word has length 109 [2022-02-10 22:28:26,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:26,083 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19422 transitions. [2022-02-10 22:28:26,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:26,084 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19422 transitions. [2022-02-10 22:28:26,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:26,090 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:26,090 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:26,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable471 [2022-02-10 22:28:26,090 INFO L402 AbstractCegarLoop]: === Iteration 473 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:26,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:26,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1774590338, now seen corresponding path program 171 times [2022-02-10 22:28:26,091 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:26,091 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354224913] [2022-02-10 22:28:26,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:26,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:26,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:26,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:26,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354224913] [2022-02-10 22:28:26,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354224913] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:26,210 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:26,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:26,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317348834] [2022-02-10 22:28:26,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:26,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:26,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:26,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:26,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:26,211 INFO L87 Difference]: Start difference. First operand 7339 states and 19422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:26,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:26,790 INFO L93 Difference]: Finished difference Result 8753 states and 23117 transitions. [2022-02-10 22:28:26,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:28:26,790 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:26,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:26,800 INFO L225 Difference]: With dead ends: 8753 [2022-02-10 22:28:26,800 INFO L226 Difference]: Without dead ends: 8231 [2022-02-10 22:28:26,801 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:28:26,801 INFO L934 BasicCegarLoop]: 264 mSDtfsCounter, 331 mSDsluCounter, 2579 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:26,801 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2777 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:26,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8231 states. [2022-02-10 22:28:26,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8231 to 7343. [2022-02-10 22:28:26,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6462816671206757) internal successors, (19429), 7342 states have internal predecessors, (19429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:26,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19429 transitions. [2022-02-10 22:28:26,884 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19429 transitions. Word has length 109 [2022-02-10 22:28:26,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:26,884 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19429 transitions. [2022-02-10 22:28:26,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:26,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19429 transitions. [2022-02-10 22:28:26,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:26,891 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:26,891 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:26,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable472 [2022-02-10 22:28:26,891 INFO L402 AbstractCegarLoop]: === Iteration 474 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:26,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:26,891 INFO L85 PathProgramCache]: Analyzing trace with hash 962461608, now seen corresponding path program 172 times [2022-02-10 22:28:26,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:26,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795570311] [2022-02-10 22:28:26,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:26,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:27,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:27,011 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:27,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795570311] [2022-02-10 22:28:27,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795570311] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:27,011 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:27,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:27,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664123788] [2022-02-10 22:28:27,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:27,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:27,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:27,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:27,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:27,012 INFO L87 Difference]: Start difference. First operand 7343 states and 19429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:27,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:27,484 INFO L93 Difference]: Finished difference Result 8589 states and 22687 transitions. [2022-02-10 22:28:27,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:27,484 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:27,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:27,494 INFO L225 Difference]: With dead ends: 8589 [2022-02-10 22:28:27,494 INFO L226 Difference]: Without dead ends: 8110 [2022-02-10 22:28:27,494 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:28:27,494 INFO L934 BasicCegarLoop]: 256 mSDtfsCounter, 255 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:27,495 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 2910 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:27,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8110 states. [2022-02-10 22:28:27,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8110 to 7347. [2022-02-10 22:28:27,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6457936291859516) internal successors, (19436), 7346 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19436 transitions. [2022-02-10 22:28:27,592 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19436 transitions. Word has length 109 [2022-02-10 22:28:27,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:27,593 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19436 transitions. [2022-02-10 22:28:27,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:27,593 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19436 transitions. [2022-02-10 22:28:27,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:27,600 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:27,600 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:27,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable473 [2022-02-10 22:28:27,600 INFO L402 AbstractCegarLoop]: === Iteration 475 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:27,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:27,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1704982570, now seen corresponding path program 173 times [2022-02-10 22:28:27,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:27,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538029795] [2022-02-10 22:28:27,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:27,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:27,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:27,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:27,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538029795] [2022-02-10 22:28:27,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538029795] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:27,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:27,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:27,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433890999] [2022-02-10 22:28:27,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:27,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:27,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:27,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:27,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:27,756 INFO L87 Difference]: Start difference. First operand 7347 states and 19436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:28,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:28,222 INFO L93 Difference]: Finished difference Result 8523 states and 22510 transitions. [2022-02-10 22:28:28,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:28:28,222 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:28,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:28,232 INFO L225 Difference]: With dead ends: 8523 [2022-02-10 22:28:28,232 INFO L226 Difference]: Without dead ends: 8035 [2022-02-10 22:28:28,232 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:28:28,232 INFO L934 BasicCegarLoop]: 249 mSDtfsCounter, 233 mSDsluCounter, 2646 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:28,232 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2842 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:28,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8035 states. [2022-02-10 22:28:28,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8035 to 7335. [2022-02-10 22:28:28,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6467139350968094) internal successors, (19411), 7334 states have internal predecessors, (19411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:28,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19411 transitions. [2022-02-10 22:28:28,364 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19411 transitions. Word has length 109 [2022-02-10 22:28:28,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:28,364 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19411 transitions. [2022-02-10 22:28:28,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:28,364 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19411 transitions. [2022-02-10 22:28:28,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:28,370 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:28,370 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:28,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable474 [2022-02-10 22:28:28,371 INFO L402 AbstractCegarLoop]: === Iteration 476 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:28,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:28,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1307640626, now seen corresponding path program 174 times [2022-02-10 22:28:28,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:28,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988034616] [2022-02-10 22:28:28,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:28,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:28,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:28,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:28,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988034616] [2022-02-10 22:28:28,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988034616] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:28,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:28,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:28,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669609829] [2022-02-10 22:28:28,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:28,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:28,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:28,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:28,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:28,512 INFO L87 Difference]: Start difference. First operand 7335 states and 19411 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:29,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:29,323 INFO L93 Difference]: Finished difference Result 8886 states and 23464 transitions. [2022-02-10 22:28:29,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:28:29,324 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:29,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:29,334 INFO L225 Difference]: With dead ends: 8886 [2022-02-10 22:28:29,334 INFO L226 Difference]: Without dead ends: 8321 [2022-02-10 22:28:29,334 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=642, Invalid=2114, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:28:29,334 INFO L934 BasicCegarLoop]: 272 mSDtfsCounter, 407 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:29,334 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 2891 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:28:29,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8321 states. [2022-02-10 22:28:29,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8321 to 7339. [2022-02-10 22:28:29,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.646225129463069) internal successors, (19418), 7338 states have internal predecessors, (19418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:29,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19418 transitions. [2022-02-10 22:28:29,426 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19418 transitions. Word has length 109 [2022-02-10 22:28:29,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:29,426 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19418 transitions. [2022-02-10 22:28:29,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:29,426 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19418 transitions. [2022-02-10 22:28:29,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:29,434 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:29,434 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:29,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475 [2022-02-10 22:28:29,434 INFO L402 AbstractCegarLoop]: === Iteration 477 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:29,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:29,435 INFO L85 PathProgramCache]: Analyzing trace with hash -2122895608, now seen corresponding path program 175 times [2022-02-10 22:28:29,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:29,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100290915] [2022-02-10 22:28:29,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:29,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:29,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:29,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:29,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100290915] [2022-02-10 22:28:29,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100290915] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:29,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:29,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:29,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780524438] [2022-02-10 22:28:29,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:29,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:29,560 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:29,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:29,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:29,561 INFO L87 Difference]: Start difference. First operand 7339 states and 19418 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:30,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:30,140 INFO L93 Difference]: Finished difference Result 8761 states and 23135 transitions. [2022-02-10 22:28:30,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:28:30,141 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:30,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:30,152 INFO L225 Difference]: With dead ends: 8761 [2022-02-10 22:28:30,152 INFO L226 Difference]: Without dead ends: 8239 [2022-02-10 22:28:30,153 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=471, Invalid=1599, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:28:30,153 INFO L934 BasicCegarLoop]: 264 mSDtfsCounter, 331 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:30,153 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2785 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:30,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8239 states. [2022-02-10 22:28:30,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8239 to 7343. [2022-02-10 22:28:30,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.645736856442386) internal successors, (19425), 7342 states have internal predecessors, (19425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:30,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19425 transitions. [2022-02-10 22:28:30,254 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19425 transitions. Word has length 109 [2022-02-10 22:28:30,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:30,254 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19425 transitions. [2022-02-10 22:28:30,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:30,254 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19425 transitions. [2022-02-10 22:28:30,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:30,261 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:30,261 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:30,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476 [2022-02-10 22:28:30,261 INFO L402 AbstractCegarLoop]: === Iteration 478 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:30,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:30,262 INFO L85 PathProgramCache]: Analyzing trace with hash 614156338, now seen corresponding path program 176 times [2022-02-10 22:28:30,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:30,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232478202] [2022-02-10 22:28:30,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:30,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:30,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:30,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:30,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232478202] [2022-02-10 22:28:30,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232478202] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:30,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:30,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:30,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696790988] [2022-02-10 22:28:30,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:30,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:30,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:30,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:30,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:30,385 INFO L87 Difference]: Start difference. First operand 7343 states and 19425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:30,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:30,806 INFO L93 Difference]: Finished difference Result 8597 states and 22705 transitions. [2022-02-10 22:28:30,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:30,806 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:30,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:30,815 INFO L225 Difference]: With dead ends: 8597 [2022-02-10 22:28:30,815 INFO L226 Difference]: Without dead ends: 8118 [2022-02-10 22:28:30,816 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:28:30,816 INFO L934 BasicCegarLoop]: 252 mSDtfsCounter, 260 mSDsluCounter, 2081 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 2287 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:30,816 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 2287 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:30,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8118 states. [2022-02-10 22:28:30,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8118 to 7347. [2022-02-10 22:28:30,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6452491151647153) internal successors, (19432), 7346 states have internal predecessors, (19432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:30,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19432 transitions. [2022-02-10 22:28:30,900 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19432 transitions. Word has length 109 [2022-02-10 22:28:30,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:30,900 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19432 transitions. [2022-02-10 22:28:30,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:30,901 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19432 transitions. [2022-02-10 22:28:30,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:30,907 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:30,907 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:30,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable477 [2022-02-10 22:28:30,907 INFO L402 AbstractCegarLoop]: === Iteration 479 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:30,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:30,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2053287840, now seen corresponding path program 177 times [2022-02-10 22:28:30,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:30,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197039513] [2022-02-10 22:28:30,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:30,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:31,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:31,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:31,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197039513] [2022-02-10 22:28:31,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197039513] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:31,024 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:31,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:31,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349370517] [2022-02-10 22:28:31,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:31,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:31,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:31,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:31,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:31,024 INFO L87 Difference]: Start difference. First operand 7347 states and 19432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:31,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:31,470 INFO L93 Difference]: Finished difference Result 8523 states and 22506 transitions. [2022-02-10 22:28:31,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:28:31,471 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:31,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:31,480 INFO L225 Difference]: With dead ends: 8523 [2022-02-10 22:28:31,480 INFO L226 Difference]: Without dead ends: 8031 [2022-02-10 22:28:31,480 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:28:31,480 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 236 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:31,480 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2658 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:31,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8031 states. [2022-02-10 22:28:31,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8031 to 7331. [2022-02-10 22:28:31,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7331 states, 7330 states have (on average 2.6466575716234653) internal successors, (19400), 7330 states have internal predecessors, (19400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:31,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7331 states to 7331 states and 19400 transitions. [2022-02-10 22:28:31,564 INFO L78 Accepts]: Start accepts. Automaton has 7331 states and 19400 transitions. Word has length 109 [2022-02-10 22:28:31,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:31,564 INFO L470 AbstractCegarLoop]: Abstraction has 7331 states and 19400 transitions. [2022-02-10 22:28:31,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:31,564 INFO L276 IsEmpty]: Start isEmpty. Operand 7331 states and 19400 transitions. [2022-02-10 22:28:31,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:31,571 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:31,571 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:31,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable478 [2022-02-10 22:28:31,571 INFO L402 AbstractCegarLoop]: === Iteration 480 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:31,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:31,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1660117148, now seen corresponding path program 178 times [2022-02-10 22:28:31,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:31,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395391407] [2022-02-10 22:28:31,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:31,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:31,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:31,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:31,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395391407] [2022-02-10 22:28:31,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395391407] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:31,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:31,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:31,686 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477322419] [2022-02-10 22:28:31,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:31,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:31,686 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:31,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:31,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:31,686 INFO L87 Difference]: Start difference. First operand 7331 states and 19400 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:32,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:32,415 INFO L93 Difference]: Finished difference Result 8839 states and 23316 transitions. [2022-02-10 22:28:32,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:28:32,416 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:32,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:32,426 INFO L225 Difference]: With dead ends: 8839 [2022-02-10 22:28:32,426 INFO L226 Difference]: Without dead ends: 8231 [2022-02-10 22:28:32,426 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1024 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=847, Invalid=2813, Unknown=0, NotChecked=0, Total=3660 [2022-02-10 22:28:32,426 INFO L934 BasicCegarLoop]: 272 mSDtfsCounter, 485 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:32,426 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 2869 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:32,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8231 states. [2022-02-10 22:28:32,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8231 to 7335. [2022-02-10 22:28:32,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6461685301336244) internal successors, (19407), 7334 states have internal predecessors, (19407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:32,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19407 transitions. [2022-02-10 22:28:32,509 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19407 transitions. Word has length 109 [2022-02-10 22:28:32,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:32,509 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19407 transitions. [2022-02-10 22:28:32,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:32,510 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19407 transitions. [2022-02-10 22:28:32,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:32,516 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:32,516 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:32,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable479 [2022-02-10 22:28:32,517 INFO L402 AbstractCegarLoop]: === Iteration 481 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:32,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:32,517 INFO L85 PathProgramCache]: Analyzing trace with hash -610354592, now seen corresponding path program 179 times [2022-02-10 22:28:32,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:32,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461893219] [2022-02-10 22:28:32,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:32,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:32,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:32,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:32,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461893219] [2022-02-10 22:28:32,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461893219] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:32,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:32,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:32,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76357425] [2022-02-10 22:28:32,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:32,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:32,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:32,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:32,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:32,637 INFO L87 Difference]: Start difference. First operand 7335 states and 19407 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:33,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:33,343 INFO L93 Difference]: Finished difference Result 8726 states and 23020 transitions. [2022-02-10 22:28:33,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:28:33,343 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:33,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:33,354 INFO L225 Difference]: With dead ends: 8726 [2022-02-10 22:28:33,354 INFO L226 Difference]: Without dead ends: 8161 [2022-02-10 22:28:33,355 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=649, Invalid=2213, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:28:33,355 INFO L934 BasicCegarLoop]: 272 mSDtfsCounter, 409 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:33,355 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2420 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:33,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8161 states. [2022-02-10 22:28:33,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8161 to 7339. [2022-02-10 22:28:33,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6456800218043064) internal successors, (19414), 7338 states have internal predecessors, (19414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:33,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19414 transitions. [2022-02-10 22:28:33,440 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19414 transitions. Word has length 109 [2022-02-10 22:28:33,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:33,440 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19414 transitions. [2022-02-10 22:28:33,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:33,441 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19414 transitions. [2022-02-10 22:28:33,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:33,448 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:33,448 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:33,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable480 [2022-02-10 22:28:33,448 INFO L402 AbstractCegarLoop]: === Iteration 482 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:33,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:33,448 INFO L85 PathProgramCache]: Analyzing trace with hash 254076470, now seen corresponding path program 180 times [2022-02-10 22:28:33,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:33,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128692908] [2022-02-10 22:28:33,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:33,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:33,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:33,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:33,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128692908] [2022-02-10 22:28:33,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128692908] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:33,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:33,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:33,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742337168] [2022-02-10 22:28:33,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:33,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:33,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:33,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:33,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:33,581 INFO L87 Difference]: Start difference. First operand 7339 states and 19414 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:34,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:34,135 INFO L93 Difference]: Finished difference Result 8613 states and 22724 transitions. [2022-02-10 22:28:34,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:28:34,136 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:34,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:34,145 INFO L225 Difference]: With dead ends: 8613 [2022-02-10 22:28:34,145 INFO L226 Difference]: Without dead ends: 8091 [2022-02-10 22:28:34,145 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:28:34,146 INFO L934 BasicCegarLoop]: 260 mSDtfsCounter, 338 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:34,146 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 2571 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:34,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8091 states. [2022-02-10 22:28:34,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8091 to 7343. [2022-02-10 22:28:34,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.645192045764097) internal successors, (19421), 7342 states have internal predecessors, (19421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:34,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19421 transitions. [2022-02-10 22:28:34,238 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19421 transitions. Word has length 109 [2022-02-10 22:28:34,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:34,238 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19421 transitions. [2022-02-10 22:28:34,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:34,238 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19421 transitions. [2022-02-10 22:28:34,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:34,245 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:34,245 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:34,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable481 [2022-02-10 22:28:34,245 INFO L402 AbstractCegarLoop]: === Iteration 483 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:34,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:34,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1303838880, now seen corresponding path program 181 times [2022-02-10 22:28:34,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:34,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831126048] [2022-02-10 22:28:34,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:34,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:34,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:34,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:34,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831126048] [2022-02-10 22:28:34,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831126048] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:34,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:34,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:34,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938869333] [2022-02-10 22:28:34,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:34,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:34,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:34,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:34,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:34,375 INFO L87 Difference]: Start difference. First operand 7343 states and 19421 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:34,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:34,824 INFO L93 Difference]: Finished difference Result 8473 states and 22360 transitions. [2022-02-10 22:28:34,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:34,825 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:34,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:34,834 INFO L225 Difference]: With dead ends: 8473 [2022-02-10 22:28:34,834 INFO L226 Difference]: Without dead ends: 7994 [2022-02-10 22:28:34,834 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:28:34,834 INFO L934 BasicCegarLoop]: 248 mSDtfsCounter, 266 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:34,834 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 2653 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:34,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7994 states. [2022-02-10 22:28:34,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7994 to 7347. [2022-02-10 22:28:34,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6447046011434794) internal successors, (19428), 7346 states have internal predecessors, (19428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:34,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19428 transitions. [2022-02-10 22:28:34,915 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19428 transitions. Word has length 109 [2022-02-10 22:28:34,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:34,915 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19428 transitions. [2022-02-10 22:28:34,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:34,915 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19428 transitions. [2022-02-10 22:28:34,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:34,922 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:34,922 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:34,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable482 [2022-02-10 22:28:34,922 INFO L402 AbstractCegarLoop]: === Iteration 484 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:34,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:34,922 INFO L85 PathProgramCache]: Analyzing trace with hash 323684238, now seen corresponding path program 182 times [2022-02-10 22:28:34,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:34,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100662161] [2022-02-10 22:28:34,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:34,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:35,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:35,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:35,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100662161] [2022-02-10 22:28:35,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100662161] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:35,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:35,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:35,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869724021] [2022-02-10 22:28:35,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:35,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:35,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:35,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:35,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:35,041 INFO L87 Difference]: Start difference. First operand 7347 states and 19428 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:35,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:35,452 INFO L93 Difference]: Finished difference Result 8343 states and 22007 transitions. [2022-02-10 22:28:35,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:28:35,452 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:35,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:35,461 INFO L225 Difference]: With dead ends: 8343 [2022-02-10 22:28:35,461 INFO L226 Difference]: Without dead ends: 7817 [2022-02-10 22:28:35,462 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:28:35,462 INFO L934 BasicCegarLoop]: 241 mSDtfsCounter, 221 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:35,462 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2618 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:35,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7817 states. [2022-02-10 22:28:35,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7817 to 7297. [2022-02-10 22:28:35,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.647889254385965) internal successors, (19319), 7296 states have internal predecessors, (19319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:35,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19319 transitions. [2022-02-10 22:28:35,546 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19319 transitions. Word has length 109 [2022-02-10 22:28:35,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:35,546 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19319 transitions. [2022-02-10 22:28:35,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:35,547 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19319 transitions. [2022-02-10 22:28:35,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:35,554 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:35,554 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:35,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable483 [2022-02-10 22:28:35,554 INFO L402 AbstractCegarLoop]: === Iteration 485 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:35,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:35,554 INFO L85 PathProgramCache]: Analyzing trace with hash -744472904, now seen corresponding path program 183 times [2022-02-10 22:28:35,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:35,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870373501] [2022-02-10 22:28:35,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:35,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:35,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:35,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:35,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870373501] [2022-02-10 22:28:35,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870373501] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:35,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:35,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:35,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121899224] [2022-02-10 22:28:35,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:35,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:35,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:35,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:35,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:35,709 INFO L87 Difference]: Start difference. First operand 7297 states and 19319 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:36,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:36,196 INFO L93 Difference]: Finished difference Result 8551 states and 22599 transitions. [2022-02-10 22:28:36,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:28:36,197 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:36,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:36,209 INFO L225 Difference]: With dead ends: 8551 [2022-02-10 22:28:36,209 INFO L226 Difference]: Without dead ends: 8072 [2022-02-10 22:28:36,209 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=302, Invalid=888, Unknown=0, NotChecked=0, Total=1190 [2022-02-10 22:28:36,209 INFO L934 BasicCegarLoop]: 241 mSDtfsCounter, 204 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 2391 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:36,209 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 2391 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:28:36,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8072 states. [2022-02-10 22:28:36,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8072 to 7321. [2022-02-10 22:28:36,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6476775956284153) internal successors, (19381), 7320 states have internal predecessors, (19381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:36,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19381 transitions. [2022-02-10 22:28:36,316 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19381 transitions. Word has length 109 [2022-02-10 22:28:36,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:36,316 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19381 transitions. [2022-02-10 22:28:36,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:36,316 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19381 transitions. [2022-02-10 22:28:36,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:36,326 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:36,326 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:36,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable484 [2022-02-10 22:28:36,326 INFO L402 AbstractCegarLoop]: === Iteration 486 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:36,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:36,326 INFO L85 PathProgramCache]: Analyzing trace with hash 883050214, now seen corresponding path program 184 times [2022-02-10 22:28:36,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:36,327 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961270199] [2022-02-10 22:28:36,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:36,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:36,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:36,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:36,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961270199] [2022-02-10 22:28:36,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961270199] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:36,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:36,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:36,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738913712] [2022-02-10 22:28:36,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:36,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:36,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:36,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:36,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:36,482 INFO L87 Difference]: Start difference. First operand 7321 states and 19381 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:36,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:36,946 INFO L93 Difference]: Finished difference Result 8517 states and 22510 transitions. [2022-02-10 22:28:36,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:36,946 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:36,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:36,956 INFO L225 Difference]: With dead ends: 8517 [2022-02-10 22:28:36,956 INFO L226 Difference]: Without dead ends: 8037 [2022-02-10 22:28:36,956 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=329, Invalid=1153, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:28:36,957 INFO L934 BasicCegarLoop]: 243 mSDtfsCounter, 204 mSDsluCounter, 2533 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:36,957 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 2729 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:36,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8037 states. [2022-02-10 22:28:37,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8037 to 7317. [2022-02-10 22:28:37,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6476216511755055) internal successors, (19370), 7316 states have internal predecessors, (19370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:37,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19370 transitions. [2022-02-10 22:28:37,064 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19370 transitions. Word has length 109 [2022-02-10 22:28:37,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:37,064 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19370 transitions. [2022-02-10 22:28:37,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:37,064 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19370 transitions. [2022-02-10 22:28:37,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:37,074 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:37,075 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:37,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable485 [2022-02-10 22:28:37,075 INFO L402 AbstractCegarLoop]: === Iteration 487 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:37,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:37,075 INFO L85 PathProgramCache]: Analyzing trace with hash -238007126, now seen corresponding path program 185 times [2022-02-10 22:28:37,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:37,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688386928] [2022-02-10 22:28:37,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:37,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:37,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:37,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:37,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688386928] [2022-02-10 22:28:37,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688386928] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:37,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:37,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:37,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614652511] [2022-02-10 22:28:37,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:37,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:37,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:37,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:37,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:37,272 INFO L87 Difference]: Start difference. First operand 7317 states and 19370 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:37,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:37,884 INFO L93 Difference]: Finished difference Result 8553 states and 22605 transitions. [2022-02-10 22:28:37,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:28:37,884 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:37,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:37,894 INFO L225 Difference]: With dead ends: 8553 [2022-02-10 22:28:37,894 INFO L226 Difference]: Without dead ends: 8033 [2022-02-10 22:28:37,894 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=484, Invalid=1678, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:28:37,895 INFO L934 BasicCegarLoop]: 252 mSDtfsCounter, 270 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:37,895 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2545 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:37,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8033 states. [2022-02-10 22:28:37,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8033 to 7313. [2022-02-10 22:28:37,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.647565645514223) internal successors, (19359), 7312 states have internal predecessors, (19359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:37,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19359 transitions. [2022-02-10 22:28:37,998 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19359 transitions. Word has length 109 [2022-02-10 22:28:37,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:37,998 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19359 transitions. [2022-02-10 22:28:37,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:37,998 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19359 transitions. [2022-02-10 22:28:38,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:38,005 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:38,005 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:38,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable486 [2022-02-10 22:28:38,005 INFO L402 AbstractCegarLoop]: === Iteration 488 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:38,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:38,006 INFO L85 PathProgramCache]: Analyzing trace with hash -763142662, now seen corresponding path program 186 times [2022-02-10 22:28:38,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:38,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430367952] [2022-02-10 22:28:38,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:38,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:38,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:38,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:38,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430367952] [2022-02-10 22:28:38,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430367952] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:38,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:38,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:38,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480245667] [2022-02-10 22:28:38,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:38,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:38,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:38,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:38,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:38,137 INFO L87 Difference]: Start difference. First operand 7313 states and 19359 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:38,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:38,834 INFO L93 Difference]: Finished difference Result 8781 states and 23204 transitions. [2022-02-10 22:28:38,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:28:38,834 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:38,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:38,848 INFO L225 Difference]: With dead ends: 8781 [2022-02-10 22:28:38,848 INFO L226 Difference]: Without dead ends: 8221 [2022-02-10 22:28:38,849 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=668, Invalid=2194, Unknown=0, NotChecked=0, Total=2862 [2022-02-10 22:28:38,849 INFO L934 BasicCegarLoop]: 258 mSDtfsCounter, 363 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 2459 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:38,849 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 2459 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:38,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8221 states. [2022-02-10 22:28:38,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8221 to 7309. [2022-02-10 22:28:38,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6475095785440614) internal successors, (19348), 7308 states have internal predecessors, (19348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:38,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19348 transitions. [2022-02-10 22:28:38,964 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19348 transitions. Word has length 109 [2022-02-10 22:28:38,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:38,964 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19348 transitions. [2022-02-10 22:28:38,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:38,964 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19348 transitions. [2022-02-10 22:28:38,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:38,975 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:38,975 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:38,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable487 [2022-02-10 22:28:38,975 INFO L402 AbstractCegarLoop]: === Iteration 489 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:38,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:38,976 INFO L85 PathProgramCache]: Analyzing trace with hash -953456066, now seen corresponding path program 187 times [2022-02-10 22:28:38,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:38,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352528621] [2022-02-10 22:28:38,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:38,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:39,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:39,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:39,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352528621] [2022-02-10 22:28:39,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352528621] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:39,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:39,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:39,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828525077] [2022-02-10 22:28:39,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:39,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:39,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:39,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:39,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:39,091 INFO L87 Difference]: Start difference. First operand 7309 states and 19348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:39,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:39,581 INFO L93 Difference]: Finished difference Result 8527 states and 22529 transitions. [2022-02-10 22:28:39,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:28:39,582 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:39,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:39,593 INFO L225 Difference]: With dead ends: 8527 [2022-02-10 22:28:39,593 INFO L226 Difference]: Without dead ends: 8048 [2022-02-10 22:28:39,593 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:28:39,593 INFO L934 BasicCegarLoop]: 243 mSDtfsCounter, 221 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:39,593 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2445 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:28:39,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8048 states. [2022-02-10 22:28:39,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8048 to 7321. [2022-02-10 22:28:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6471311475409838) internal successors, (19377), 7320 states have internal predecessors, (19377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:39,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19377 transitions. [2022-02-10 22:28:39,688 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19377 transitions. Word has length 109 [2022-02-10 22:28:39,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:39,689 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19377 transitions. [2022-02-10 22:28:39,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:39,689 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19377 transitions. [2022-02-10 22:28:39,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:39,696 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:39,696 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:39,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable488 [2022-02-10 22:28:39,696 INFO L402 AbstractCegarLoop]: === Iteration 490 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:39,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:39,696 INFO L85 PathProgramCache]: Analyzing trace with hash 674067052, now seen corresponding path program 188 times [2022-02-10 22:28:39,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:39,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203157013] [2022-02-10 22:28:39,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:39,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:39,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:39,812 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:39,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203157013] [2022-02-10 22:28:39,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203157013] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:39,812 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:39,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:39,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355130787] [2022-02-10 22:28:39,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:39,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:39,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:39,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:39,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:39,813 INFO L87 Difference]: Start difference. First operand 7321 states and 19377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:40,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:40,269 INFO L93 Difference]: Finished difference Result 8485 states and 22418 transitions. [2022-02-10 22:28:40,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:40,270 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:40,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:40,280 INFO L225 Difference]: With dead ends: 8485 [2022-02-10 22:28:40,280 INFO L226 Difference]: Without dead ends: 8005 [2022-02-10 22:28:40,280 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:28:40,280 INFO L934 BasicCegarLoop]: 244 mSDtfsCounter, 218 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:40,280 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 2450 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:40,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8005 states. [2022-02-10 22:28:40,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8005 to 7317. [2022-02-10 22:28:40,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-02-10 22:28:40,386 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-02-10 22:28:40,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:40,387 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-02-10 22:28:40,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:40,387 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-02-10 22:28:40,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:40,395 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:40,395 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:40,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable489 [2022-02-10 22:28:40,395 INFO L402 AbstractCegarLoop]: === Iteration 491 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:40,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:40,395 INFO L85 PathProgramCache]: Analyzing trace with hash -446990288, now seen corresponding path program 189 times [2022-02-10 22:28:40,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:40,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380799091] [2022-02-10 22:28:40,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:40,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:40,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:40,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:40,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380799091] [2022-02-10 22:28:40,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380799091] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:40,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:40,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:40,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145753043] [2022-02-10 22:28:40,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:40,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:40,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:40,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:40,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:40,538 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:41,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:41,133 INFO L93 Difference]: Finished difference Result 8653 states and 22860 transitions. [2022-02-10 22:28:41,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:28:41,133 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:41,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:41,143 INFO L225 Difference]: With dead ends: 8653 [2022-02-10 22:28:41,143 INFO L226 Difference]: Without dead ends: 8133 [2022-02-10 22:28:41,143 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:28:41,143 INFO L934 BasicCegarLoop]: 250 mSDtfsCounter, 285 mSDsluCounter, 2453 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 2657 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:41,144 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 2657 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:41,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8133 states. [2022-02-10 22:28:41,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8133 to 7313. [2022-02-10 22:28:41,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:41,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-02-10 22:28:41,266 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-02-10 22:28:41,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:41,266 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-02-10 22:28:41,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:41,266 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-02-10 22:28:41,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:41,277 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:41,277 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:41,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable490 [2022-02-10 22:28:41,278 INFO L402 AbstractCegarLoop]: === Iteration 492 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:41,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:41,278 INFO L85 PathProgramCache]: Analyzing trace with hash -374360564, now seen corresponding path program 190 times [2022-02-10 22:28:41,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:41,278 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139229015] [2022-02-10 22:28:41,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:41,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:41,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:41,432 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:41,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139229015] [2022-02-10 22:28:41,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139229015] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:41,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:41,433 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:41,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419843147] [2022-02-10 22:28:41,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:41,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:41,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:41,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:41,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:41,433 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:41,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:41,968 INFO L93 Difference]: Finished difference Result 8571 states and 22621 transitions. [2022-02-10 22:28:41,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:28:41,968 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:41,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:41,978 INFO L225 Difference]: With dead ends: 8571 [2022-02-10 22:28:41,978 INFO L226 Difference]: Without dead ends: 8049 [2022-02-10 22:28:41,978 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=440, Invalid=1282, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:28:41,978 INFO L934 BasicCegarLoop]: 251 mSDtfsCounter, 286 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:41,978 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 1939 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:41,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8049 states. [2022-02-10 22:28:42,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8049 to 7317. [2022-02-10 22:28:42,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:42,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-02-10 22:28:42,071 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-02-10 22:28:42,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:42,071 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-02-10 22:28:42,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:42,071 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-02-10 22:28:42,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:42,078 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:42,078 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:42,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable491 [2022-02-10 22:28:42,078 INFO L402 AbstractCegarLoop]: === Iteration 493 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:42,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:42,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1932275914, now seen corresponding path program 191 times [2022-02-10 22:28:42,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:42,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67197949] [2022-02-10 22:28:42,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:42,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:42,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:42,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:42,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67197949] [2022-02-10 22:28:42,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67197949] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:42,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:42,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:42,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939046001] [2022-02-10 22:28:42,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:42,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:42,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:42,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:42,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:42,198 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:42,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:42,635 INFO L93 Difference]: Finished difference Result 8471 states and 22367 transitions. [2022-02-10 22:28:42,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:42,636 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:42,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:42,647 INFO L225 Difference]: With dead ends: 8471 [2022-02-10 22:28:42,647 INFO L226 Difference]: Without dead ends: 7992 [2022-02-10 22:28:42,647 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=336, Invalid=996, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:28:42,647 INFO L934 BasicCegarLoop]: 246 mSDtfsCounter, 227 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:42,647 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 1906 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:42,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2022-02-10 22:28:42,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7321. [2022-02-10 22:28:42,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6460382513661203) internal successors, (19369), 7320 states have internal predecessors, (19369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:42,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19369 transitions. [2022-02-10 22:28:42,737 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19369 transitions. Word has length 109 [2022-02-10 22:28:42,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:42,737 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19369 transitions. [2022-02-10 22:28:42,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:42,737 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19369 transitions. [2022-02-10 22:28:42,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:42,744 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:42,745 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:42,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable492 [2022-02-10 22:28:42,745 INFO L402 AbstractCegarLoop]: === Iteration 494 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:42,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:42,745 INFO L85 PathProgramCache]: Analyzing trace with hash -304752796, now seen corresponding path program 192 times [2022-02-10 22:28:42,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:42,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477923230] [2022-02-10 22:28:42,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:42,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:42,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:42,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:42,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477923230] [2022-02-10 22:28:42,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477923230] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:42,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:42,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:42,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708355534] [2022-02-10 22:28:42,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:42,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:42,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:42,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:42,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:42,861 INFO L87 Difference]: Start difference. First operand 7321 states and 19369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:43,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:43,302 INFO L93 Difference]: Finished difference Result 8421 states and 22234 transitions. [2022-02-10 22:28:43,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:28:43,303 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:43,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:43,314 INFO L225 Difference]: With dead ends: 8421 [2022-02-10 22:28:43,314 INFO L226 Difference]: Without dead ends: 7929 [2022-02-10 22:28:43,315 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:28:43,315 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 196 mSDsluCounter, 2400 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:43,315 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 2601 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:43,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7929 states. [2022-02-10 22:28:43,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7929 to 7305. [2022-02-10 22:28:43,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.6474534501642935) internal successors, (19337), 7304 states have internal predecessors, (19337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:43,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19337 transitions. [2022-02-10 22:28:43,413 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19337 transitions. Word has length 109 [2022-02-10 22:28:43,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:43,413 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19337 transitions. [2022-02-10 22:28:43,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:43,413 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19337 transitions. [2022-02-10 22:28:43,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:43,421 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:43,421 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:43,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable493 [2022-02-10 22:28:43,421 INFO L402 AbstractCegarLoop]: === Iteration 495 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:43,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:43,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1565037480, now seen corresponding path program 193 times [2022-02-10 22:28:43,421 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:43,421 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406629523] [2022-02-10 22:28:43,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:43,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:43,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:43,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:43,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406629523] [2022-02-10 22:28:43,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406629523] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:43,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:43,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:43,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398053142] [2022-02-10 22:28:43,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:43,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:43,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:43,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:43,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:43,544 INFO L87 Difference]: Start difference. First operand 7305 states and 19337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:43,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:43,965 INFO L93 Difference]: Finished difference Result 8363 states and 22078 transitions. [2022-02-10 22:28:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:28:43,965 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:43,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:43,973 INFO L225 Difference]: With dead ends: 8363 [2022-02-10 22:28:43,973 INFO L226 Difference]: Without dead ends: 7884 [2022-02-10 22:28:43,973 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=289, Invalid=833, Unknown=0, NotChecked=0, Total=1122 [2022-02-10 22:28:43,974 INFO L934 BasicCegarLoop]: 239 mSDtfsCounter, 213 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2032 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:43,974 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2032 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:43,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7884 states. [2022-02-10 22:28:44,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7884 to 7321. [2022-02-10 22:28:44,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6471311475409838) internal successors, (19377), 7320 states have internal predecessors, (19377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:44,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19377 transitions. [2022-02-10 22:28:44,054 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19377 transitions. Word has length 109 [2022-02-10 22:28:44,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:44,054 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19377 transitions. [2022-02-10 22:28:44,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:44,054 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19377 transitions. [2022-02-10 22:28:44,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:44,061 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:44,061 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:44,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable494 [2022-02-10 22:28:44,061 INFO L402 AbstractCegarLoop]: === Iteration 496 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:44,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:44,061 INFO L85 PathProgramCache]: Analyzing trace with hash 62485638, now seen corresponding path program 194 times [2022-02-10 22:28:44,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:44,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228883484] [2022-02-10 22:28:44,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:44,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:44,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:44,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:44,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228883484] [2022-02-10 22:28:44,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228883484] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:44,178 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:44,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:44,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58979089] [2022-02-10 22:28:44,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:44,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:44,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:44,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:44,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:44,178 INFO L87 Difference]: Start difference. First operand 7321 states and 19377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:44,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:44,609 INFO L93 Difference]: Finished difference Result 8333 states and 22000 transitions. [2022-02-10 22:28:44,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:44,609 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:44,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:44,619 INFO L225 Difference]: With dead ends: 8333 [2022-02-10 22:28:44,619 INFO L226 Difference]: Without dead ends: 7853 [2022-02-10 22:28:44,620 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:28:44,620 INFO L934 BasicCegarLoop]: 243 mSDtfsCounter, 214 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2335 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:44,620 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2335 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:44,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7853 states. [2022-02-10 22:28:44,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7853 to 7317. [2022-02-10 22:28:44,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:44,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-02-10 22:28:44,719 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-02-10 22:28:44,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:44,719 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-02-10 22:28:44,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:44,720 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-02-10 22:28:44,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:44,727 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:44,727 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:44,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable495 [2022-02-10 22:28:44,727 INFO L402 AbstractCegarLoop]: === Iteration 497 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:44,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:44,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1058571702, now seen corresponding path program 195 times [2022-02-10 22:28:44,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:44,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978337727] [2022-02-10 22:28:44,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:44,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:44,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:44,841 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:44,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978337727] [2022-02-10 22:28:44,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978337727] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:44,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:44,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:44,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520803453] [2022-02-10 22:28:44,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:44,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:44,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:44,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:44,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:44,842 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:45,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:45,421 INFO L93 Difference]: Finished difference Result 8369 states and 22095 transitions. [2022-02-10 22:28:45,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:28:45,421 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:45,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:45,430 INFO L225 Difference]: With dead ends: 8369 [2022-02-10 22:28:45,430 INFO L226 Difference]: Without dead ends: 7849 [2022-02-10 22:28:45,431 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:28:45,431 INFO L934 BasicCegarLoop]: 252 mSDtfsCounter, 262 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:45,431 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 2694 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:45,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7849 states. [2022-02-10 22:28:45,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7849 to 7313. [2022-02-10 22:28:45,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:45,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-02-10 22:28:45,517 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-02-10 22:28:45,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:45,517 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-02-10 22:28:45,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:45,517 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-02-10 22:28:45,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:45,524 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:45,524 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:45,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable496 [2022-02-10 22:28:45,524 INFO L402 AbstractCegarLoop]: === Iteration 498 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:45,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:45,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1583707238, now seen corresponding path program 196 times [2022-02-10 22:28:45,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:45,524 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264988249] [2022-02-10 22:28:45,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:45,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:45,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:45,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:45,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264988249] [2022-02-10 22:28:45,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264988249] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:45,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:45,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:45,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099323700] [2022-02-10 22:28:45,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:45,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:45,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:45,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:45,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:45,635 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:46,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:46,286 INFO L93 Difference]: Finished difference Result 8405 states and 22190 transitions. [2022-02-10 22:28:46,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:28:46,286 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:46,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:46,296 INFO L225 Difference]: With dead ends: 8405 [2022-02-10 22:28:46,296 INFO L226 Difference]: Without dead ends: 7845 [2022-02-10 22:28:46,296 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-02-10 22:28:46,297 INFO L934 BasicCegarLoop]: 261 mSDtfsCounter, 326 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 2634 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:46,297 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 2634 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:46,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7845 states. [2022-02-10 22:28:46,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7845 to 7309. [2022-02-10 22:28:46,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6469622331691296) internal successors, (19344), 7308 states have internal predecessors, (19344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:46,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19344 transitions. [2022-02-10 22:28:46,383 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19344 transitions. Word has length 109 [2022-02-10 22:28:46,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:46,383 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19344 transitions. [2022-02-10 22:28:46,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:46,383 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19344 transitions. [2022-02-10 22:28:46,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:46,391 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:46,391 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:46,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable497 [2022-02-10 22:28:46,391 INFO L402 AbstractCegarLoop]: === Iteration 499 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:46,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:46,391 INFO L85 PathProgramCache]: Analyzing trace with hash -931413972, now seen corresponding path program 197 times [2022-02-10 22:28:46,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:46,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093722851] [2022-02-10 22:28:46,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:46,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:46,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:46,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:46,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093722851] [2022-02-10 22:28:46,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093722851] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:46,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:46,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:46,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748735081] [2022-02-10 22:28:46,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:46,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:46,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:46,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:46,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:46,515 INFO L87 Difference]: Start difference. First operand 7309 states and 19344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:47,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:47,183 INFO L93 Difference]: Finished difference Result 8373 states and 22102 transitions. [2022-02-10 22:28:47,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 22:28:47,183 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:47,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:47,192 INFO L225 Difference]: With dead ends: 8373 [2022-02-10 22:28:47,192 INFO L226 Difference]: Without dead ends: 7769 [2022-02-10 22:28:47,192 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=796, Invalid=2510, Unknown=0, NotChecked=0, Total=3306 [2022-02-10 22:28:47,193 INFO L934 BasicCegarLoop]: 261 mSDtfsCounter, 386 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 2469 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:47,193 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 2469 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:47,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7769 states. [2022-02-10 22:28:47,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7769 to 7301. [2022-02-10 22:28:47,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7301 states, 7300 states have (on average 2.647397260273973) internal successors, (19326), 7300 states have internal predecessors, (19326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 19326 transitions. [2022-02-10 22:28:47,270 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 19326 transitions. Word has length 109 [2022-02-10 22:28:47,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:47,270 INFO L470 AbstractCegarLoop]: Abstraction has 7301 states and 19326 transitions. [2022-02-10 22:28:47,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:47,270 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 19326 transitions. [2022-02-10 22:28:47,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:47,276 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:47,276 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:47,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable498 [2022-02-10 22:28:47,277 INFO L402 AbstractCegarLoop]: === Iteration 500 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:47,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:47,277 INFO L85 PathProgramCache]: Analyzing trace with hash 698429018, now seen corresponding path program 198 times [2022-02-10 22:28:47,277 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:47,277 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943468216] [2022-02-10 22:28:47,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:47,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:47,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:47,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:47,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943468216] [2022-02-10 22:28:47,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943468216] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:47,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:47,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:47,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604748534] [2022-02-10 22:28:47,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:47,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:47,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:47,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:47,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:47,397 INFO L87 Difference]: Start difference. First operand 7301 states and 19326 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:47,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:47,805 INFO L93 Difference]: Finished difference Result 8503 states and 22467 transitions. [2022-02-10 22:28:47,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:28:47,805 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:47,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:47,814 INFO L225 Difference]: With dead ends: 8503 [2022-02-10 22:28:47,814 INFO L226 Difference]: Without dead ends: 8024 [2022-02-10 22:28:47,814 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=894, Unknown=0, NotChecked=0, Total=1190 [2022-02-10 22:28:47,814 INFO L934 BasicCegarLoop]: 234 mSDtfsCounter, 241 mSDsluCounter, 2004 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:47,814 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 2194 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:47,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8024 states. [2022-02-10 22:28:47,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8024 to 7321. [2022-02-10 22:28:47,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6471311475409838) internal successors, (19377), 7320 states have internal predecessors, (19377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:47,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19377 transitions. [2022-02-10 22:28:47,894 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19377 transitions. Word has length 109 [2022-02-10 22:28:47,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:47,894 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19377 transitions. [2022-02-10 22:28:47,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:47,894 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19377 transitions. [2022-02-10 22:28:47,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:47,901 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:47,901 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:47,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable499 [2022-02-10 22:28:47,901 INFO L402 AbstractCegarLoop]: === Iteration 501 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:47,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:47,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1969015160, now seen corresponding path program 199 times [2022-02-10 22:28:47,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:47,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136386552] [2022-02-10 22:28:47,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:47,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:48,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:48,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:48,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136386552] [2022-02-10 22:28:48,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136386552] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:48,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:48,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:48,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612121212] [2022-02-10 22:28:48,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:48,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:48,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:48,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:48,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:48,017 INFO L87 Difference]: Start difference. First operand 7321 states and 19377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:48,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:48,454 INFO L93 Difference]: Finished difference Result 8469 states and 22378 transitions. [2022-02-10 22:28:48,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:48,455 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:48,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:48,464 INFO L225 Difference]: With dead ends: 8469 [2022-02-10 22:28:48,464 INFO L226 Difference]: Without dead ends: 7989 [2022-02-10 22:28:48,464 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:28:48,464 INFO L934 BasicCegarLoop]: 236 mSDtfsCounter, 216 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:48,464 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2679 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:48,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7989 states. [2022-02-10 22:28:48,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7989 to 7317. [2022-02-10 22:28:48,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:48,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-02-10 22:28:48,546 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-02-10 22:28:48,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:48,546 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-02-10 22:28:48,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:48,546 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-02-10 22:28:48,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:48,552 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:48,552 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:48,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable500 [2022-02-10 22:28:48,552 INFO L402 AbstractCegarLoop]: === Iteration 502 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:48,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:48,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1204894796, now seen corresponding path program 200 times [2022-02-10 22:28:48,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:48,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015369976] [2022-02-10 22:28:48,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:48,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:48,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:48,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015369976] [2022-02-10 22:28:48,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015369976] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:48,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:48,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:48,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295799871] [2022-02-10 22:28:48,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:48,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:48,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:48,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:48,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:48,668 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:49,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:49,211 INFO L93 Difference]: Finished difference Result 8505 states and 22473 transitions. [2022-02-10 22:28:49,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:28:49,211 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:49,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:49,220 INFO L225 Difference]: With dead ends: 8505 [2022-02-10 22:28:49,220 INFO L226 Difference]: Without dead ends: 7985 [2022-02-10 22:28:49,220 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=493, Invalid=1669, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:28:49,220 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 289 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:49,220 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 2626 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:49,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7985 states. [2022-02-10 22:28:49,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7985 to 7313. [2022-02-10 22:28:49,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:49,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-02-10 22:28:49,300 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-02-10 22:28:49,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:49,300 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-02-10 22:28:49,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:49,300 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-02-10 22:28:49,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:49,307 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:49,307 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:49,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable501 [2022-02-10 22:28:49,308 INFO L402 AbstractCegarLoop]: === Iteration 503 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:49,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:49,308 INFO L85 PathProgramCache]: Analyzing trace with hash 679759260, now seen corresponding path program 201 times [2022-02-10 22:28:49,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:49,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823729690] [2022-02-10 22:28:49,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:49,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:49,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:49,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:49,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823729690] [2022-02-10 22:28:49,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823729690] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:49,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:49,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:49,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958607218] [2022-02-10 22:28:49,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:49,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:49,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:49,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:49,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:49,422 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:50,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:50,039 INFO L93 Difference]: Finished difference Result 8649 states and 22841 transitions. [2022-02-10 22:28:50,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:28:50,039 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:50,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:50,049 INFO L225 Difference]: With dead ends: 8649 [2022-02-10 22:28:50,049 INFO L226 Difference]: Without dead ends: 8089 [2022-02-10 22:28:50,049 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=661, Invalid=2095, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:28:50,050 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 380 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 2479 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:50,050 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 2479 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:50,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8089 states. [2022-02-10 22:28:50,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8089 to 7309. [2022-02-10 22:28:50,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6469622331691296) internal successors, (19344), 7308 states have internal predecessors, (19344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:50,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19344 transitions. [2022-02-10 22:28:50,133 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19344 transitions. Word has length 109 [2022-02-10 22:28:50,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:50,133 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19344 transitions. [2022-02-10 22:28:50,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:50,133 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19344 transitions. [2022-02-10 22:28:50,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:50,140 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:50,140 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:50,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable502 [2022-02-10 22:28:50,140 INFO L402 AbstractCegarLoop]: === Iteration 504 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:50,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:50,140 INFO L85 PathProgramCache]: Analyzing trace with hash 489445856, now seen corresponding path program 202 times [2022-02-10 22:28:50,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:50,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432089722] [2022-02-10 22:28:50,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:50,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:50,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:50,286 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:50,286 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432089722] [2022-02-10 22:28:50,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432089722] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:50,286 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:50,286 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:50,286 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871949081] [2022-02-10 22:28:50,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:50,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:50,286 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:50,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:50,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:50,286 INFO L87 Difference]: Start difference. First operand 7309 states and 19344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:50,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:50,727 INFO L93 Difference]: Finished difference Result 8575 states and 22661 transitions. [2022-02-10 22:28:50,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:28:50,728 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:50,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:50,738 INFO L225 Difference]: With dead ends: 8575 [2022-02-10 22:28:50,738 INFO L226 Difference]: Without dead ends: 8096 [2022-02-10 22:28:50,738 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:28:50,738 INFO L934 BasicCegarLoop]: 238 mSDtfsCounter, 232 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:50,738 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 2558 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:50,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2022-02-10 22:28:50,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 7321. [2022-02-10 22:28:50,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.646584699453552) internal successors, (19373), 7320 states have internal predecessors, (19373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:50,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19373 transitions. [2022-02-10 22:28:50,828 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19373 transitions. Word has length 109 [2022-02-10 22:28:50,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:50,828 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19373 transitions. [2022-02-10 22:28:50,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:50,828 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19373 transitions. [2022-02-10 22:28:50,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:50,835 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:50,835 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:50,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable503 [2022-02-10 22:28:50,835 INFO L402 AbstractCegarLoop]: === Iteration 505 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:50,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:50,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2116968974, now seen corresponding path program 203 times [2022-02-10 22:28:50,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:50,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320968766] [2022-02-10 22:28:50,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:50,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:50,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:50,952 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:50,952 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320968766] [2022-02-10 22:28:50,952 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320968766] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:50,952 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:50,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:50,953 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284143543] [2022-02-10 22:28:50,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:50,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:50,953 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:50,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:50,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:50,953 INFO L87 Difference]: Start difference. First operand 7321 states and 19373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:51,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:51,415 INFO L93 Difference]: Finished difference Result 8533 states and 22550 transitions. [2022-02-10 22:28:51,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:51,415 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:51,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:51,424 INFO L225 Difference]: With dead ends: 8533 [2022-02-10 22:28:51,424 INFO L226 Difference]: Without dead ends: 8053 [2022-02-10 22:28:51,424 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=338, Invalid=1144, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:28:51,425 INFO L934 BasicCegarLoop]: 239 mSDtfsCounter, 237 mSDsluCounter, 2218 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:51,425 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2416 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:51,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8053 states. [2022-02-10 22:28:51,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8053 to 7317. [2022-02-10 22:28:51,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:51,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-02-10 22:28:51,512 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-02-10 22:28:51,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:51,512 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-02-10 22:28:51,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:51,512 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-02-10 22:28:51,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:51,519 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:51,519 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:51,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504 [2022-02-10 22:28:51,519 INFO L402 AbstractCegarLoop]: === Iteration 506 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:51,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:51,519 INFO L85 PathProgramCache]: Analyzing trace with hash 995911634, now seen corresponding path program 204 times [2022-02-10 22:28:51,519 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:51,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629643565] [2022-02-10 22:28:51,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:51,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:51,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:51,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:51,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629643565] [2022-02-10 22:28:51,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629643565] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:51,633 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:51,633 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:51,633 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597609466] [2022-02-10 22:28:51,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:51,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:51,633 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:51,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:51,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:51,633 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:52,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:52,156 INFO L93 Difference]: Finished difference Result 8661 states and 22882 transitions. [2022-02-10 22:28:52,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:28:52,156 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:52,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:52,166 INFO L225 Difference]: With dead ends: 8661 [2022-02-10 22:28:52,166 INFO L226 Difference]: Without dead ends: 8141 [2022-02-10 22:28:52,166 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:28:52,166 INFO L934 BasicCegarLoop]: 244 mSDtfsCounter, 311 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:52,166 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 2476 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-02-10 22:28:52,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7313. [2022-02-10 22:28:52,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:52,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-02-10 22:28:52,249 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-02-10 22:28:52,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:52,250 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-02-10 22:28:52,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:52,250 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-02-10 22:28:52,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:52,256 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:52,256 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:52,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable505 [2022-02-10 22:28:52,256 INFO L402 AbstractCegarLoop]: === Iteration 507 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:52,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:52,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1068541358, now seen corresponding path program 205 times [2022-02-10 22:28:52,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:52,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980410023] [2022-02-10 22:28:52,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:52,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:52,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:52,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:52,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980410023] [2022-02-10 22:28:52,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980410023] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:52,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:52,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:52,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348598512] [2022-02-10 22:28:52,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:52,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:52,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:52,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:52,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:52,377 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:52,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:52,923 INFO L93 Difference]: Finished difference Result 8663 states and 22874 transitions. [2022-02-10 22:28:52,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:28:52,924 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:52,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:52,933 INFO L225 Difference]: With dead ends: 8663 [2022-02-10 22:28:52,933 INFO L226 Difference]: Without dead ends: 8141 [2022-02-10 22:28:52,934 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=449, Invalid=1357, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 22:28:52,934 INFO L934 BasicCegarLoop]: 248 mSDtfsCounter, 290 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:52,934 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2443 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:52,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-02-10 22:28:53,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7317. [2022-02-10 22:28:53,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.645981410606889) internal successors, (19358), 7316 states have internal predecessors, (19358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:53,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19358 transitions. [2022-02-10 22:28:53,017 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19358 transitions. Word has length 109 [2022-02-10 22:28:53,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:53,017 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19358 transitions. [2022-02-10 22:28:53,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:53,017 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19358 transitions. [2022-02-10 22:28:53,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:53,024 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:53,024 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:53,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable506 [2022-02-10 22:28:53,024 INFO L402 AbstractCegarLoop]: === Iteration 508 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:53,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:53,025 INFO L85 PathProgramCache]: Analyzing trace with hash -489373992, now seen corresponding path program 206 times [2022-02-10 22:28:53,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:53,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426296876] [2022-02-10 22:28:53,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:53,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:53,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:53,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:53,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426296876] [2022-02-10 22:28:53,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426296876] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:53,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:53,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:53,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278700538] [2022-02-10 22:28:53,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:53,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:53,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:53,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:53,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:53,143 INFO L87 Difference]: Start difference. First operand 7317 states and 19358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:53,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:53,580 INFO L93 Difference]: Finished difference Result 8515 states and 22488 transitions. [2022-02-10 22:28:53,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:53,580 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:53,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:53,590 INFO L225 Difference]: With dead ends: 8515 [2022-02-10 22:28:53,590 INFO L226 Difference]: Without dead ends: 8036 [2022-02-10 22:28:53,590 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:28:53,590 INFO L934 BasicCegarLoop]: 241 mSDtfsCounter, 219 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:53,591 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2374 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:53,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8036 states. [2022-02-10 22:28:53,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8036 to 7321. [2022-02-10 22:28:53,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6454918032786887) internal successors, (19365), 7320 states have internal predecessors, (19365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:53,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19365 transitions. [2022-02-10 22:28:53,679 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19365 transitions. Word has length 109 [2022-02-10 22:28:53,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:53,679 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19365 transitions. [2022-02-10 22:28:53,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:53,680 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19365 transitions. [2022-02-10 22:28:53,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:53,687 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:53,687 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:53,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable507 [2022-02-10 22:28:53,687 INFO L402 AbstractCegarLoop]: === Iteration 509 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:53,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:53,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1138149126, now seen corresponding path program 207 times [2022-02-10 22:28:53,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:53,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332799520] [2022-02-10 22:28:53,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:53,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:53,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:53,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:53,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332799520] [2022-02-10 22:28:53,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332799520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:53,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:53,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:53,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128870145] [2022-02-10 22:28:53,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:53,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:53,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:53,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:53,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:53,824 INFO L87 Difference]: Start difference. First operand 7321 states and 19365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:54,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:54,250 INFO L93 Difference]: Finished difference Result 8433 states and 22267 transitions. [2022-02-10 22:28:54,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:28:54,250 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:54,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:54,259 INFO L225 Difference]: With dead ends: 8433 [2022-02-10 22:28:54,259 INFO L226 Difference]: Without dead ends: 7941 [2022-02-10 22:28:54,260 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=320, Invalid=1086, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:28:54,260 INFO L934 BasicCegarLoop]: 236 mSDtfsCounter, 225 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:54,260 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 2396 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:54,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7941 states. [2022-02-10 22:28:54,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7941 to 7305. [2022-02-10 22:28:54,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646905805038335) internal successors, (19333), 7304 states have internal predecessors, (19333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:54,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19333 transitions. [2022-02-10 22:28:54,348 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19333 transitions. Word has length 109 [2022-02-10 22:28:54,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:54,348 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19333 transitions. [2022-02-10 22:28:54,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:54,348 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19333 transitions. [2022-02-10 22:28:54,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:54,355 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:54,356 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:54,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508 [2022-02-10 22:28:54,356 INFO L402 AbstractCegarLoop]: === Iteration 510 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:54,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:54,356 INFO L85 PathProgramCache]: Analyzing trace with hash 441409752, now seen corresponding path program 208 times [2022-02-10 22:28:54,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:54,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171508281] [2022-02-10 22:28:54,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:54,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:54,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:54,474 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:54,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171508281] [2022-02-10 22:28:54,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171508281] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:54,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:54,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:54,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434202499] [2022-02-10 22:28:54,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:54,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:54,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:54,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:54,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:54,475 INFO L87 Difference]: Start difference. First operand 7305 states and 19333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:54,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:54,925 INFO L93 Difference]: Finished difference Result 8471 states and 22375 transitions. [2022-02-10 22:28:54,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:28:54,925 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:54,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:54,935 INFO L225 Difference]: With dead ends: 8471 [2022-02-10 22:28:54,935 INFO L226 Difference]: Without dead ends: 7992 [2022-02-10 22:28:54,935 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=953, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:28:54,935 INFO L934 BasicCegarLoop]: 236 mSDtfsCounter, 219 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2687 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:54,935 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2687 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:54,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2022-02-10 22:28:55,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7321. [2022-02-10 22:28:55,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.646584699453552) internal successors, (19373), 7320 states have internal predecessors, (19373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:55,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19373 transitions. [2022-02-10 22:28:55,028 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19373 transitions. Word has length 109 [2022-02-10 22:28:55,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:55,028 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19373 transitions. [2022-02-10 22:28:55,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:55,028 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19373 transitions. [2022-02-10 22:28:55,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:55,037 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:55,037 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:55,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509 [2022-02-10 22:28:55,037 INFO L402 AbstractCegarLoop]: === Iteration 511 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:55,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:55,037 INFO L85 PathProgramCache]: Analyzing trace with hash 2068932870, now seen corresponding path program 209 times [2022-02-10 22:28:55,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:55,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333258716] [2022-02-10 22:28:55,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:55,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:55,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:55,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:55,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333258716] [2022-02-10 22:28:55,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333258716] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:55,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:55,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:55,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337025951] [2022-02-10 22:28:55,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:55,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:55,164 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:55,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:55,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:55,164 INFO L87 Difference]: Start difference. First operand 7321 states and 19373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:55,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:55,635 INFO L93 Difference]: Finished difference Result 8429 states and 22264 transitions. [2022-02-10 22:28:55,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:55,635 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:55,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:55,645 INFO L225 Difference]: With dead ends: 8429 [2022-02-10 22:28:55,645 INFO L226 Difference]: Without dead ends: 7949 [2022-02-10 22:28:55,645 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:28:55,645 INFO L934 BasicCegarLoop]: 237 mSDtfsCounter, 208 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 2672 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:55,645 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 2672 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:55,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7949 states. [2022-02-10 22:28:55,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7949 to 7317. [2022-02-10 22:28:55,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:55,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-02-10 22:28:55,737 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-02-10 22:28:55,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:55,737 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-02-10 22:28:55,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:55,737 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-02-10 22:28:55,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:55,744 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:55,744 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:55,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable510 [2022-02-10 22:28:55,745 INFO L402 AbstractCegarLoop]: === Iteration 512 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:55,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:55,745 INFO L85 PathProgramCache]: Analyzing trace with hash 947875530, now seen corresponding path program 210 times [2022-02-10 22:28:55,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:55,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789852476] [2022-02-10 22:28:55,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:55,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:55,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:55,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:55,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789852476] [2022-02-10 22:28:55,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789852476] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:55,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:55,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:55,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927745411] [2022-02-10 22:28:55,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:55,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:55,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:55,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:55,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:55,866 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:56,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:56,398 INFO L93 Difference]: Finished difference Result 8537 states and 22541 transitions. [2022-02-10 22:28:56,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:28:56,398 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:56,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:56,408 INFO L225 Difference]: With dead ends: 8537 [2022-02-10 22:28:56,408 INFO L226 Difference]: Without dead ends: 8017 [2022-02-10 22:28:56,408 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=470, Invalid=1510, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:28:56,408 INFO L934 BasicCegarLoop]: 242 mSDtfsCounter, 283 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:56,408 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 2728 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:56,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2022-02-10 22:28:56,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 7313. [2022-02-10 22:28:56,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:56,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-02-10 22:28:56,495 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-02-10 22:28:56,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:56,496 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-02-10 22:28:56,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:56,496 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-02-10 22:28:56,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:56,503 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:56,503 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:56,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable511 [2022-02-10 22:28:56,503 INFO L402 AbstractCegarLoop]: === Iteration 513 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:56,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:56,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1020505254, now seen corresponding path program 211 times [2022-02-10 22:28:56,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:56,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785542775] [2022-02-10 22:28:56,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:56,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:56,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:56,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:56,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785542775] [2022-02-10 22:28:56,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785542775] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:56,624 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:56,624 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:56,624 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108793408] [2022-02-10 22:28:56,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:56,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:56,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:56,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:56,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:56,625 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:57,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:57,192 INFO L93 Difference]: Finished difference Result 8635 states and 22797 transitions. [2022-02-10 22:28:57,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:28:57,192 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:57,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:57,202 INFO L225 Difference]: With dead ends: 8635 [2022-02-10 22:28:57,202 INFO L226 Difference]: Without dead ends: 8113 [2022-02-10 22:28:57,202 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=460, Invalid=1432, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:28:57,202 INFO L934 BasicCegarLoop]: 243 mSDtfsCounter, 312 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:57,202 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 2409 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:57,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8113 states. [2022-02-10 22:28:57,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8113 to 7317. [2022-02-10 22:28:57,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.645981410606889) internal successors, (19358), 7316 states have internal predecessors, (19358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:57,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19358 transitions. [2022-02-10 22:28:57,284 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19358 transitions. Word has length 109 [2022-02-10 22:28:57,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:57,284 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19358 transitions. [2022-02-10 22:28:57,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:57,284 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19358 transitions. [2022-02-10 22:28:57,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:57,291 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:57,291 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:57,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable512 [2022-02-10 22:28:57,291 INFO L402 AbstractCegarLoop]: === Iteration 514 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:57,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:57,291 INFO L85 PathProgramCache]: Analyzing trace with hash -537410096, now seen corresponding path program 212 times [2022-02-10 22:28:57,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:57,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011377325] [2022-02-10 22:28:57,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:57,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:57,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:57,412 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:57,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011377325] [2022-02-10 22:28:57,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011377325] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:57,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:57,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:57,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054778861] [2022-02-10 22:28:57,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:57,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:57,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:57,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:57,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:57,413 INFO L87 Difference]: Start difference. First operand 7317 states and 19358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:57,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:57,855 INFO L93 Difference]: Finished difference Result 8471 states and 22367 transitions. [2022-02-10 22:28:57,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:28:57,855 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:57,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:57,864 INFO L225 Difference]: With dead ends: 8471 [2022-02-10 22:28:57,864 INFO L226 Difference]: Without dead ends: 7992 [2022-02-10 22:28:57,864 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=325, Invalid=1007, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:28:57,865 INFO L934 BasicCegarLoop]: 235 mSDtfsCounter, 251 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:57,865 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 2387 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:57,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2022-02-10 22:28:57,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7321. [2022-02-10 22:28:57,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6454918032786887) internal successors, (19365), 7320 states have internal predecessors, (19365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:57,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19365 transitions. [2022-02-10 22:28:57,947 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19365 transitions. Word has length 109 [2022-02-10 22:28:57,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:57,947 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19365 transitions. [2022-02-10 22:28:57,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:57,947 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19365 transitions. [2022-02-10 22:28:57,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:57,954 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:57,954 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:57,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable513 [2022-02-10 22:28:57,954 INFO L402 AbstractCegarLoop]: === Iteration 515 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:57,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:57,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1090113022, now seen corresponding path program 213 times [2022-02-10 22:28:57,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:57,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66774684] [2022-02-10 22:28:57,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:57,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:58,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:58,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66774684] [2022-02-10 22:28:58,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66774684] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:58,071 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:58,071 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:58,071 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014237430] [2022-02-10 22:28:58,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:58,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:58,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:58,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:58,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:58,071 INFO L87 Difference]: Start difference. First operand 7321 states and 19365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:58,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:58,517 INFO L93 Difference]: Finished difference Result 8405 states and 22190 transitions. [2022-02-10 22:28:58,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:28:58,518 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:58,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:58,528 INFO L225 Difference]: With dead ends: 8405 [2022-02-10 22:28:58,528 INFO L226 Difference]: Without dead ends: 7917 [2022-02-10 22:28:58,528 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1081, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:28:58,528 INFO L934 BasicCegarLoop]: 229 mSDtfsCounter, 220 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:58,528 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2630 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:58,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-02-10 22:28:58,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7309. [2022-02-10 22:28:58,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:58,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-02-10 22:28:58,611 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-02-10 22:28:58,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:58,611 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-02-10 22:28:58,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:58,611 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-02-10 22:28:58,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:58,619 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:58,619 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:58,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable514 [2022-02-10 22:28:58,619 INFO L402 AbstractCegarLoop]: === Iteration 516 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:58,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:58,620 INFO L85 PathProgramCache]: Analyzing trace with hash -192231078, now seen corresponding path program 214 times [2022-02-10 22:28:58,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:58,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795992061] [2022-02-10 22:28:58,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:58,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:58,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:58,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:58,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795992061] [2022-02-10 22:28:58,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795992061] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:58,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:58,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:58,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419844661] [2022-02-10 22:28:58,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:58,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:58,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:58,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:58,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:58,737 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:59,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:59,404 INFO L93 Difference]: Finished difference Result 8628 states and 22759 transitions. [2022-02-10 22:28:59,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-10 22:28:59,405 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:28:59,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:59,414 INFO L225 Difference]: With dead ends: 8628 [2022-02-10 22:28:59,414 INFO L226 Difference]: Without dead ends: 8063 [2022-02-10 22:28:59,415 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=611, Invalid=1839, Unknown=0, NotChecked=0, Total=2450 [2022-02-10 22:28:59,415 INFO L934 BasicCegarLoop]: 248 mSDtfsCounter, 366 mSDsluCounter, 2655 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 2825 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:59,415 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 2825 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:28:59,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8063 states. [2022-02-10 22:28:59,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8063 to 7313. [2022-02-10 22:28:59,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6459245076586435) internal successors, (19347), 7312 states have internal predecessors, (19347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:59,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19347 transitions. [2022-02-10 22:28:59,499 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19347 transitions. Word has length 109 [2022-02-10 22:28:59,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:59,499 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19347 transitions. [2022-02-10 22:28:59,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:59,499 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19347 transitions. [2022-02-10 22:28:59,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:28:59,506 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:59,506 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:59,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable515 [2022-02-10 22:28:59,506 INFO L402 AbstractCegarLoop]: === Iteration 517 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:59,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:59,506 INFO L85 PathProgramCache]: Analyzing trace with hash 672199984, now seen corresponding path program 215 times [2022-02-10 22:28:59,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:59,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957837669] [2022-02-10 22:28:59,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:59,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:59,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:59,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:59,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957837669] [2022-02-10 22:28:59,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957837669] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:59,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:59,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:28:59,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031270918] [2022-02-10 22:28:59,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:59,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:28:59,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:59,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:28:59,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:28:59,624 INFO L87 Difference]: Start difference. First operand 7313 states and 19347 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:00,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:00,211 INFO L93 Difference]: Finished difference Result 8515 states and 22463 transitions. [2022-02-10 22:29:00,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:29:00,211 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:00,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:00,220 INFO L225 Difference]: With dead ends: 8515 [2022-02-10 22:29:00,220 INFO L226 Difference]: Without dead ends: 7993 [2022-02-10 22:29:00,220 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1508, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:29:00,220 INFO L934 BasicCegarLoop]: 243 mSDtfsCounter, 305 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:00,220 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 2769 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:00,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7993 states. [2022-02-10 22:29:00,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7993 to 7317. [2022-02-10 22:29:00,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6454346637506836) internal successors, (19354), 7316 states have internal predecessors, (19354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:00,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19354 transitions. [2022-02-10 22:29:00,309 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19354 transitions. Word has length 109 [2022-02-10 22:29:00,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:00,309 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19354 transitions. [2022-02-10 22:29:00,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:00,309 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19354 transitions. [2022-02-10 22:29:00,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:00,316 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:00,316 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:00,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable516 [2022-02-10 22:29:00,316 INFO L402 AbstractCegarLoop]: === Iteration 518 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:00,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:00,316 INFO L85 PathProgramCache]: Analyzing trace with hash -885715366, now seen corresponding path program 216 times [2022-02-10 22:29:00,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:00,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031369257] [2022-02-10 22:29:00,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:00,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:00,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:00,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:00,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031369257] [2022-02-10 22:29:00,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031369257] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:00,433 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:00,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:00,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817130115] [2022-02-10 22:29:00,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:00,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:00,434 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:00,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:00,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:00,434 INFO L87 Difference]: Start difference. First operand 7317 states and 19354 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:00,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:00,868 INFO L93 Difference]: Finished difference Result 8375 states and 22099 transitions. [2022-02-10 22:29:00,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:29:00,869 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:00,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:00,878 INFO L225 Difference]: With dead ends: 8375 [2022-02-10 22:29:00,879 INFO L226 Difference]: Without dead ends: 7896 [2022-02-10 22:29:00,879 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:29:00,879 INFO L934 BasicCegarLoop]: 231 mSDtfsCounter, 240 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:00,879 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 2658 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:00,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7896 states. [2022-02-10 22:29:00,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7896 to 7321. [2022-02-10 22:29:00,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6449453551912567) internal successors, (19361), 7320 states have internal predecessors, (19361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:00,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19361 transitions. [2022-02-10 22:29:00,971 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19361 transitions. Word has length 109 [2022-02-10 22:29:00,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:00,971 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19361 transitions. [2022-02-10 22:29:00,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:00,971 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19361 transitions. [2022-02-10 22:29:00,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:00,978 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:00,978 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:00,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517 [2022-02-10 22:29:00,978 INFO L402 AbstractCegarLoop]: === Iteration 519 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:00,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:00,979 INFO L85 PathProgramCache]: Analyzing trace with hash 741807752, now seen corresponding path program 217 times [2022-02-10 22:29:00,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:00,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945769949] [2022-02-10 22:29:00,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:00,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:01,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:01,099 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:01,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945769949] [2022-02-10 22:29:01,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945769949] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:01,099 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:01,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:01,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791725985] [2022-02-10 22:29:01,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:01,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:01,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:01,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:01,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:01,099 INFO L87 Difference]: Start difference. First operand 7321 states and 19361 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:01,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:01,502 INFO L93 Difference]: Finished difference Result 8265 states and 21801 transitions. [2022-02-10 22:29:01,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:29:01,503 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:01,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:01,513 INFO L225 Difference]: With dead ends: 8265 [2022-02-10 22:29:01,513 INFO L226 Difference]: Without dead ends: 7765 [2022-02-10 22:29:01,514 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:29:01,514 INFO L934 BasicCegarLoop]: 225 mSDtfsCounter, 223 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 2327 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:01,514 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 2327 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:01,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7765 states. [2022-02-10 22:29:01,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7765 to 7297. [2022-02-10 22:29:01,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.64734100877193) internal successors, (19315), 7296 states have internal predecessors, (19315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:01,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19315 transitions. [2022-02-10 22:29:01,600 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19315 transitions. Word has length 109 [2022-02-10 22:29:01,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:01,600 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19315 transitions. [2022-02-10 22:29:01,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:01,600 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19315 transitions. [2022-02-10 22:29:01,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:01,607 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:01,607 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:01,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable518 [2022-02-10 22:29:01,608 INFO L402 AbstractCegarLoop]: === Iteration 520 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:01,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:01,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1547592560, now seen corresponding path program 218 times [2022-02-10 22:29:01,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:01,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542323983] [2022-02-10 22:29:01,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:01,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:01,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:01,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:01,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542323983] [2022-02-10 22:29:01,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542323983] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:01,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:01,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:01,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848071200] [2022-02-10 22:29:01,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:01,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:01,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:01,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:01,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:01,732 INFO L87 Difference]: Start difference. First operand 7297 states and 19315 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:02,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:02,128 INFO L93 Difference]: Finished difference Result 8303 states and 21917 transitions. [2022-02-10 22:29:02,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:29:02,129 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:02,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:02,138 INFO L225 Difference]: With dead ends: 8303 [2022-02-10 22:29:02,139 INFO L226 Difference]: Without dead ends: 7824 [2022-02-10 22:29:02,139 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=900, Unknown=0, NotChecked=0, Total=1190 [2022-02-10 22:29:02,139 INFO L934 BasicCegarLoop]: 231 mSDtfsCounter, 246 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2114 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:02,139 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2114 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:02,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7824 states. [2022-02-10 22:29:02,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7824 to 7317. [2022-02-10 22:29:02,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:02,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-02-10 22:29:02,227 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-02-10 22:29:02,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:02,227 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-02-10 22:29:02,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:02,227 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-02-10 22:29:02,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:02,234 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:02,234 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:02,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519 [2022-02-10 22:29:02,235 INFO L402 AbstractCegarLoop]: === Iteration 521 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:02,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:02,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1119851618, now seen corresponding path program 219 times [2022-02-10 22:29:02,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:02,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054260854] [2022-02-10 22:29:02,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:02,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:02,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:02,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:02,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054260854] [2022-02-10 22:29:02,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054260854] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:02,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:02,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:02,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496741157] [2022-02-10 22:29:02,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:02,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:02,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:02,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:02,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:02,357 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:02,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:02,811 INFO L93 Difference]: Finished difference Result 8269 states and 21828 transitions. [2022-02-10 22:29:02,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:29:02,812 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:02,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:02,821 INFO L225 Difference]: With dead ends: 8269 [2022-02-10 22:29:02,821 INFO L226 Difference]: Without dead ends: 7789 [2022-02-10 22:29:02,821 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-02-10 22:29:02,821 INFO L934 BasicCegarLoop]: 233 mSDtfsCounter, 205 mSDsluCounter, 2453 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2639 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:02,821 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 2639 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:02,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7789 states. [2022-02-10 22:29:02,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7789 to 7313. [2022-02-10 22:29:02,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:02,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-02-10 22:29:02,907 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-02-10 22:29:02,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:02,907 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-02-10 22:29:02,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:02,907 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-02-10 22:29:02,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:02,914 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:02,914 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:02,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable520 [2022-02-10 22:29:02,914 INFO L402 AbstractCegarLoop]: === Iteration 522 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:02,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:02,914 INFO L85 PathProgramCache]: Analyzing trace with hash 2054058338, now seen corresponding path program 220 times [2022-02-10 22:29:02,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:02,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261275556] [2022-02-10 22:29:02,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:02,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:03,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:03,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:03,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261275556] [2022-02-10 22:29:03,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261275556] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:03,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:03,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:03,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038489169] [2022-02-10 22:29:03,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:03,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:03,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:03,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:03,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:03,033 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:03,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:03,599 INFO L93 Difference]: Finished difference Result 8305 states and 21923 transitions. [2022-02-10 22:29:03,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:29:03,600 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:03,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:03,608 INFO L225 Difference]: With dead ends: 8305 [2022-02-10 22:29:03,608 INFO L226 Difference]: Without dead ends: 7785 [2022-02-10 22:29:03,609 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=502, Invalid=1660, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:29:03,609 INFO L934 BasicCegarLoop]: 242 mSDtfsCounter, 296 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:03,609 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 2585 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:03,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7785 states. [2022-02-10 22:29:03,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7785 to 7309. [2022-02-10 22:29:03,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6469622331691296) internal successors, (19344), 7308 states have internal predecessors, (19344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:03,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19344 transitions. [2022-02-10 22:29:03,689 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19344 transitions. Word has length 109 [2022-02-10 22:29:03,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:03,689 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19344 transitions. [2022-02-10 22:29:03,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:03,690 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19344 transitions. [2022-02-10 22:29:03,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:03,696 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:03,696 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:03,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable521 [2022-02-10 22:29:03,696 INFO L402 AbstractCegarLoop]: === Iteration 523 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:03,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:03,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1528922802, now seen corresponding path program 221 times [2022-02-10 22:29:03,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:03,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31489466] [2022-02-10 22:29:03,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:03,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:03,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:03,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:03,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31489466] [2022-02-10 22:29:03,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31489466] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:03,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:03,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:03,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751059987] [2022-02-10 22:29:03,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:03,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:03,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:03,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:03,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:03,817 INFO L87 Difference]: Start difference. First operand 7309 states and 19344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:04,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:04,429 INFO L93 Difference]: Finished difference Result 8281 states and 21857 transitions. [2022-02-10 22:29:04,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-10 22:29:04,429 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:04,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:04,438 INFO L225 Difference]: With dead ends: 8281 [2022-02-10 22:29:04,438 INFO L226 Difference]: Without dead ends: 7721 [2022-02-10 22:29:04,438 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1998, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:29:04,438 INFO L934 BasicCegarLoop]: 242 mSDtfsCounter, 342 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:04,438 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 2704 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:04,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7721 states. [2022-02-10 22:29:04,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7721 to 7305. [2022-02-10 22:29:04,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646905805038335) internal successors, (19333), 7304 states have internal predecessors, (19333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:04,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19333 transitions. [2022-02-10 22:29:04,520 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19333 transitions. Word has length 109 [2022-02-10 22:29:04,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:04,521 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19333 transitions. [2022-02-10 22:29:04,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:04,521 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19333 transitions. [2022-02-10 22:29:04,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:04,527 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:04,527 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:04,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable522 [2022-02-10 22:29:04,527 INFO L402 AbstractCegarLoop]: === Iteration 524 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:04,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:04,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1338609398, now seen corresponding path program 222 times [2022-02-10 22:29:04,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:04,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065682236] [2022-02-10 22:29:04,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:04,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:04,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:04,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:04,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065682236] [2022-02-10 22:29:04,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065682236] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:04,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:04,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:04,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690213560] [2022-02-10 22:29:04,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:04,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:04,655 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:04,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:04,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:04,656 INFO L87 Difference]: Start difference. First operand 7305 states and 19333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:05,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:05,069 INFO L93 Difference]: Finished difference Result 8351 states and 22049 transitions. [2022-02-10 22:29:05,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:29:05,070 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:05,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:05,078 INFO L225 Difference]: With dead ends: 8351 [2022-02-10 22:29:05,078 INFO L226 Difference]: Without dead ends: 7872 [2022-02-10 22:29:05,079 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:29:05,079 INFO L934 BasicCegarLoop]: 229 mSDtfsCounter, 276 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:05,079 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 2100 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:05,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7872 states. [2022-02-10 22:29:05,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7872 to 7317. [2022-02-10 22:29:05,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:05,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-02-10 22:29:05,160 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-02-10 22:29:05,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:05,160 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-02-10 22:29:05,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:05,160 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-02-10 22:29:05,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:05,166 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:05,166 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:05,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable523 [2022-02-10 22:29:05,166 INFO L402 AbstractCegarLoop]: === Iteration 525 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:05,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:05,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1328834780, now seen corresponding path program 223 times [2022-02-10 22:29:05,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:05,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513058101] [2022-02-10 22:29:05,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:05,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:05,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:05,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513058101] [2022-02-10 22:29:05,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513058101] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:05,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:05,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:05,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860592268] [2022-02-10 22:29:05,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:05,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:05,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:05,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:05,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:05,311 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:05,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:05,743 INFO L93 Difference]: Finished difference Result 8309 states and 21938 transitions. [2022-02-10 22:29:05,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:29:05,743 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:05,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:05,752 INFO L225 Difference]: With dead ends: 8309 [2022-02-10 22:29:05,753 INFO L226 Difference]: Without dead ends: 7829 [2022-02-10 22:29:05,753 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:29:05,753 INFO L934 BasicCegarLoop]: 230 mSDtfsCounter, 263 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2474 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:05,753 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 2474 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:05,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7829 states. [2022-02-10 22:29:05,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7829 to 7313. [2022-02-10 22:29:05,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:05,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-02-10 22:29:05,843 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-02-10 22:29:05,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:05,843 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-02-10 22:29:05,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:05,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-02-10 22:29:05,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:05,851 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:05,851 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:05,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable524 [2022-02-10 22:29:05,851 INFO L402 AbstractCegarLoop]: === Iteration 526 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:05,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:05,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1845075176, now seen corresponding path program 224 times [2022-02-10 22:29:05,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:05,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818553338] [2022-02-10 22:29:05,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:05,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:05,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:05,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:05,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818553338] [2022-02-10 22:29:05,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818553338] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:05,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:05,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:05,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168789426] [2022-02-10 22:29:05,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:05,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:05,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:05,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:05,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:05,972 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:06,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:06,500 INFO L93 Difference]: Finished difference Result 8437 states and 22270 transitions. [2022-02-10 22:29:06,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:29:06,500 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:06,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:06,510 INFO L225 Difference]: With dead ends: 8437 [2022-02-10 22:29:06,510 INFO L226 Difference]: Without dead ends: 7917 [2022-02-10 22:29:06,511 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:29:06,511 INFO L934 BasicCegarLoop]: 230 mSDtfsCounter, 310 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:06,511 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 2618 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:06,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-02-10 22:29:06,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7309. [2022-02-10 22:29:06,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:06,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-02-10 22:29:06,598 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-02-10 22:29:06,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:06,598 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-02-10 22:29:06,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:06,599 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-02-10 22:29:06,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:06,606 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:06,606 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:06,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable525 [2022-02-10 22:29:06,606 INFO L402 AbstractCegarLoop]: === Iteration 527 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:06,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:06,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1917704900, now seen corresponding path program 225 times [2022-02-10 22:29:06,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:06,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23120631] [2022-02-10 22:29:06,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:06,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:06,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:06,727 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:06,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23120631] [2022-02-10 22:29:06,727 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23120631] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:06,727 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:06,727 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:06,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829176047] [2022-02-10 22:29:06,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:06,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:06,728 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:06,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:06,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:06,728 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:07,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:07,255 INFO L93 Difference]: Finished difference Result 8439 states and 22262 transitions. [2022-02-10 22:29:07,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:29:07,255 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:07,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:07,264 INFO L225 Difference]: With dead ends: 8439 [2022-02-10 22:29:07,265 INFO L226 Difference]: Without dead ends: 7917 [2022-02-10 22:29:07,265 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 22:29:07,265 INFO L934 BasicCegarLoop]: 239 mSDtfsCounter, 292 mSDsluCounter, 2145 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:07,265 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 2328 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:07,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-02-10 22:29:07,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7313. [2022-02-10 22:29:07,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6459245076586435) internal successors, (19347), 7312 states have internal predecessors, (19347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:07,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19347 transitions. [2022-02-10 22:29:07,353 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19347 transitions. Word has length 109 [2022-02-10 22:29:07,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:07,353 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19347 transitions. [2022-02-10 22:29:07,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:07,353 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19347 transitions. [2022-02-10 22:29:07,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:07,360 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:07,360 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:07,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable526 [2022-02-10 22:29:07,360 INFO L402 AbstractCegarLoop]: === Iteration 528 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:07,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:07,360 INFO L85 PathProgramCache]: Analyzing trace with hash 359789550, now seen corresponding path program 226 times [2022-02-10 22:29:07,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:07,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634973037] [2022-02-10 22:29:07,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:07,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:07,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:07,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:07,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634973037] [2022-02-10 22:29:07,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634973037] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:07,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:07,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:07,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147137810] [2022-02-10 22:29:07,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:07,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:07,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:07,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:07,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:07,483 INFO L87 Difference]: Start difference. First operand 7313 states and 19347 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:07,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:07,908 INFO L93 Difference]: Finished difference Result 8291 states and 21876 transitions. [2022-02-10 22:29:07,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:29:07,908 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:07,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:07,918 INFO L225 Difference]: With dead ends: 8291 [2022-02-10 22:29:07,918 INFO L226 Difference]: Without dead ends: 7812 [2022-02-10 22:29:07,918 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=324, Invalid=1008, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:29:07,918 INFO L934 BasicCegarLoop]: 232 mSDtfsCounter, 228 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:07,918 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 2256 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:07,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7812 states. [2022-02-10 22:29:07,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7812 to 7317. [2022-02-10 22:29:07,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6454346637506836) internal successors, (19354), 7316 states have internal predecessors, (19354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:08,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19354 transitions. [2022-02-10 22:29:08,004 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19354 transitions. Word has length 109 [2022-02-10 22:29:08,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:08,004 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19354 transitions. [2022-02-10 22:29:08,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:08,004 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19354 transitions. [2022-02-10 22:29:08,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:08,012 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:08,012 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:08,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable527 [2022-02-10 22:29:08,012 INFO L402 AbstractCegarLoop]: === Iteration 529 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:08,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:08,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1987312668, now seen corresponding path program 227 times [2022-02-10 22:29:08,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:08,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127410310] [2022-02-10 22:29:08,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:08,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:08,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:08,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:08,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127410310] [2022-02-10 22:29:08,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127410310] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:08,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:08,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:08,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069564443] [2022-02-10 22:29:08,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:08,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:08,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:08,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:08,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:08,135 INFO L87 Difference]: Start difference. First operand 7317 states and 19354 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:08,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:08,564 INFO L93 Difference]: Finished difference Result 8209 states and 21655 transitions. [2022-02-10 22:29:08,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:29:08,565 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:08,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:08,573 INFO L225 Difference]: With dead ends: 8209 [2022-02-10 22:29:08,573 INFO L226 Difference]: Without dead ends: 7717 [2022-02-10 22:29:08,574 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:29:08,574 INFO L934 BasicCegarLoop]: 227 mSDtfsCounter, 235 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:08,574 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2452 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:08,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7717 states. [2022-02-10 22:29:08,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7717 to 7301. [2022-02-10 22:29:08,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7301 states, 7300 states have (on average 2.646849315068493) internal successors, (19322), 7300 states have internal predecessors, (19322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:08,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 19322 transitions. [2022-02-10 22:29:08,663 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 19322 transitions. Word has length 109 [2022-02-10 22:29:08,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:08,663 INFO L470 AbstractCegarLoop]: Abstraction has 7301 states and 19322 transitions. [2022-02-10 22:29:08,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:08,663 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 19322 transitions. [2022-02-10 22:29:08,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:08,670 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:08,670 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:08,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528 [2022-02-10 22:29:08,670 INFO L402 AbstractCegarLoop]: === Iteration 530 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:08,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:08,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1290573294, now seen corresponding path program 228 times [2022-02-10 22:29:08,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:08,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868370598] [2022-02-10 22:29:08,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:08,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:08,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:08,793 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868370598] [2022-02-10 22:29:08,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868370598] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:08,793 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:08,793 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:08,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889524102] [2022-02-10 22:29:08,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:08,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:08,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:08,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:08,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:08,794 INFO L87 Difference]: Start difference. First operand 7301 states and 19322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:09,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:09,187 INFO L93 Difference]: Finished difference Result 8387 states and 22148 transitions. [2022-02-10 22:29:09,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:29:09,187 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:09,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:09,197 INFO L225 Difference]: With dead ends: 8387 [2022-02-10 22:29:09,198 INFO L226 Difference]: Without dead ends: 7908 [2022-02-10 22:29:09,198 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=301, Invalid=959, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:29:09,198 INFO L934 BasicCegarLoop]: 227 mSDtfsCounter, 282 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:09,198 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 2090 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:09,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2022-02-10 22:29:09,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 7317. [2022-02-10 22:29:09,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:09,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-02-10 22:29:09,283 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-02-10 22:29:09,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:09,283 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-02-10 22:29:09,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:09,284 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-02-10 22:29:09,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:09,290 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:09,290 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:09,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable529 [2022-02-10 22:29:09,290 INFO L402 AbstractCegarLoop]: === Iteration 531 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:09,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:09,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1376870884, now seen corresponding path program 229 times [2022-02-10 22:29:09,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:09,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037156252] [2022-02-10 22:29:09,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:09,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:09,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:09,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:09,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037156252] [2022-02-10 22:29:09,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037156252] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:09,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:09,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:09,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861361528] [2022-02-10 22:29:09,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:09,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:09,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:09,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:09,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:09,409 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:09,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:09,848 INFO L93 Difference]: Finished difference Result 8345 states and 22037 transitions. [2022-02-10 22:29:09,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:29:09,848 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:09,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:09,858 INFO L225 Difference]: With dead ends: 8345 [2022-02-10 22:29:09,858 INFO L226 Difference]: Without dead ends: 7865 [2022-02-10 22:29:09,858 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:29:09,858 INFO L934 BasicCegarLoop]: 228 mSDtfsCounter, 263 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:09,858 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 2458 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:09,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7865 states. [2022-02-10 22:29:09,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7865 to 7313. [2022-02-10 22:29:09,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:09,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-02-10 22:29:09,948 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-02-10 22:29:09,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:09,948 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-02-10 22:29:09,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:09,948 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-02-10 22:29:09,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:09,955 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:09,955 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:09,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable530 [2022-02-10 22:29:09,956 INFO L402 AbstractCegarLoop]: === Iteration 532 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:09,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:09,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1797039072, now seen corresponding path program 230 times [2022-02-10 22:29:09,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:09,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167053296] [2022-02-10 22:29:09,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:09,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:10,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:10,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:10,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167053296] [2022-02-10 22:29:10,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167053296] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:10,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:10,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:10,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205357158] [2022-02-10 22:29:10,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:10,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:10,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:10,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:10,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:10,078 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:10,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:10,598 INFO L93 Difference]: Finished difference Result 8453 states and 22314 transitions. [2022-02-10 22:29:10,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:29:10,598 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:10,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:10,608 INFO L225 Difference]: With dead ends: 8453 [2022-02-10 22:29:10,609 INFO L226 Difference]: Without dead ends: 7933 [2022-02-10 22:29:10,609 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=479, Invalid=1501, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:29:10,609 INFO L934 BasicCegarLoop]: 228 mSDtfsCounter, 306 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:10,609 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 2602 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:10,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2022-02-10 22:29:10,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 7309. [2022-02-10 22:29:10,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:10,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-02-10 22:29:10,691 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-02-10 22:29:10,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:10,692 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-02-10 22:29:10,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:10,692 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-02-10 22:29:10,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:10,698 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:10,698 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:10,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable531 [2022-02-10 22:29:10,698 INFO L402 AbstractCegarLoop]: === Iteration 533 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:10,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:10,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1869668796, now seen corresponding path program 231 times [2022-02-10 22:29:10,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:10,699 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120196602] [2022-02-10 22:29:10,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:10,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:10,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:10,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:10,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120196602] [2022-02-10 22:29:10,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120196602] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:10,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:10,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:10,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316978185] [2022-02-10 22:29:10,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:10,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:10,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:10,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:10,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:10,843 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:11,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:11,423 INFO L93 Difference]: Finished difference Result 8551 states and 22570 transitions. [2022-02-10 22:29:11,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:29:11,424 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:11,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:11,433 INFO L225 Difference]: With dead ends: 8551 [2022-02-10 22:29:11,433 INFO L226 Difference]: Without dead ends: 8029 [2022-02-10 22:29:11,434 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=449, Invalid=1443, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:29:11,434 INFO L934 BasicCegarLoop]: 240 mSDtfsCounter, 302 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:11,434 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 2738 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:11,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8029 states. [2022-02-10 22:29:11,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8029 to 7313. [2022-02-10 22:29:11,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6459245076586435) internal successors, (19347), 7312 states have internal predecessors, (19347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:11,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19347 transitions. [2022-02-10 22:29:11,518 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19347 transitions. Word has length 109 [2022-02-10 22:29:11,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:11,518 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19347 transitions. [2022-02-10 22:29:11,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:11,518 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19347 transitions. [2022-02-10 22:29:11,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:11,525 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:11,525 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:11,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable532 [2022-02-10 22:29:11,525 INFO L402 AbstractCegarLoop]: === Iteration 534 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:11,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:11,525 INFO L85 PathProgramCache]: Analyzing trace with hash 311753446, now seen corresponding path program 232 times [2022-02-10 22:29:11,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:11,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32095615] [2022-02-10 22:29:11,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:11,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:11,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:11,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:11,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32095615] [2022-02-10 22:29:11,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32095615] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:11,648 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:11,648 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:11,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970505933] [2022-02-10 22:29:11,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:11,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:11,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:11,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:11,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:11,648 INFO L87 Difference]: Start difference. First operand 7313 states and 19347 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:12,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:12,082 INFO L93 Difference]: Finished difference Result 8387 states and 22140 transitions. [2022-02-10 22:29:12,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:29:12,082 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:12,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:12,091 INFO L225 Difference]: With dead ends: 8387 [2022-02-10 22:29:12,091 INFO L226 Difference]: Without dead ends: 7908 [2022-02-10 22:29:12,092 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:29:12,092 INFO L934 BasicCegarLoop]: 232 mSDtfsCounter, 237 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2448 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:12,092 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2448 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:12,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2022-02-10 22:29:12,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 7317. [2022-02-10 22:29:12,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6454346637506836) internal successors, (19354), 7316 states have internal predecessors, (19354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:12,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19354 transitions. [2022-02-10 22:29:12,183 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19354 transitions. Word has length 109 [2022-02-10 22:29:12,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:12,183 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19354 transitions. [2022-02-10 22:29:12,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:12,183 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19354 transitions. [2022-02-10 22:29:12,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:12,190 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:12,190 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:12,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2022-02-10 22:29:12,190 INFO L402 AbstractCegarLoop]: === Iteration 535 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:12,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:12,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1939276564, now seen corresponding path program 233 times [2022-02-10 22:29:12,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:12,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919246162] [2022-02-10 22:29:12,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:12,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:12,315 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:12,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919246162] [2022-02-10 22:29:12,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919246162] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:12,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:12,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:12,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848551256] [2022-02-10 22:29:12,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:12,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:12,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:12,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:12,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:12,316 INFO L87 Difference]: Start difference. First operand 7317 states and 19354 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:12,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:12,769 INFO L93 Difference]: Finished difference Result 8321 states and 21963 transitions. [2022-02-10 22:29:12,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:29:12,769 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:12,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:12,778 INFO L225 Difference]: With dead ends: 8321 [2022-02-10 22:29:12,778 INFO L226 Difference]: Without dead ends: 7833 [2022-02-10 22:29:12,778 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:29:12,778 INFO L934 BasicCegarLoop]: 226 mSDtfsCounter, 215 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 2588 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:12,778 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 2588 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:12,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7833 states. [2022-02-10 22:29:12,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7833 to 7305. [2022-02-10 22:29:12,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646358159912377) internal successors, (19329), 7304 states have internal predecessors, (19329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:12,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19329 transitions. [2022-02-10 22:29:12,858 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19329 transitions. Word has length 109 [2022-02-10 22:29:12,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:12,858 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19329 transitions. [2022-02-10 22:29:12,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:12,858 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19329 transitions. [2022-02-10 22:29:12,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:12,865 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:12,865 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:12,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534 [2022-02-10 22:29:12,865 INFO L402 AbstractCegarLoop]: === Iteration 536 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:12,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:12,865 INFO L85 PathProgramCache]: Analyzing trace with hash 656932464, now seen corresponding path program 234 times [2022-02-10 22:29:12,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:12,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778976529] [2022-02-10 22:29:12,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:12,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:12,986 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:12,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778976529] [2022-02-10 22:29:12,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778976529] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:12,986 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:12,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:12,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66431786] [2022-02-10 22:29:12,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:12,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:12,987 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:12,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:12,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:12,987 INFO L87 Difference]: Start difference. First operand 7305 states and 19329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:13,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:13,650 INFO L93 Difference]: Finished difference Result 8572 states and 22609 transitions. [2022-02-10 22:29:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:29:13,651 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:13,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:13,661 INFO L225 Difference]: With dead ends: 8572 [2022-02-10 22:29:13,661 INFO L226 Difference]: Without dead ends: 8007 [2022-02-10 22:29:13,661 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=616, Invalid=1934, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 22:29:13,662 INFO L934 BasicCegarLoop]: 247 mSDtfsCounter, 404 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:13,662 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [404 Valid, 2224 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:13,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8007 states. [2022-02-10 22:29:13,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8007 to 7309. [2022-02-10 22:29:13,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6458675424192664) internal successors, (19336), 7308 states have internal predecessors, (19336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:13,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19336 transitions. [2022-02-10 22:29:13,761 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19336 transitions. Word has length 109 [2022-02-10 22:29:13,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:13,761 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19336 transitions. [2022-02-10 22:29:13,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:13,761 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19336 transitions. [2022-02-10 22:29:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:13,768 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:13,768 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:13,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable535 [2022-02-10 22:29:13,768 INFO L402 AbstractCegarLoop]: === Iteration 537 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:13,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:13,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1521363526, now seen corresponding path program 235 times [2022-02-10 22:29:13,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:13,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748546276] [2022-02-10 22:29:13,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:13,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:13,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:13,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:13,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748546276] [2022-02-10 22:29:13,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748546276] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:13,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:13,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:13,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732158268] [2022-02-10 22:29:13,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:13,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:13,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:13,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:13,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:13,892 INFO L87 Difference]: Start difference. First operand 7309 states and 19336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:14,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:14,464 INFO L93 Difference]: Finished difference Result 8455 states and 22302 transitions. [2022-02-10 22:29:14,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:29:14,464 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:14,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:14,473 INFO L225 Difference]: With dead ends: 8455 [2022-02-10 22:29:14,473 INFO L226 Difference]: Without dead ends: 7933 [2022-02-10 22:29:14,474 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:29:14,474 INFO L934 BasicCegarLoop]: 240 mSDtfsCounter, 301 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2528 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:14,474 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 2528 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:14,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2022-02-10 22:29:14,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 7313. [2022-02-10 22:29:14,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6453774617067833) internal successors, (19343), 7312 states have internal predecessors, (19343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:14,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19343 transitions. [2022-02-10 22:29:14,554 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19343 transitions. Word has length 109 [2022-02-10 22:29:14,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:14,554 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19343 transitions. [2022-02-10 22:29:14,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:14,555 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19343 transitions. [2022-02-10 22:29:14,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:14,561 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:14,561 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:14,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536 [2022-02-10 22:29:14,561 INFO L402 AbstractCegarLoop]: === Iteration 538 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:14,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:14,562 INFO L85 PathProgramCache]: Analyzing trace with hash -36551824, now seen corresponding path program 236 times [2022-02-10 22:29:14,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:14,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451850996] [2022-02-10 22:29:14,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:14,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:14,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:14,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:14,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451850996] [2022-02-10 22:29:14,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451850996] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:14,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:14,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:14,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880610865] [2022-02-10 22:29:14,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:14,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:14,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:14,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:14,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:14,701 INFO L87 Difference]: Start difference. First operand 7313 states and 19343 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:15,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:15,128 INFO L93 Difference]: Finished difference Result 8307 states and 21916 transitions. [2022-02-10 22:29:15,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:29:15,129 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:15,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:15,137 INFO L225 Difference]: With dead ends: 8307 [2022-02-10 22:29:15,137 INFO L226 Difference]: Without dead ends: 7828 [2022-02-10 22:29:15,138 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:29:15,138 INFO L934 BasicCegarLoop]: 228 mSDtfsCounter, 263 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2471 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:15,138 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 2471 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:15,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7828 states. [2022-02-10 22:29:15,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7828 to 7317. [2022-02-10 22:29:15,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.644887916894478) internal successors, (19350), 7316 states have internal predecessors, (19350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:15,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19350 transitions. [2022-02-10 22:29:15,222 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19350 transitions. Word has length 109 [2022-02-10 22:29:15,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:15,222 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19350 transitions. [2022-02-10 22:29:15,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:15,222 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19350 transitions. [2022-02-10 22:29:15,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:15,229 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:15,229 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:15,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable537 [2022-02-10 22:29:15,229 INFO L402 AbstractCegarLoop]: === Iteration 539 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:15,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:15,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1590971294, now seen corresponding path program 237 times [2022-02-10 22:29:15,229 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:15,229 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230416214] [2022-02-10 22:29:15,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:15,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:15,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:15,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:15,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230416214] [2022-02-10 22:29:15,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230416214] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:15,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:15,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:15,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510582183] [2022-02-10 22:29:15,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:15,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:15,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:15,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:15,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:15,349 INFO L87 Difference]: Start difference. First operand 7317 states and 19350 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:15,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:15,742 INFO L93 Difference]: Finished difference Result 8209 states and 21651 transitions. [2022-02-10 22:29:15,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:29:15,742 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:15,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:15,750 INFO L225 Difference]: With dead ends: 8209 [2022-02-10 22:29:15,750 INFO L226 Difference]: Without dead ends: 7713 [2022-02-10 22:29:15,751 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:29:15,751 INFO L934 BasicCegarLoop]: 222 mSDtfsCounter, 234 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:15,751 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2422 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:15,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7713 states. [2022-02-10 22:29:15,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7713 to 7297. [2022-02-10 22:29:15,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.6467927631578947) internal successors, (19311), 7296 states have internal predecessors, (19311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:15,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19311 transitions. [2022-02-10 22:29:15,834 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19311 transitions. Word has length 109 [2022-02-10 22:29:15,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:15,834 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19311 transitions. [2022-02-10 22:29:15,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:15,834 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19311 transitions. [2022-02-10 22:29:15,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:15,841 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:15,841 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:15,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable538 [2022-02-10 22:29:15,841 INFO L402 AbstractCegarLoop]: === Iteration 540 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:15,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:15,841 INFO L85 PathProgramCache]: Analyzing trace with hash 187059838, now seen corresponding path program 238 times [2022-02-10 22:29:15,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:15,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763574427] [2022-02-10 22:29:15,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:15,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:15,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:15,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:15,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763574427] [2022-02-10 22:29:15,959 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763574427] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:15,959 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:15,959 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:15,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274546955] [2022-02-10 22:29:15,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:15,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:15,960 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:15,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:15,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:15,960 INFO L87 Difference]: Start difference. First operand 7297 states and 19311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:16,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:16,370 INFO L93 Difference]: Finished difference Result 8243 states and 21752 transitions. [2022-02-10 22:29:16,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:29:16,370 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:16,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:16,379 INFO L225 Difference]: With dead ends: 8243 [2022-02-10 22:29:16,379 INFO L226 Difference]: Without dead ends: 7764 [2022-02-10 22:29:16,380 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:29:16,380 INFO L934 BasicCegarLoop]: 225 mSDtfsCounter, 291 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:16,380 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2444 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:16,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7764 states. [2022-02-10 22:29:16,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7764 to 7313. [2022-02-10 22:29:16,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:16,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-02-10 22:29:16,467 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-02-10 22:29:16,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:16,467 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-02-10 22:29:16,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:16,467 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-02-10 22:29:16,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:16,475 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:16,475 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:16,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2022-02-10 22:29:16,475 INFO L402 AbstractCegarLoop]: === Iteration 541 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:16,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:16,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1814582956, now seen corresponding path program 239 times [2022-02-10 22:29:16,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:16,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751633418] [2022-02-10 22:29:16,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:16,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:16,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:16,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:16,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751633418] [2022-02-10 22:29:16,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751633418] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:16,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:16,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:16,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439940541] [2022-02-10 22:29:16,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:16,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:16,596 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:16,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:16,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:16,596 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:17,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:17,057 INFO L93 Difference]: Finished difference Result 8201 states and 21641 transitions. [2022-02-10 22:29:17,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:29:17,058 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:17,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:17,067 INFO L225 Difference]: With dead ends: 8201 [2022-02-10 22:29:17,067 INFO L226 Difference]: Without dead ends: 7721 [2022-02-10 22:29:17,067 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:29:17,068 INFO L934 BasicCegarLoop]: 226 mSDtfsCounter, 225 mSDsluCounter, 2396 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2575 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:17,068 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 2575 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:17,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7721 states. [2022-02-10 22:29:17,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7721 to 7309. [2022-02-10 22:29:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:17,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-02-10 22:29:17,155 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-02-10 22:29:17,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:17,156 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-02-10 22:29:17,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:17,156 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-02-10 22:29:17,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:17,163 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:17,163 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:17,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2022-02-10 22:29:17,163 INFO L402 AbstractCegarLoop]: === Iteration 542 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:17,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:17,164 INFO L85 PathProgramCache]: Analyzing trace with hash 693525616, now seen corresponding path program 240 times [2022-02-10 22:29:17,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:17,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457226615] [2022-02-10 22:29:17,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:17,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:17,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:17,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:17,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457226615] [2022-02-10 22:29:17,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457226615] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:17,283 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:17,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:17,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121594165] [2022-02-10 22:29:17,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:17,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:17,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:17,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:17,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:17,284 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:17,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:17,810 INFO L93 Difference]: Finished difference Result 8189 states and 21608 transitions. [2022-02-10 22:29:17,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:29:17,810 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:17,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:17,820 INFO L225 Difference]: With dead ends: 8189 [2022-02-10 22:29:17,821 INFO L226 Difference]: Without dead ends: 7669 [2022-02-10 22:29:17,821 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:29:17,821 INFO L934 BasicCegarLoop]: 226 mSDtfsCounter, 302 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:17,821 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 2570 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:17,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7669 states. [2022-02-10 22:29:17,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7669 to 7305. [2022-02-10 22:29:17,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646358159912377) internal successors, (19329), 7304 states have internal predecessors, (19329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:17,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19329 transitions. [2022-02-10 22:29:17,919 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19329 transitions. Word has length 109 [2022-02-10 22:29:17,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:17,920 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19329 transitions. [2022-02-10 22:29:17,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:17,920 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19329 transitions. [2022-02-10 22:29:17,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:17,927 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:17,927 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:17,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable541 [2022-02-10 22:29:17,928 INFO L402 AbstractCegarLoop]: === Iteration 543 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:17,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:17,928 INFO L85 PathProgramCache]: Analyzing trace with hash 766155340, now seen corresponding path program 241 times [2022-02-10 22:29:17,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:17,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992118403] [2022-02-10 22:29:17,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:17,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:18,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:18,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:18,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992118403] [2022-02-10 22:29:18,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992118403] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:18,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:18,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:18,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330879740] [2022-02-10 22:29:18,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:18,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:18,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:18,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:18,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:18,052 INFO L87 Difference]: Start difference. First operand 7305 states and 19329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:18,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:18,634 INFO L93 Difference]: Finished difference Result 8383 states and 22112 transitions. [2022-02-10 22:29:18,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:29:18,634 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:18,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:18,645 INFO L225 Difference]: With dead ends: 8383 [2022-02-10 22:29:18,645 INFO L226 Difference]: Without dead ends: 7861 [2022-02-10 22:29:18,645 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:29:18,645 INFO L934 BasicCegarLoop]: 232 mSDtfsCounter, 346 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:18,645 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 2678 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:18,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7861 states. [2022-02-10 22:29:18,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7861 to 7309. [2022-02-10 22:29:18,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6458675424192664) internal successors, (19336), 7308 states have internal predecessors, (19336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:18,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19336 transitions. [2022-02-10 22:29:18,742 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19336 transitions. Word has length 109 [2022-02-10 22:29:18,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:18,742 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19336 transitions. [2022-02-10 22:29:18,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:18,743 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19336 transitions. [2022-02-10 22:29:18,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:18,750 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:18,750 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:18,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable542 [2022-02-10 22:29:18,750 INFO L402 AbstractCegarLoop]: === Iteration 544 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:18,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:18,751 INFO L85 PathProgramCache]: Analyzing trace with hash -791760010, now seen corresponding path program 242 times [2022-02-10 22:29:18,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:18,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983371690] [2022-02-10 22:29:18,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:18,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:18,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:18,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:18,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983371690] [2022-02-10 22:29:18,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983371690] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:18,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:18,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:18,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708769162] [2022-02-10 22:29:18,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:18,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:18,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:18,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:18,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:18,874 INFO L87 Difference]: Start difference. First operand 7309 states and 19336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:19,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:19,320 INFO L93 Difference]: Finished difference Result 8219 states and 21682 transitions. [2022-02-10 22:29:19,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:29:19,320 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:19,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:19,331 INFO L225 Difference]: With dead ends: 8219 [2022-02-10 22:29:19,331 INFO L226 Difference]: Without dead ends: 7740 [2022-02-10 22:29:19,331 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:29:19,331 INFO L934 BasicCegarLoop]: 224 mSDtfsCounter, 270 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2397 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:19,332 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2397 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:19,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7740 states. [2022-02-10 22:29:19,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7740 to 7313. [2022-02-10 22:29:19,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6453774617067833) internal successors, (19343), 7312 states have internal predecessors, (19343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:19,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19343 transitions. [2022-02-10 22:29:19,432 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19343 transitions. Word has length 109 [2022-02-10 22:29:19,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:19,433 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19343 transitions. [2022-02-10 22:29:19,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:19,433 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19343 transitions. [2022-02-10 22:29:19,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:19,441 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:19,441 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:19,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable543 [2022-02-10 22:29:19,441 INFO L402 AbstractCegarLoop]: === Iteration 545 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:19,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:19,441 INFO L85 PathProgramCache]: Analyzing trace with hash 835763108, now seen corresponding path program 243 times [2022-02-10 22:29:19,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:19,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299642479] [2022-02-10 22:29:19,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:19,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:19,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:19,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:19,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299642479] [2022-02-10 22:29:19,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299642479] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:19,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:19,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:19,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103965996] [2022-02-10 22:29:19,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:19,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:19,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:19,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:19,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:19,568 INFO L87 Difference]: Start difference. First operand 7313 states and 19343 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:20,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:20,019 INFO L93 Difference]: Finished difference Result 8153 states and 21505 transitions. [2022-02-10 22:29:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:29:20,019 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:20,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:20,028 INFO L225 Difference]: With dead ends: 8153 [2022-02-10 22:29:20,028 INFO L226 Difference]: Without dead ends: 7665 [2022-02-10 22:29:20,028 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1001, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:29:20,028 INFO L934 BasicCegarLoop]: 213 mSDtfsCounter, 253 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 2300 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:20,028 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 2300 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:20,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7665 states. [2022-02-10 22:29:20,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7665 to 7301. [2022-02-10 22:29:20,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7301 states, 7300 states have (on average 2.646301369863014) internal successors, (19318), 7300 states have internal predecessors, (19318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:20,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 19318 transitions. [2022-02-10 22:29:20,106 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 19318 transitions. Word has length 109 [2022-02-10 22:29:20,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:20,106 INFO L470 AbstractCegarLoop]: Abstraction has 7301 states and 19318 transitions. [2022-02-10 22:29:20,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:20,106 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 19318 transitions. [2022-02-10 22:29:20,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:20,113 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:20,113 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:20,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable544 [2022-02-10 22:29:20,113 INFO L402 AbstractCegarLoop]: === Iteration 546 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:20,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:20,113 INFO L85 PathProgramCache]: Analyzing trace with hash -446580992, now seen corresponding path program 244 times [2022-02-10 22:29:20,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:20,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401224095] [2022-02-10 22:29:20,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:20,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:20,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:20,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:20,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401224095] [2022-02-10 22:29:20,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401224095] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:20,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:20,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:20,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347461055] [2022-02-10 22:29:20,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:20,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:20,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:20,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:20,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:20,234 INFO L87 Difference]: Start difference. First operand 7301 states and 19318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:20,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:20,932 INFO L93 Difference]: Finished difference Result 8516 states and 22459 transitions. [2022-02-10 22:29:20,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:29:20,932 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:20,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:20,941 INFO L225 Difference]: With dead ends: 8516 [2022-02-10 22:29:20,941 INFO L226 Difference]: Without dead ends: 7951 [2022-02-10 22:29:20,942 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=622, Invalid=2030, Unknown=0, NotChecked=0, Total=2652 [2022-02-10 22:29:20,942 INFO L934 BasicCegarLoop]: 240 mSDtfsCounter, 422 mSDsluCounter, 2596 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 2758 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:20,942 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 2758 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:20,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7951 states. [2022-02-10 22:29:21,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7951 to 7305. [2022-02-10 22:29:21,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.6458105147864184) internal successors, (19325), 7304 states have internal predecessors, (19325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:21,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19325 transitions. [2022-02-10 22:29:21,025 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19325 transitions. Word has length 109 [2022-02-10 22:29:21,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:21,025 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19325 transitions. [2022-02-10 22:29:21,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:21,025 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19325 transitions. [2022-02-10 22:29:21,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:21,032 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:21,032 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:21,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable545 [2022-02-10 22:29:21,032 INFO L402 AbstractCegarLoop]: === Iteration 547 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:21,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:21,032 INFO L85 PathProgramCache]: Analyzing trace with hash 417850070, now seen corresponding path program 245 times [2022-02-10 22:29:21,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:21,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522696679] [2022-02-10 22:29:21,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:21,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:21,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:21,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:21,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522696679] [2022-02-10 22:29:21,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522696679] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:21,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:21,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:21,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435475837] [2022-02-10 22:29:21,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:21,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:21,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:21,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:21,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:21,154 INFO L87 Difference]: Start difference. First operand 7305 states and 19325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:21,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:21,716 INFO L93 Difference]: Finished difference Result 8391 states and 22130 transitions. [2022-02-10 22:29:21,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:29:21,716 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:21,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:21,725 INFO L225 Difference]: With dead ends: 8391 [2022-02-10 22:29:21,725 INFO L226 Difference]: Without dead ends: 7869 [2022-02-10 22:29:21,725 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=451, Invalid=1529, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:29:21,725 INFO L934 BasicCegarLoop]: 232 mSDtfsCounter, 349 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:21,725 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 2680 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:21,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7869 states. [2022-02-10 22:29:21,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7869 to 7309. [2022-02-10 22:29:21,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.645320197044335) internal successors, (19332), 7308 states have internal predecessors, (19332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:21,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19332 transitions. [2022-02-10 22:29:21,807 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19332 transitions. Word has length 109 [2022-02-10 22:29:21,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:21,807 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19332 transitions. [2022-02-10 22:29:21,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:21,807 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19332 transitions. [2022-02-10 22:29:21,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:21,814 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:21,814 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:21,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable546 [2022-02-10 22:29:21,814 INFO L402 AbstractCegarLoop]: === Iteration 548 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:21,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:21,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1140065280, now seen corresponding path program 246 times [2022-02-10 22:29:21,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:21,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893434576] [2022-02-10 22:29:21,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:21,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:21,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:21,937 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:21,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893434576] [2022-02-10 22:29:21,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893434576] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:21,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:21,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:21,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76128390] [2022-02-10 22:29:21,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:21,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:21,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:21,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:21,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:21,938 INFO L87 Difference]: Start difference. First operand 7309 states and 19332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:22,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:22,332 INFO L93 Difference]: Finished difference Result 8227 states and 21700 transitions. [2022-02-10 22:29:22,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:29:22,333 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:22,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:22,341 INFO L225 Difference]: With dead ends: 8227 [2022-02-10 22:29:22,341 INFO L226 Difference]: Without dead ends: 7748 [2022-02-10 22:29:22,341 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:29:22,342 INFO L934 BasicCegarLoop]: 220 mSDtfsCounter, 322 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:22,342 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 2051 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:22,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7748 states. [2022-02-10 22:29:22,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7748 to 7313. [2022-02-10 22:29:22,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6448304157549236) internal successors, (19339), 7312 states have internal predecessors, (19339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:22,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19339 transitions. [2022-02-10 22:29:22,422 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19339 transitions. Word has length 109 [2022-02-10 22:29:22,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:22,423 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19339 transitions. [2022-02-10 22:29:22,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:22,423 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19339 transitions. [2022-02-10 22:29:22,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:22,430 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:22,430 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:22,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable547 [2022-02-10 22:29:22,430 INFO L402 AbstractCegarLoop]: === Iteration 549 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:22,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:22,430 INFO L85 PathProgramCache]: Analyzing trace with hash 487457838, now seen corresponding path program 247 times [2022-02-10 22:29:22,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:22,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762990675] [2022-02-10 22:29:22,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:22,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:22,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:22,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:22,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762990675] [2022-02-10 22:29:22,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762990675] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:22,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:22,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:22,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103201718] [2022-02-10 22:29:22,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:22,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:22,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:22,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:22,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:22,549 INFO L87 Difference]: Start difference. First operand 7313 states and 19339 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:22,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:22,938 INFO L93 Difference]: Finished difference Result 8153 states and 21501 transitions. [2022-02-10 22:29:22,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:29:22,938 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:22,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:22,946 INFO L225 Difference]: With dead ends: 8153 [2022-02-10 22:29:22,946 INFO L226 Difference]: Without dead ends: 7661 [2022-02-10 22:29:22,947 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1014, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:29:22,947 INFO L934 BasicCegarLoop]: 209 mSDtfsCounter, 299 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:22,947 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 2322 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:22,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7661 states. [2022-02-10 22:29:23,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7661 to 7297. [2022-02-10 22:29:23,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.6462445175438596) internal successors, (19307), 7296 states have internal predecessors, (19307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:23,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19307 transitions. [2022-02-10 22:29:23,025 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19307 transitions. Word has length 109 [2022-02-10 22:29:23,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:23,026 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19307 transitions. [2022-02-10 22:29:23,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:23,026 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19307 transitions. [2022-02-10 22:29:23,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:23,032 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:23,032 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:23,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable548 [2022-02-10 22:29:23,032 INFO L402 AbstractCegarLoop]: === Iteration 550 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:23,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:23,033 INFO L85 PathProgramCache]: Analyzing trace with hash -94104470, now seen corresponding path program 248 times [2022-02-10 22:29:23,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:23,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493312718] [2022-02-10 22:29:23,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:23,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:23,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:23,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:23,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493312718] [2022-02-10 22:29:23,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493312718] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:23,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:23,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:23,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628459863] [2022-02-10 22:29:23,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:23,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:23,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:23,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:23,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:23,151 INFO L87 Difference]: Start difference. First operand 7297 states and 19307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:23,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:23,827 INFO L93 Difference]: Finished difference Result 8378 states and 22067 transitions. [2022-02-10 22:29:23,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-10 22:29:23,828 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:23,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:23,838 INFO L225 Difference]: With dead ends: 8378 [2022-02-10 22:29:23,838 INFO L226 Difference]: Without dead ends: 7770 [2022-02-10 22:29:23,839 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-02-10 22:29:23,839 INFO L934 BasicCegarLoop]: 240 mSDtfsCounter, 556 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:23,839 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [556 Valid, 2558 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:23,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7770 states. [2022-02-10 22:29:23,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7770 to 7254. [2022-02-10 22:29:23,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7254 states, 7253 states have (on average 2.6459396111953675) internal successors, (19191), 7253 states have internal predecessors, (19191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:23,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7254 states to 7254 states and 19191 transitions. [2022-02-10 22:29:23,927 INFO L78 Accepts]: Start accepts. Automaton has 7254 states and 19191 transitions. Word has length 109 [2022-02-10 22:29:23,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:23,927 INFO L470 AbstractCegarLoop]: Abstraction has 7254 states and 19191 transitions. [2022-02-10 22:29:23,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:23,927 INFO L276 IsEmpty]: Start isEmpty. Operand 7254 states and 19191 transitions. [2022-02-10 22:29:23,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:23,934 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:23,934 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:23,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable549 [2022-02-10 22:29:23,934 INFO L402 AbstractCegarLoop]: === Iteration 551 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:23,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:23,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1930391086, now seen corresponding path program 249 times [2022-02-10 22:29:23,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:23,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739651492] [2022-02-10 22:29:23,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:23,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:24,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:24,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:24,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739651492] [2022-02-10 22:29:24,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739651492] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:24,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:24,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:24,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500427336] [2022-02-10 22:29:24,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:24,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:24,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:24,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:24,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:24,060 INFO L87 Difference]: Start difference. First operand 7254 states and 19191 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:24,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:24,759 INFO L93 Difference]: Finished difference Result 8273 states and 21793 transitions. [2022-02-10 22:29:24,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:29:24,759 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:24,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:24,769 INFO L225 Difference]: With dead ends: 8273 [2022-02-10 22:29:24,769 INFO L226 Difference]: Without dead ends: 7708 [2022-02-10 22:29:24,770 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:29:24,770 INFO L934 BasicCegarLoop]: 228 mSDtfsCounter, 502 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 2470 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:24,770 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [502 Valid, 2470 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:24,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7708 states. [2022-02-10 22:29:24,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7708 to 7258. [2022-02-10 22:29:24,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7258 states, 7257 states have (on average 2.645445776491663) internal successors, (19198), 7257 states have internal predecessors, (19198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:24,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7258 states to 7258 states and 19198 transitions. [2022-02-10 22:29:24,856 INFO L78 Accepts]: Start accepts. Automaton has 7258 states and 19198 transitions. Word has length 109 [2022-02-10 22:29:24,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:24,856 INFO L470 AbstractCegarLoop]: Abstraction has 7258 states and 19198 transitions. [2022-02-10 22:29:24,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:24,856 INFO L276 IsEmpty]: Start isEmpty. Operand 7258 states and 19198 transitions. [2022-02-10 22:29:24,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:24,862 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:24,862 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:24,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable550 [2022-02-10 22:29:24,863 INFO L402 AbstractCegarLoop]: === Iteration 552 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:24,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:24,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1500145148, now seen corresponding path program 250 times [2022-02-10 22:29:24,863 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:24,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348999723] [2022-02-10 22:29:24,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:24,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:24,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:24,986 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:24,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348999723] [2022-02-10 22:29:24,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348999723] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:24,986 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:24,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:24,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249111842] [2022-02-10 22:29:24,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:24,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:24,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:24,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:24,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:24,987 INFO L87 Difference]: Start difference. First operand 7258 states and 19198 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:25,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:25,527 INFO L93 Difference]: Finished difference Result 8168 states and 21519 transitions. [2022-02-10 22:29:25,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:29:25,528 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:25,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:25,536 INFO L225 Difference]: With dead ends: 8168 [2022-02-10 22:29:25,536 INFO L226 Difference]: Without dead ends: 7646 [2022-02-10 22:29:25,537 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=441, Invalid=1539, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:29:25,537 INFO L934 BasicCegarLoop]: 216 mSDtfsCounter, 365 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 2529 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:25,537 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 2529 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:25,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7646 states. [2022-02-10 22:29:25,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7646 to 7262. [2022-02-10 22:29:25,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7262 states, 7261 states have (on average 2.644952485883487) internal successors, (19205), 7261 states have internal predecessors, (19205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:25,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7262 states to 7262 states and 19205 transitions. [2022-02-10 22:29:25,613 INFO L78 Accepts]: Start accepts. Automaton has 7262 states and 19205 transitions. Word has length 109 [2022-02-10 22:29:25,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:25,613 INFO L470 AbstractCegarLoop]: Abstraction has 7262 states and 19205 transitions. [2022-02-10 22:29:25,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:25,614 INFO L276 IsEmpty]: Start isEmpty. Operand 7262 states and 19205 transitions. [2022-02-10 22:29:25,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:25,620 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:25,620 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:25,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable551 [2022-02-10 22:29:25,620 INFO L402 AbstractCegarLoop]: === Iteration 553 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:25,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:25,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1236906798, now seen corresponding path program 251 times [2022-02-10 22:29:25,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:25,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511360649] [2022-02-10 22:29:25,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:25,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:25,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:25,742 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:25,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511360649] [2022-02-10 22:29:25,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511360649] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:25,742 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:25,742 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:25,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685185786] [2022-02-10 22:29:25,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:25,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:25,743 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:25,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:25,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:25,743 INFO L87 Difference]: Start difference. First operand 7262 states and 19205 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:26,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:26,183 INFO L93 Difference]: Finished difference Result 8044 states and 21199 transitions. [2022-02-10 22:29:26,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:29:26,183 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:26,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:26,191 INFO L225 Difference]: With dead ends: 8044 [2022-02-10 22:29:26,191 INFO L226 Difference]: Without dead ends: 7565 [2022-02-10 22:29:26,192 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:29:26,192 INFO L934 BasicCegarLoop]: 204 mSDtfsCounter, 298 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:26,192 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 2420 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:26,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7565 states. [2022-02-10 22:29:26,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7565 to 7266. [2022-02-10 22:29:26,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7266 states, 7265 states have (on average 2.6444597384721265) internal successors, (19212), 7265 states have internal predecessors, (19212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:26,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7266 states to 7266 states and 19212 transitions. [2022-02-10 22:29:26,268 INFO L78 Accepts]: Start accepts. Automaton has 7266 states and 19212 transitions. Word has length 109 [2022-02-10 22:29:26,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:26,268 INFO L470 AbstractCegarLoop]: Abstraction has 7266 states and 19212 transitions. [2022-02-10 22:29:26,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:26,268 INFO L276 IsEmpty]: Start isEmpty. Operand 7266 states and 19212 transitions. [2022-02-10 22:29:26,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-10 22:29:26,274 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:26,274 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:26,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552 [2022-02-10 22:29:26,274 INFO L402 AbstractCegarLoop]: === Iteration 554 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:26,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:26,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1430537380, now seen corresponding path program 252 times [2022-02-10 22:29:26,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:26,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768886886] [2022-02-10 22:29:26,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:26,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:26,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:26,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768886886] [2022-02-10 22:29:26,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768886886] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:26,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:26,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-10 22:29:26,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57639456] [2022-02-10 22:29:26,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:26,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-10 22:29:26,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:26,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-10 22:29:26,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:29:26,395 INFO L87 Difference]: Start difference. First operand 7266 states and 19212 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:26,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:26,750 INFO L93 Difference]: Finished difference Result 7742 states and 20401 transitions. [2022-02-10 22:29:26,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:29:26,750 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-02-10 22:29:26,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:26,759 INFO L225 Difference]: With dead ends: 7742 [2022-02-10 22:29:26,759 INFO L226 Difference]: Without dead ends: 7154 [2022-02-10 22:29:26,759 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:29:26,759 INFO L934 BasicCegarLoop]: 193 mSDtfsCounter, 224 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:26,759 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2317 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:29:26,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7154 states. [2022-02-10 22:29:26,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7154 to 7154. [2022-02-10 22:29:26,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7154 states, 7153 states have (on average 2.6496574863693554) internal successors, (18953), 7153 states have internal predecessors, (18953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:26,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7154 states to 7154 states and 18953 transitions. [2022-02-10 22:29:26,835 INFO L78 Accepts]: Start accepts. Automaton has 7154 states and 18953 transitions. Word has length 109 [2022-02-10 22:29:26,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:26,835 INFO L470 AbstractCegarLoop]: Abstraction has 7154 states and 18953 transitions. [2022-02-10 22:29:26,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:26,835 INFO L276 IsEmpty]: Start isEmpty. Operand 7154 states and 18953 transitions. [2022-02-10 22:29:26,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:29:26,841 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:26,842 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:26,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable553 [2022-02-10 22:29:26,842 INFO L402 AbstractCegarLoop]: === Iteration 555 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:26,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:26,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1712437026, now seen corresponding path program 1 times [2022-02-10 22:29:26,842 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:26,842 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502970861] [2022-02-10 22:29:26,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:26,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:27,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:27,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:27,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502970861] [2022-02-10 22:29:27,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502970861] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:27,504 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:27,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:29:27,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164276706] [2022-02-10 22:29:27,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:27,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:29:27,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:27,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:29:27,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:29:27,505 INFO L87 Difference]: Start difference. First operand 7154 states and 18953 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:36,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:36,296 INFO L93 Difference]: Finished difference Result 13508 states and 35803 transitions. [2022-02-10 22:29:36,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-02-10 22:29:36,296 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:29:36,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:36,312 INFO L225 Difference]: With dead ends: 13508 [2022-02-10 22:29:36,312 INFO L226 Difference]: Without dead ends: 12060 [2022-02-10 22:29:36,315 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4885 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=4501, Invalid=14131, Unknown=0, NotChecked=0, Total=18632 [2022-02-10 22:29:36,315 INFO L934 BasicCegarLoop]: 642 mSDtfsCounter, 2383 mSDsluCounter, 13767 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2383 SdHoareTripleChecker+Valid, 14104 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:36,315 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2383 Valid, 14104 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:29:36,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12060 states. [2022-02-10 22:29:36,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12060 to 7454. [2022-02-10 22:29:36,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7454 states, 7453 states have (on average 2.6520864081577886) internal successors, (19766), 7453 states have internal predecessors, (19766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:36,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7454 states to 7454 states and 19766 transitions. [2022-02-10 22:29:36,419 INFO L78 Accepts]: Start accepts. Automaton has 7454 states and 19766 transitions. Word has length 153 [2022-02-10 22:29:36,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:36,419 INFO L470 AbstractCegarLoop]: Abstraction has 7454 states and 19766 transitions. [2022-02-10 22:29:36,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:36,419 INFO L276 IsEmpty]: Start isEmpty. Operand 7454 states and 19766 transitions. [2022-02-10 22:29:36,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:29:36,426 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:36,426 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:36,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable554 [2022-02-10 22:29:36,426 INFO L402 AbstractCegarLoop]: === Iteration 556 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:36,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:36,427 INFO L85 PathProgramCache]: Analyzing trace with hash -941226786, now seen corresponding path program 2 times [2022-02-10 22:29:36,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:36,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680089896] [2022-02-10 22:29:36,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:36,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:36,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:36,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:36,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680089896] [2022-02-10 22:29:36,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680089896] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:36,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:36,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:29:36,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648967072] [2022-02-10 22:29:36,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:36,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:29:36,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:36,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:29:36,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:29:36,995 INFO L87 Difference]: Start difference. First operand 7454 states and 19766 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:44,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:44,318 INFO L93 Difference]: Finished difference Result 14381 states and 38021 transitions. [2022-02-10 22:29:44,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-02-10 22:29:44,318 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:29:44,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:44,334 INFO L225 Difference]: With dead ends: 14381 [2022-02-10 22:29:44,334 INFO L226 Difference]: Without dead ends: 13093 [2022-02-10 22:29:44,336 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4216 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=3612, Invalid=12390, Unknown=0, NotChecked=0, Total=16002 [2022-02-10 22:29:44,336 INFO L934 BasicCegarLoop]: 638 mSDtfsCounter, 2019 mSDsluCounter, 12515 mSDsCounter, 0 mSdLazyCounter, 1939 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2019 SdHoareTripleChecker+Valid, 12882 SdHoareTripleChecker+Invalid, 1939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:44,336 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2019 Valid, 12882 Invalid, 1939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1939 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:29:44,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13093 states. [2022-02-10 22:29:44,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13093 to 7510. [2022-02-10 22:29:44,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7510 states, 7509 states have (on average 2.645891596750566) internal successors, (19868), 7509 states have internal predecessors, (19868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:44,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 19868 transitions. [2022-02-10 22:29:44,443 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 19868 transitions. Word has length 153 [2022-02-10 22:29:44,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:44,443 INFO L470 AbstractCegarLoop]: Abstraction has 7510 states and 19868 transitions. [2022-02-10 22:29:44,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:44,443 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 19868 transitions. [2022-02-10 22:29:44,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:29:44,450 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:44,451 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:44,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable555 [2022-02-10 22:29:44,451 INFO L402 AbstractCegarLoop]: === Iteration 557 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:44,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:44,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1092732770, now seen corresponding path program 3 times [2022-02-10 22:29:44,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:44,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099299244] [2022-02-10 22:29:44,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:44,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:45,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:45,024 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:45,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099299244] [2022-02-10 22:29:45,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099299244] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:45,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:45,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:29:45,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146600358] [2022-02-10 22:29:45,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:45,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:29:45,025 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:45,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:29:45,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:29:45,026 INFO L87 Difference]: Start difference. First operand 7510 states and 19868 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:48,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:48,606 INFO L93 Difference]: Finished difference Result 12770 states and 33797 transitions. [2022-02-10 22:29:48,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:29:48,606 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:29:48,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:48,623 INFO L225 Difference]: With dead ends: 12770 [2022-02-10 22:29:48,623 INFO L226 Difference]: Without dead ends: 12279 [2022-02-10 22:29:48,623 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1146, Invalid=3966, Unknown=0, NotChecked=0, Total=5112 [2022-02-10 22:29:48,624 INFO L934 BasicCegarLoop]: 564 mSDtfsCounter, 1109 mSDsluCounter, 11859 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 12150 SdHoareTripleChecker+Invalid, 2004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:48,624 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 12150 Invalid, 2004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:29:48,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12279 states. [2022-02-10 22:29:48,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12279 to 7542. [2022-02-10 22:29:48,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7542 states, 7541 states have (on average 2.6458029439066437) internal successors, (19952), 7541 states have internal predecessors, (19952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:48,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7542 states to 7542 states and 19952 transitions. [2022-02-10 22:29:48,732 INFO L78 Accepts]: Start accepts. Automaton has 7542 states and 19952 transitions. Word has length 153 [2022-02-10 22:29:48,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:48,733 INFO L470 AbstractCegarLoop]: Abstraction has 7542 states and 19952 transitions. [2022-02-10 22:29:48,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:48,733 INFO L276 IsEmpty]: Start isEmpty. Operand 7542 states and 19952 transitions. [2022-02-10 22:29:48,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:29:48,740 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:48,740 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:48,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable556 [2022-02-10 22:29:48,740 INFO L402 AbstractCegarLoop]: === Iteration 558 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:48,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:48,740 INFO L85 PathProgramCache]: Analyzing trace with hash 534790348, now seen corresponding path program 4 times [2022-02-10 22:29:48,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:48,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581727025] [2022-02-10 22:29:48,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:48,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:49,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:49,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:49,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581727025] [2022-02-10 22:29:49,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581727025] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:49,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:49,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:29:49,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286978723] [2022-02-10 22:29:49,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:49,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:29:49,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:49,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:29:49,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:29:49,317 INFO L87 Difference]: Start difference. First operand 7542 states and 19952 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:52,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:52,742 INFO L93 Difference]: Finished difference Result 12767 states and 33787 transitions. [2022-02-10 22:29:52,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 22:29:52,743 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:29:52,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:52,756 INFO L225 Difference]: With dead ends: 12767 [2022-02-10 22:29:52,756 INFO L226 Difference]: Without dead ends: 12275 [2022-02-10 22:29:52,757 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1179, Invalid=4673, Unknown=0, NotChecked=0, Total=5852 [2022-02-10 22:29:52,757 INFO L934 BasicCegarLoop]: 573 mSDtfsCounter, 1143 mSDsluCounter, 11521 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 11830 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:52,757 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 11830 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1937 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:29:52,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12275 states. [2022-02-10 22:29:52,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12275 to 7538. [2022-02-10 22:29:52,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7538 states, 7537 states have (on average 2.645747644951572) internal successors, (19941), 7537 states have internal predecessors, (19941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:52,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7538 states to 7538 states and 19941 transitions. [2022-02-10 22:29:52,856 INFO L78 Accepts]: Start accepts. Automaton has 7538 states and 19941 transitions. Word has length 153 [2022-02-10 22:29:52,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:52,856 INFO L470 AbstractCegarLoop]: Abstraction has 7538 states and 19941 transitions. [2022-02-10 22:29:52,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:52,856 INFO L276 IsEmpty]: Start isEmpty. Operand 7538 states and 19941 transitions. [2022-02-10 22:29:52,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:29:52,864 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:52,864 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:52,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable557 [2022-02-10 22:29:52,864 INFO L402 AbstractCegarLoop]: === Iteration 559 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:52,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:52,864 INFO L85 PathProgramCache]: Analyzing trace with hash -586266992, now seen corresponding path program 5 times [2022-02-10 22:29:52,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:52,864 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760777381] [2022-02-10 22:29:52,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:52,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:53,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:53,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:53,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760777381] [2022-02-10 22:29:53,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760777381] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:53,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:53,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:29:53,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133481976] [2022-02-10 22:29:53,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:53,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:29:53,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:53,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:29:53,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:29:53,375 INFO L87 Difference]: Start difference. First operand 7538 states and 19941 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:57,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:57,315 INFO L93 Difference]: Finished difference Result 12803 states and 33882 transitions. [2022-02-10 22:29:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 22:29:57,315 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:29:57,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:57,331 INFO L225 Difference]: With dead ends: 12803 [2022-02-10 22:29:57,331 INFO L226 Difference]: Without dead ends: 12271 [2022-02-10 22:29:57,332 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1339 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1481, Invalid=6001, Unknown=0, NotChecked=0, Total=7482 [2022-02-10 22:29:57,332 INFO L934 BasicCegarLoop]: 582 mSDtfsCounter, 1234 mSDsluCounter, 12221 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 12526 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:57,332 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1234 Valid, 12526 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:29:57,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12271 states. [2022-02-10 22:29:57,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12271 to 7534. [2022-02-10 22:29:57,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7533 states have (on average 2.6456922872693482) internal successors, (19930), 7533 states have internal predecessors, (19930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:57,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 19930 transitions. [2022-02-10 22:29:57,438 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 19930 transitions. Word has length 153 [2022-02-10 22:29:57,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:57,439 INFO L470 AbstractCegarLoop]: Abstraction has 7534 states and 19930 transitions. [2022-02-10 22:29:57,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:57,439 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 19930 transitions. [2022-02-10 22:29:57,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:29:57,446 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:57,446 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:57,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable558 [2022-02-10 22:29:57,446 INFO L402 AbstractCegarLoop]: === Iteration 560 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:57,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:57,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1111402528, now seen corresponding path program 6 times [2022-02-10 22:29:57,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:57,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190687811] [2022-02-10 22:29:57,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:57,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:57,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:57,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:57,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190687811] [2022-02-10 22:29:57,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190687811] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:57,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:57,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:29:57,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341345687] [2022-02-10 22:29:57,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:57,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:29:57,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:57,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:29:57,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:29:57,986 INFO L87 Difference]: Start difference. First operand 7534 states and 19930 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:02,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:02,731 INFO L93 Difference]: Finished difference Result 12839 states and 33977 transitions. [2022-02-10 22:30:02,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-10 22:30:02,731 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:30:02,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:02,748 INFO L225 Difference]: With dead ends: 12839 [2022-02-10 22:30:02,748 INFO L226 Difference]: Without dead ends: 12267 [2022-02-10 22:30:02,750 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1859 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1850, Invalid=7462, Unknown=0, NotChecked=0, Total=9312 [2022-02-10 22:30:02,750 INFO L934 BasicCegarLoop]: 591 mSDtfsCounter, 1309 mSDsluCounter, 12990 mSDsCounter, 0 mSdLazyCounter, 2090 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 13287 SdHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:02,750 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1309 Valid, 13287 Invalid, 2090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2090 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:30:02,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12267 states. [2022-02-10 22:30:02,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12267 to 7530. [2022-02-10 22:30:02,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7529 states have (on average 2.64563687076637) internal successors, (19919), 7529 states have internal predecessors, (19919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:02,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19919 transitions. [2022-02-10 22:30:02,867 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19919 transitions. Word has length 153 [2022-02-10 22:30:02,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:02,867 INFO L470 AbstractCegarLoop]: Abstraction has 7530 states and 19919 transitions. [2022-02-10 22:30:02,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:02,867 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19919 transitions. [2022-02-10 22:30:02,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:30:02,874 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:02,874 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:02,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable559 [2022-02-10 22:30:02,875 INFO L402 AbstractCegarLoop]: === Iteration 561 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:02,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:02,875 INFO L85 PathProgramCache]: Analyzing trace with hash -459109262, now seen corresponding path program 7 times [2022-02-10 22:30:02,875 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:02,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382033772] [2022-02-10 22:30:02,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:02,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:03,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:03,496 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:03,496 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382033772] [2022-02-10 22:30:03,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382033772] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:03,496 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:03,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:30:03,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106111875] [2022-02-10 22:30:03,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:03,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:30:03,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:03,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:30:03,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:30:03,497 INFO L87 Difference]: Start difference. First operand 7530 states and 19919 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:08,859 INFO L93 Difference]: Finished difference Result 12875 states and 34072 transitions. [2022-02-10 22:30:08,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-10 22:30:08,859 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:30:08,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:08,875 INFO L225 Difference]: With dead ends: 12875 [2022-02-10 22:30:08,875 INFO L226 Difference]: Without dead ends: 12263 [2022-02-10 22:30:08,876 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2537 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=2292, Invalid=9050, Unknown=0, NotChecked=0, Total=11342 [2022-02-10 22:30:08,876 INFO L934 BasicCegarLoop]: 600 mSDtfsCounter, 1393 mSDsluCounter, 13162 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 13466 SdHoareTripleChecker+Invalid, 2081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:08,877 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1393 Valid, 13466 Invalid, 2081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:30:08,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12263 states. [2022-02-10 22:30:08,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12263 to 7526. [2022-02-10 22:30:08,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7525 states have (on average 2.645581395348837) internal successors, (19908), 7525 states have internal predecessors, (19908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:08,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19908 transitions. [2022-02-10 22:30:08,981 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19908 transitions. Word has length 153 [2022-02-10 22:30:08,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:08,981 INFO L470 AbstractCegarLoop]: Abstraction has 7526 states and 19908 transitions. [2022-02-10 22:30:08,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:08,982 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19908 transitions. [2022-02-10 22:30:08,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:30:08,988 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:08,988 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:08,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable560 [2022-02-10 22:30:08,989 INFO L402 AbstractCegarLoop]: === Iteration 562 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:08,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:08,989 INFO L85 PathProgramCache]: Analyzing trace with hash 750574982, now seen corresponding path program 8 times [2022-02-10 22:30:08,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:08,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943869214] [2022-02-10 22:30:08,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:08,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:09,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:09,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:09,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943869214] [2022-02-10 22:30:09,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943869214] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:09,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:09,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:30:09,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766201228] [2022-02-10 22:30:09,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:09,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:30:09,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:09,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:30:09,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:30:09,604 INFO L87 Difference]: Start difference. First operand 7526 states and 19908 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:15,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:15,756 INFO L93 Difference]: Finished difference Result 12991 states and 34379 transitions. [2022-02-10 22:30:15,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-02-10 22:30:15,756 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:30:15,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:15,772 INFO L225 Difference]: With dead ends: 12991 [2022-02-10 22:30:15,773 INFO L226 Difference]: Without dead ends: 12251 [2022-02-10 22:30:15,774 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3284 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=2804, Invalid=10768, Unknown=0, NotChecked=0, Total=13572 [2022-02-10 22:30:15,774 INFO L934 BasicCegarLoop]: 610 mSDtfsCounter, 1506 mSDsluCounter, 13327 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 13639 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:15,774 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1506 Valid, 13639 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2096 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:30:15,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12251 states. [2022-02-10 22:30:15,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12251 to 7514. [2022-02-10 22:30:15,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7514 states, 7513 states have (on average 2.645414614667909) internal successors, (19875), 7513 states have internal predecessors, (19875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:15,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7514 states to 7514 states and 19875 transitions. [2022-02-10 22:30:15,919 INFO L78 Accepts]: Start accepts. Automaton has 7514 states and 19875 transitions. Word has length 153 [2022-02-10 22:30:15,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:15,919 INFO L470 AbstractCegarLoop]: Abstraction has 7514 states and 19875 transitions. [2022-02-10 22:30:15,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:15,919 INFO L276 IsEmpty]: Start isEmpty. Operand 7514 states and 19875 transitions. [2022-02-10 22:30:15,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:30:15,926 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:15,926 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:15,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable561 [2022-02-10 22:30:15,926 INFO L402 AbstractCegarLoop]: === Iteration 563 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:15,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:15,927 INFO L85 PathProgramCache]: Analyzing trace with hash 7965528, now seen corresponding path program 9 times [2022-02-10 22:30:15,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:15,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867467624] [2022-02-10 22:30:15,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:15,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:16,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:16,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:16,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867467624] [2022-02-10 22:30:16,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867467624] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:16,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:16,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:30:16,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359026380] [2022-02-10 22:30:16,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:16,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:30:16,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:16,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:30:16,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:30:16,481 INFO L87 Difference]: Start difference. First operand 7514 states and 19875 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:23,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:23,082 INFO L93 Difference]: Finished difference Result 13019 states and 34452 transitions. [2022-02-10 22:30:23,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-02-10 22:30:23,082 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:30:23,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:23,098 INFO L225 Difference]: With dead ends: 13019 [2022-02-10 22:30:23,098 INFO L226 Difference]: Without dead ends: 12195 [2022-02-10 22:30:23,100 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3661 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=3192, Invalid=11570, Unknown=0, NotChecked=0, Total=14762 [2022-02-10 22:30:23,100 INFO L934 BasicCegarLoop]: 620 mSDtfsCounter, 1639 mSDsluCounter, 13488 mSDsCounter, 0 mSdLazyCounter, 2050 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1639 SdHoareTripleChecker+Valid, 13808 SdHoareTripleChecker+Invalid, 2050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:23,100 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1639 Valid, 13808 Invalid, 2050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2050 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:30:23,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12195 states. [2022-02-10 22:30:23,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12195 to 7458. [2022-02-10 22:30:23,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7458 states, 7457 states have (on average 2.6516025211210943) internal successors, (19773), 7457 states have internal predecessors, (19773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:23,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7458 states to 7458 states and 19773 transitions. [2022-02-10 22:30:23,208 INFO L78 Accepts]: Start accepts. Automaton has 7458 states and 19773 transitions. Word has length 153 [2022-02-10 22:30:23,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:23,208 INFO L470 AbstractCegarLoop]: Abstraction has 7458 states and 19773 transitions. [2022-02-10 22:30:23,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:23,208 INFO L276 IsEmpty]: Start isEmpty. Operand 7458 states and 19773 transitions. [2022-02-10 22:30:23,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:30:23,216 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:23,216 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:23,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable562 [2022-02-10 22:30:23,216 INFO L402 AbstractCegarLoop]: === Iteration 564 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:23,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:23,217 INFO L85 PathProgramCache]: Analyzing trace with hash -545555932, now seen corresponding path program 10 times [2022-02-10 22:30:23,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:23,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106503273] [2022-02-10 22:30:23,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:23,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:23,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:23,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:23,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106503273] [2022-02-10 22:30:23,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106503273] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:23,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:23,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:30:23,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620161157] [2022-02-10 22:30:23,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:23,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:30:23,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:23,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:30:23,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:30:23,793 INFO L87 Difference]: Start difference. First operand 7458 states and 19773 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:31,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:31,669 INFO L93 Difference]: Finished difference Result 13392 states and 35480 transitions. [2022-02-10 22:30:31,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-10 22:30:31,670 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:30:31,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:31,683 INFO L225 Difference]: With dead ends: 13392 [2022-02-10 22:30:31,683 INFO L226 Difference]: Without dead ends: 12048 [2022-02-10 22:30:31,685 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4573 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=4042, Invalid=13250, Unknown=0, NotChecked=0, Total=17292 [2022-02-10 22:30:31,685 INFO L934 BasicCegarLoop]: 641 mSDtfsCounter, 1987 mSDsluCounter, 13035 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 13391 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:31,685 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1987 Valid, 13391 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:30:31,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12048 states. [2022-02-10 22:30:31,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12048 to 7442. [2022-02-10 22:30:31,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7442 states, 7441 states have (on average 2.651928504233302) internal successors, (19733), 7441 states have internal predecessors, (19733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:31,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7442 states to 7442 states and 19733 transitions. [2022-02-10 22:30:31,788 INFO L78 Accepts]: Start accepts. Automaton has 7442 states and 19733 transitions. Word has length 153 [2022-02-10 22:30:31,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:31,788 INFO L470 AbstractCegarLoop]: Abstraction has 7442 states and 19733 transitions. [2022-02-10 22:30:31,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 7442 states and 19733 transitions. [2022-02-10 22:30:31,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:30:31,796 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:31,796 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:31,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable563 [2022-02-10 22:30:31,796 INFO L402 AbstractCegarLoop]: === Iteration 565 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:31,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:31,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1326802646, now seen corresponding path program 11 times [2022-02-10 22:30:31,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:31,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488662836] [2022-02-10 22:30:31,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:31,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:32,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:32,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:32,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488662836] [2022-02-10 22:30:32,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488662836] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:32,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:32,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:30:32,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130364232] [2022-02-10 22:30:32,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:32,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:30:32,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:32,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:30:32,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:30:32,338 INFO L87 Difference]: Start difference. First operand 7442 states and 19733 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:39,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:39,795 INFO L93 Difference]: Finished difference Result 14889 states and 39393 transitions. [2022-02-10 22:30:39,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-02-10 22:30:39,796 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:30:39,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:39,814 INFO L225 Difference]: With dead ends: 14889 [2022-02-10 22:30:39,814 INFO L226 Difference]: Without dead ends: 13601 [2022-02-10 22:30:39,816 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=3656, Invalid=12346, Unknown=0, NotChecked=0, Total=16002 [2022-02-10 22:30:39,816 INFO L934 BasicCegarLoop]: 635 mSDtfsCounter, 2069 mSDsluCounter, 12969 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 13320 SdHoareTripleChecker+Invalid, 2069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:39,816 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2069 Valid, 13320 Invalid, 2069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:30:39,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13601 states. [2022-02-10 22:30:39,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13601 to 7550. [2022-02-10 22:30:39,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7550 states, 7549 states have (on average 2.6464432375149025) internal successors, (19978), 7549 states have internal predecessors, (19978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:39,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7550 states to 7550 states and 19978 transitions. [2022-02-10 22:30:39,974 INFO L78 Accepts]: Start accepts. Automaton has 7550 states and 19978 transitions. Word has length 153 [2022-02-10 22:30:39,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:39,975 INFO L470 AbstractCegarLoop]: Abstraction has 7550 states and 19978 transitions. [2022-02-10 22:30:39,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:39,975 INFO L276 IsEmpty]: Start isEmpty. Operand 7550 states and 19978 transitions. [2022-02-10 22:30:39,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:30:39,981 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:39,981 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:39,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable564 [2022-02-10 22:30:39,982 INFO L402 AbstractCegarLoop]: === Iteration 566 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:39,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:39,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1478308630, now seen corresponding path program 12 times [2022-02-10 22:30:39,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:39,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631212872] [2022-02-10 22:30:39,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:39,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:40,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:40,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:40,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631212872] [2022-02-10 22:30:40,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631212872] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:40,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:40,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:30:40,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068999389] [2022-02-10 22:30:40,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:40,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:30:40,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:40,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:30:40,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:30:40,539 INFO L87 Difference]: Start difference. First operand 7550 states and 19978 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:44,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:44,123 INFO L93 Difference]: Finished difference Result 13503 states and 35769 transitions. [2022-02-10 22:30:44,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:30:44,123 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:30:44,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:44,141 INFO L225 Difference]: With dead ends: 13503 [2022-02-10 22:30:44,141 INFO L226 Difference]: Without dead ends: 13012 [2022-02-10 22:30:44,142 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1151, Invalid=3961, Unknown=0, NotChecked=0, Total=5112 [2022-02-10 22:30:44,142 INFO L934 BasicCegarLoop]: 564 mSDtfsCounter, 1135 mSDsluCounter, 12303 mSDsCounter, 0 mSdLazyCounter, 2143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 12581 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:44,142 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1135 Valid, 12581 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2143 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:30:44,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13012 states. [2022-02-10 22:30:44,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13012 to 7582. [2022-02-10 22:30:44,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7582 states, 7581 states have (on average 2.646352723915051) internal successors, (20062), 7581 states have internal predecessors, (20062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:44,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7582 states to 7582 states and 20062 transitions. [2022-02-10 22:30:44,257 INFO L78 Accepts]: Start accepts. Automaton has 7582 states and 20062 transitions. Word has length 153 [2022-02-10 22:30:44,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:44,258 INFO L470 AbstractCegarLoop]: Abstraction has 7582 states and 20062 transitions. [2022-02-10 22:30:44,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:44,258 INFO L276 IsEmpty]: Start isEmpty. Operand 7582 states and 20062 transitions. [2022-02-10 22:30:44,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:30:44,265 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:44,265 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:44,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable565 [2022-02-10 22:30:44,265 INFO L402 AbstractCegarLoop]: === Iteration 567 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:44,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:44,265 INFO L85 PathProgramCache]: Analyzing trace with hash 149214488, now seen corresponding path program 13 times [2022-02-10 22:30:44,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:44,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087593206] [2022-02-10 22:30:44,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:44,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:44,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:44,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:44,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087593206] [2022-02-10 22:30:44,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087593206] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:44,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:44,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:30:44,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85379943] [2022-02-10 22:30:44,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:44,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:30:44,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:44,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:30:44,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:30:44,781 INFO L87 Difference]: Start difference. First operand 7582 states and 20062 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:48,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:48,390 INFO L93 Difference]: Finished difference Result 13500 states and 35759 transitions. [2022-02-10 22:30:48,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 22:30:48,391 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:30:48,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:48,409 INFO L225 Difference]: With dead ends: 13500 [2022-02-10 22:30:48,409 INFO L226 Difference]: Without dead ends: 13008 [2022-02-10 22:30:48,410 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1189, Invalid=4663, Unknown=0, NotChecked=0, Total=5852 [2022-02-10 22:30:48,410 INFO L934 BasicCegarLoop]: 573 mSDtfsCounter, 1161 mSDsluCounter, 12484 mSDsCounter, 0 mSdLazyCounter, 2162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 12769 SdHoareTripleChecker+Invalid, 2162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:48,410 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 12769 Invalid, 2162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2162 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:30:48,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13008 states. [2022-02-10 22:30:48,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13008 to 7578. [2022-02-10 22:30:48,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7578 states, 7577 states have (on average 2.6462980071268314) internal successors, (20051), 7577 states have internal predecessors, (20051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:48,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7578 states to 7578 states and 20051 transitions. [2022-02-10 22:30:48,520 INFO L78 Accepts]: Start accepts. Automaton has 7578 states and 20051 transitions. Word has length 153 [2022-02-10 22:30:48,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:48,520 INFO L470 AbstractCegarLoop]: Abstraction has 7578 states and 20051 transitions. [2022-02-10 22:30:48,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:48,520 INFO L276 IsEmpty]: Start isEmpty. Operand 7578 states and 20051 transitions. [2022-02-10 22:30:48,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:30:48,527 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:48,527 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:48,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable566 [2022-02-10 22:30:48,527 INFO L402 AbstractCegarLoop]: === Iteration 568 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:48,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:48,527 INFO L85 PathProgramCache]: Analyzing trace with hash -971842852, now seen corresponding path program 14 times [2022-02-10 22:30:48,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:48,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689686066] [2022-02-10 22:30:48,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:48,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:49,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:49,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:49,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689686066] [2022-02-10 22:30:49,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689686066] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:49,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:49,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:30:49,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564386918] [2022-02-10 22:30:49,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:49,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:30:49,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:49,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:30:49,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:30:49,107 INFO L87 Difference]: Start difference. First operand 7578 states and 20051 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:53,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:53,287 INFO L93 Difference]: Finished difference Result 13536 states and 35854 transitions. [2022-02-10 22:30:53,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 22:30:53,287 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:30:53,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:53,303 INFO L225 Difference]: With dead ends: 13536 [2022-02-10 22:30:53,303 INFO L226 Difference]: Without dead ends: 13004 [2022-02-10 22:30:53,304 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1265 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1499, Invalid=5983, Unknown=0, NotChecked=0, Total=7482 [2022-02-10 22:30:53,304 INFO L934 BasicCegarLoop]: 582 mSDtfsCounter, 1236 mSDsluCounter, 12677 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 12969 SdHoareTripleChecker+Invalid, 2159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:53,304 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1236 Valid, 12969 Invalid, 2159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:30:53,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13004 states. [2022-02-10 22:30:53,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13004 to 7574. [2022-02-10 22:30:53,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7574 states, 7573 states have (on average 2.6462432325366434) internal successors, (20040), 7573 states have internal predecessors, (20040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:53,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7574 states to 7574 states and 20040 transitions. [2022-02-10 22:30:53,402 INFO L78 Accepts]: Start accepts. Automaton has 7574 states and 20040 transitions. Word has length 153 [2022-02-10 22:30:53,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:53,402 INFO L470 AbstractCegarLoop]: Abstraction has 7574 states and 20040 transitions. [2022-02-10 22:30:53,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:53,402 INFO L276 IsEmpty]: Start isEmpty. Operand 7574 states and 20040 transitions. [2022-02-10 22:30:53,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:30:53,409 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:53,409 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:53,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567 [2022-02-10 22:30:53,409 INFO L402 AbstractCegarLoop]: === Iteration 569 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:53,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:53,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1496978388, now seen corresponding path program 15 times [2022-02-10 22:30:53,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:53,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950094762] [2022-02-10 22:30:53,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:53,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:53,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:53,953 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:53,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950094762] [2022-02-10 22:30:53,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950094762] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:53,953 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:53,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:30:53,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742703196] [2022-02-10 22:30:53,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:53,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:30:53,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:53,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:30:53,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:30:53,954 INFO L87 Difference]: Start difference. First operand 7574 states and 20040 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:58,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:58,671 INFO L93 Difference]: Finished difference Result 13572 states and 35949 transitions. [2022-02-10 22:30:58,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-10 22:30:58,671 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:30:58,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:58,689 INFO L225 Difference]: With dead ends: 13572 [2022-02-10 22:30:58,689 INFO L226 Difference]: Without dead ends: 13000 [2022-02-10 22:30:58,691 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1845 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1879, Invalid=7433, Unknown=0, NotChecked=0, Total=9312 [2022-02-10 22:30:58,691 INFO L934 BasicCegarLoop]: 591 mSDtfsCounter, 1323 mSDsluCounter, 12262 mSDsCounter, 0 mSdLazyCounter, 2070 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 12576 SdHoareTripleChecker+Invalid, 2070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:58,691 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1323 Valid, 12576 Invalid, 2070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2070 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:30:58,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13000 states. [2022-02-10 22:30:58,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13000 to 7570. [2022-02-10 22:30:58,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7570 states, 7569 states have (on average 2.6461884000528473) internal successors, (20029), 7569 states have internal predecessors, (20029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7570 states to 7570 states and 20029 transitions. [2022-02-10 22:30:58,809 INFO L78 Accepts]: Start accepts. Automaton has 7570 states and 20029 transitions. Word has length 153 [2022-02-10 22:30:58,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:58,809 INFO L470 AbstractCegarLoop]: Abstraction has 7570 states and 20029 transitions. [2022-02-10 22:30:58,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:58,809 INFO L276 IsEmpty]: Start isEmpty. Operand 7570 states and 20029 transitions. [2022-02-10 22:30:58,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:30:58,817 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:58,817 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:58,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable568 [2022-02-10 22:30:58,817 INFO L402 AbstractCegarLoop]: === Iteration 570 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:58,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:58,817 INFO L85 PathProgramCache]: Analyzing trace with hash -844685122, now seen corresponding path program 16 times [2022-02-10 22:30:58,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:58,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093244263] [2022-02-10 22:30:58,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:58,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:59,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:59,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:59,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093244263] [2022-02-10 22:30:59,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093244263] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:59,358 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:59,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:30:59,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933191797] [2022-02-10 22:30:59,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:59,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:30:59,359 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:59,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:30:59,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:30:59,359 INFO L87 Difference]: Start difference. First operand 7570 states and 20029 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:04,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:04,858 INFO L93 Difference]: Finished difference Result 13608 states and 36044 transitions. [2022-02-10 22:31:04,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-10 22:31:04,859 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:31:04,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:04,873 INFO L225 Difference]: With dead ends: 13608 [2022-02-10 22:31:04,873 INFO L226 Difference]: Without dead ends: 12996 [2022-02-10 22:31:04,874 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2519 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=2329, Invalid=9013, Unknown=0, NotChecked=0, Total=11342 [2022-02-10 22:31:04,874 INFO L934 BasicCegarLoop]: 600 mSDtfsCounter, 1405 mSDsluCounter, 12449 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 12768 SdHoareTripleChecker+Invalid, 2066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:04,874 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1405 Valid, 12768 Invalid, 2066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:31:04,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12996 states. [2022-02-10 22:31:04,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12996 to 7566. [2022-02-10 22:31:04,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7566 states, 7565 states have (on average 2.646133509583609) internal successors, (20018), 7565 states have internal predecessors, (20018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:04,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7566 states to 7566 states and 20018 transitions. [2022-02-10 22:31:04,975 INFO L78 Accepts]: Start accepts. Automaton has 7566 states and 20018 transitions. Word has length 153 [2022-02-10 22:31:04,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:04,975 INFO L470 AbstractCegarLoop]: Abstraction has 7566 states and 20018 transitions. [2022-02-10 22:31:04,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:04,975 INFO L276 IsEmpty]: Start isEmpty. Operand 7566 states and 20018 transitions. [2022-02-10 22:31:04,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:31:04,982 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:04,982 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:04,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable569 [2022-02-10 22:31:04,982 INFO L402 AbstractCegarLoop]: === Iteration 571 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:04,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:04,983 INFO L85 PathProgramCache]: Analyzing trace with hash 364999122, now seen corresponding path program 17 times [2022-02-10 22:31:04,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:04,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411605702] [2022-02-10 22:31:04,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:04,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:05,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:31:05,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:05,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411605702] [2022-02-10 22:31:05,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411605702] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:05,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:05,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:31:05,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766241176] [2022-02-10 22:31:05,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:05,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:31:05,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:05,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:31:05,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:31:05,473 INFO L87 Difference]: Start difference. First operand 7566 states and 20018 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:11,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:11,716 INFO L93 Difference]: Finished difference Result 13724 states and 36351 transitions. [2022-02-10 22:31:11,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-02-10 22:31:11,716 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:31:11,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:11,733 INFO L225 Difference]: With dead ends: 13724 [2022-02-10 22:31:11,733 INFO L226 Difference]: Without dead ends: 12984 [2022-02-10 22:31:11,735 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3262 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=2849, Invalid=10723, Unknown=0, NotChecked=0, Total=13572 [2022-02-10 22:31:11,735 INFO L934 BasicCegarLoop]: 610 mSDtfsCounter, 1504 mSDsluCounter, 13184 mSDsCounter, 0 mSdLazyCounter, 2161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 13498 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:11,735 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1504 Valid, 13498 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2161 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:31:11,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12984 states. [2022-02-10 22:31:11,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12984 to 7554. [2022-02-10 22:31:11,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7554 states, 7553 states have (on average 2.6459684893419833) internal successors, (19985), 7553 states have internal predecessors, (19985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:11,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7554 states to 7554 states and 19985 transitions. [2022-02-10 22:31:11,843 INFO L78 Accepts]: Start accepts. Automaton has 7554 states and 19985 transitions. Word has length 153 [2022-02-10 22:31:11,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:11,843 INFO L470 AbstractCegarLoop]: Abstraction has 7554 states and 19985 transitions. [2022-02-10 22:31:11,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:11,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7554 states and 19985 transitions. [2022-02-10 22:31:11,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:31:11,850 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:11,850 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:11,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable570 [2022-02-10 22:31:11,850 INFO L402 AbstractCegarLoop]: === Iteration 572 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:11,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:11,850 INFO L85 PathProgramCache]: Analyzing trace with hash -377610332, now seen corresponding path program 18 times [2022-02-10 22:31:11,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:11,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865007234] [2022-02-10 22:31:11,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:11,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:12,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:31:12,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:12,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865007234] [2022-02-10 22:31:12,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865007234] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:12,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:12,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:31:12,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980636869] [2022-02-10 22:31:12,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:12,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:31:12,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:12,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:31:12,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:31:12,375 INFO L87 Difference]: Start difference. First operand 7554 states and 19985 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:19,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:19,177 INFO L93 Difference]: Finished difference Result 13677 states and 36224 transitions. [2022-02-10 22:31:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-02-10 22:31:19,177 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:31:19,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:19,192 INFO L225 Difference]: With dead ends: 13677 [2022-02-10 22:31:19,192 INFO L226 Difference]: Without dead ends: 12853 [2022-02-10 22:31:19,193 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3637 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=3241, Invalid=11521, Unknown=0, NotChecked=0, Total=14762 [2022-02-10 22:31:19,193 INFO L934 BasicCegarLoop]: 620 mSDtfsCounter, 1611 mSDsluCounter, 13289 mSDsCounter, 0 mSdLazyCounter, 2099 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1611 SdHoareTripleChecker+Valid, 13613 SdHoareTripleChecker+Invalid, 2099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:19,193 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1611 Valid, 13613 Invalid, 2099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2099 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:31:19,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12853 states. [2022-02-10 22:31:19,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12853 to 7498. [2022-02-10 22:31:19,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7498 states, 7497 states have (on average 2.6457249566493264) internal successors, (19835), 7497 states have internal predecessors, (19835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:19,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7498 states to 7498 states and 19835 transitions. [2022-02-10 22:31:19,308 INFO L78 Accepts]: Start accepts. Automaton has 7498 states and 19835 transitions. Word has length 153 [2022-02-10 22:31:19,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:19,308 INFO L470 AbstractCegarLoop]: Abstraction has 7498 states and 19835 transitions. [2022-02-10 22:31:19,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:19,308 INFO L276 IsEmpty]: Start isEmpty. Operand 7498 states and 19835 transitions. [2022-02-10 22:31:19,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:31:19,318 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:19,318 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:19,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable571 [2022-02-10 22:31:19,318 INFO L402 AbstractCegarLoop]: === Iteration 573 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:19,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:19,319 INFO L85 PathProgramCache]: Analyzing trace with hash 144088952, now seen corresponding path program 19 times [2022-02-10 22:31:19,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:19,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681242904] [2022-02-10 22:31:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:19,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:19,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:31:19,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:19,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681242904] [2022-02-10 22:31:19,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681242904] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:19,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:19,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:31:19,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990626326] [2022-02-10 22:31:19,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:19,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:31:19,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:19,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:31:19,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:31:19,845 INFO L87 Difference]: Start difference. First operand 7498 states and 19835 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:23,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:23,506 INFO L93 Difference]: Finished difference Result 13381 states and 35446 transitions. [2022-02-10 22:31:23,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-10 22:31:23,506 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:31:23,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:23,524 INFO L225 Difference]: With dead ends: 13381 [2022-02-10 22:31:23,524 INFO L226 Difference]: Without dead ends: 12890 [2022-02-10 22:31:23,525 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1187, Invalid=4069, Unknown=0, NotChecked=0, Total=5256 [2022-02-10 22:31:23,525 INFO L934 BasicCegarLoop]: 556 mSDtfsCounter, 1127 mSDsluCounter, 11596 mSDsCounter, 0 mSdLazyCounter, 2045 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 11882 SdHoareTripleChecker+Invalid, 2045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:23,525 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1127 Valid, 11882 Invalid, 2045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2045 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:31:23,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12890 states. [2022-02-10 22:31:23,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12890 to 7542. [2022-02-10 22:31:23,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7542 states, 7541 states have (on average 2.6458029439066437) internal successors, (19952), 7541 states have internal predecessors, (19952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:23,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7542 states to 7542 states and 19952 transitions. [2022-02-10 22:31:23,644 INFO L78 Accepts]: Start accepts. Automaton has 7542 states and 19952 transitions. Word has length 153 [2022-02-10 22:31:23,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:23,644 INFO L470 AbstractCegarLoop]: Abstraction has 7542 states and 19952 transitions. [2022-02-10 22:31:23,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:23,644 INFO L276 IsEmpty]: Start isEmpty. Operand 7542 states and 19952 transitions. [2022-02-10 22:31:23,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:31:23,651 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:23,651 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:23,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable572 [2022-02-10 22:31:23,651 INFO L402 AbstractCegarLoop]: === Iteration 574 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:23,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:23,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1771612070, now seen corresponding path program 20 times [2022-02-10 22:31:23,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:23,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636268757] [2022-02-10 22:31:23,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:23,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:24,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:31:24,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:24,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636268757] [2022-02-10 22:31:24,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636268757] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:24,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:24,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:31:24,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910097064] [2022-02-10 22:31:24,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:24,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:31:24,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:24,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:31:24,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:31:24,217 INFO L87 Difference]: Start difference. First operand 7542 states and 19952 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:27,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:27,841 INFO L93 Difference]: Finished difference Result 13359 states and 35390 transitions. [2022-02-10 22:31:27,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 22:31:27,841 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:31:27,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:27,901 INFO L225 Difference]: With dead ends: 13359 [2022-02-10 22:31:27,901 INFO L226 Difference]: Without dead ends: 12867 [2022-02-10 22:31:27,901 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1208, Invalid=4644, Unknown=0, NotChecked=0, Total=5852 [2022-02-10 22:31:27,901 INFO L934 BasicCegarLoop]: 561 mSDtfsCounter, 1124 mSDsluCounter, 11128 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 11445 SdHoareTripleChecker+Invalid, 1961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:27,901 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 11445 Invalid, 1961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:31:27,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2022-02-10 22:31:27,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 7538. [2022-02-10 22:31:27,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7538 states, 7537 states have (on average 2.645747644951572) internal successors, (19941), 7537 states have internal predecessors, (19941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:27,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7538 states to 7538 states and 19941 transitions. [2022-02-10 22:31:27,997 INFO L78 Accepts]: Start accepts. Automaton has 7538 states and 19941 transitions. Word has length 153 [2022-02-10 22:31:27,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:27,997 INFO L470 AbstractCegarLoop]: Abstraction has 7538 states and 19941 transitions. [2022-02-10 22:31:27,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:27,997 INFO L276 IsEmpty]: Start isEmpty. Operand 7538 states and 19941 transitions. [2022-02-10 22:31:28,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:31:28,005 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:28,005 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:28,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable573 [2022-02-10 22:31:28,005 INFO L402 AbstractCegarLoop]: === Iteration 575 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:28,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:28,006 INFO L85 PathProgramCache]: Analyzing trace with hash 650554730, now seen corresponding path program 21 times [2022-02-10 22:31:28,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:28,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261746795] [2022-02-10 22:31:28,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:28,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:28,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:31:28,531 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:28,531 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261746795] [2022-02-10 22:31:28,531 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261746795] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:28,531 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:28,531 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:31:28,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383555418] [2022-02-10 22:31:28,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:28,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:31:28,532 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:28,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:31:28,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:31:28,532 INFO L87 Difference]: Start difference. First operand 7538 states and 19941 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:32,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:32,568 INFO L93 Difference]: Finished difference Result 13395 states and 35485 transitions. [2022-02-10 22:31:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 22:31:32,568 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:31:32,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:32,585 INFO L225 Difference]: With dead ends: 13395 [2022-02-10 22:31:32,585 INFO L226 Difference]: Without dead ends: 12863 [2022-02-10 22:31:32,586 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1322 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1521, Invalid=5961, Unknown=0, NotChecked=0, Total=7482 [2022-02-10 22:31:32,586 INFO L934 BasicCegarLoop]: 570 mSDtfsCounter, 1216 mSDsluCounter, 11864 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 12174 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:32,586 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1216 Valid, 12174 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:31:32,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12863 states. [2022-02-10 22:31:32,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12863 to 7534. [2022-02-10 22:31:32,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7533 states have (on average 2.6456922872693482) internal successors, (19930), 7533 states have internal predecessors, (19930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:32,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 19930 transitions. [2022-02-10 22:31:32,694 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 19930 transitions. Word has length 153 [2022-02-10 22:31:32,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:32,694 INFO L470 AbstractCegarLoop]: Abstraction has 7534 states and 19930 transitions. [2022-02-10 22:31:32,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:32,694 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 19930 transitions. [2022-02-10 22:31:32,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:31:32,701 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:32,701 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:32,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable574 [2022-02-10 22:31:32,701 INFO L402 AbstractCegarLoop]: === Iteration 576 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:32,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:32,702 INFO L85 PathProgramCache]: Analyzing trace with hash 125419194, now seen corresponding path program 22 times [2022-02-10 22:31:32,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:32,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256355690] [2022-02-10 22:31:32,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:32,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:33,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:31:33,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:33,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256355690] [2022-02-10 22:31:33,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256355690] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:33,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:33,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:31:33,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662338567] [2022-02-10 22:31:33,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:33,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:31:33,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:33,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:31:33,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:31:33,295 INFO L87 Difference]: Start difference. First operand 7534 states and 19930 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:38,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:38,085 INFO L93 Difference]: Finished difference Result 13431 states and 35580 transitions. [2022-02-10 22:31:38,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-10 22:31:38,085 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:31:38,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:38,103 INFO L225 Difference]: With dead ends: 13431 [2022-02-10 22:31:38,103 INFO L226 Difference]: Without dead ends: 12859 [2022-02-10 22:31:38,105 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1833 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1908, Invalid=7404, Unknown=0, NotChecked=0, Total=9312 [2022-02-10 22:31:38,105 INFO L934 BasicCegarLoop]: 579 mSDtfsCounter, 1287 mSDsluCounter, 12031 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 12348 SdHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:38,105 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1287 Valid, 12348 Invalid, 2043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:31:38,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12859 states. [2022-02-10 22:31:38,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12859 to 7530. [2022-02-10 22:31:38,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7529 states have (on average 2.64563687076637) internal successors, (19919), 7529 states have internal predecessors, (19919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:38,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19919 transitions. [2022-02-10 22:31:38,213 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19919 transitions. Word has length 153 [2022-02-10 22:31:38,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:38,213 INFO L470 AbstractCegarLoop]: Abstraction has 7530 states and 19919 transitions. [2022-02-10 22:31:38,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:38,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19919 transitions. [2022-02-10 22:31:38,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:31:38,220 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:38,220 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:38,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable575 [2022-02-10 22:31:38,220 INFO L402 AbstractCegarLoop]: === Iteration 577 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:38,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:38,220 INFO L85 PathProgramCache]: Analyzing trace with hash 777712460, now seen corresponding path program 23 times [2022-02-10 22:31:38,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:38,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025284490] [2022-02-10 22:31:38,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:38,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:38,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:31:38,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:38,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025284490] [2022-02-10 22:31:38,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025284490] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:38,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:38,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:31:38,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730556101] [2022-02-10 22:31:38,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:38,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:31:38,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:38,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:31:38,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:31:38,715 INFO L87 Difference]: Start difference. First operand 7530 states and 19919 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:44,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:44,200 INFO L93 Difference]: Finished difference Result 13467 states and 35675 transitions. [2022-02-10 22:31:44,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-10 22:31:44,200 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:31:44,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:44,217 INFO L225 Difference]: With dead ends: 13467 [2022-02-10 22:31:44,217 INFO L226 Difference]: Without dead ends: 12855 [2022-02-10 22:31:44,219 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2499 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=2367, Invalid=8975, Unknown=0, NotChecked=0, Total=11342 [2022-02-10 22:31:44,219 INFO L934 BasicCegarLoop]: 588 mSDtfsCounter, 1364 mSDsluCounter, 12243 mSDsCounter, 0 mSdLazyCounter, 2045 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 12563 SdHoareTripleChecker+Invalid, 2045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:44,219 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1364 Valid, 12563 Invalid, 2045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2045 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:31:44,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12855 states. [2022-02-10 22:31:44,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12855 to 7526. [2022-02-10 22:31:44,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7525 states have (on average 2.645581395348837) internal successors, (19908), 7525 states have internal predecessors, (19908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:44,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19908 transitions. [2022-02-10 22:31:44,323 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19908 transitions. Word has length 153 [2022-02-10 22:31:44,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:44,323 INFO L470 AbstractCegarLoop]: Abstraction has 7526 states and 19908 transitions. [2022-02-10 22:31:44,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:44,323 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19908 transitions. [2022-02-10 22:31:44,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:31:44,330 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:44,330 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:44,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable576 [2022-02-10 22:31:44,330 INFO L402 AbstractCegarLoop]: === Iteration 578 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:44,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:44,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1987396704, now seen corresponding path program 24 times [2022-02-10 22:31:44,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:44,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059077465] [2022-02-10 22:31:44,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:44,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:44,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:31:44,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:44,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059077465] [2022-02-10 22:31:44,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059077465] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:44,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:44,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:31:44,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917162022] [2022-02-10 22:31:44,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:44,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:31:44,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:44,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:31:44,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:31:44,992 INFO L87 Difference]: Start difference. First operand 7526 states and 19908 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:51,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:51,215 INFO L93 Difference]: Finished difference Result 13927 states and 36884 transitions. [2022-02-10 22:31:51,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-10 22:31:51,215 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:31:51,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:51,233 INFO L225 Difference]: With dead ends: 13927 [2022-02-10 22:31:51,233 INFO L226 Difference]: Without dead ends: 13187 [2022-02-10 22:31:51,235 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3327 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=2861, Invalid=10479, Unknown=0, NotChecked=0, Total=13340 [2022-02-10 22:31:51,235 INFO L934 BasicCegarLoop]: 595 mSDtfsCounter, 1527 mSDsluCounter, 11117 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 11474 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:51,235 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1527 Valid, 11474 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1876 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:31:51,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13187 states. [2022-02-10 22:31:51,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13187 to 7514. [2022-02-10 22:31:51,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7514 states, 7513 states have (on average 2.6443497936909357) internal successors, (19867), 7513 states have internal predecessors, (19867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:51,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7514 states to 7514 states and 19867 transitions. [2022-02-10 22:31:51,396 INFO L78 Accepts]: Start accepts. Automaton has 7514 states and 19867 transitions. Word has length 153 [2022-02-10 22:31:51,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:51,397 INFO L470 AbstractCegarLoop]: Abstraction has 7514 states and 19867 transitions. [2022-02-10 22:31:51,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:51,397 INFO L276 IsEmpty]: Start isEmpty. Operand 7514 states and 19867 transitions. [2022-02-10 22:31:51,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:31:51,403 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:51,403 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:51,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable577 [2022-02-10 22:31:51,403 INFO L402 AbstractCegarLoop]: === Iteration 579 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:51,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:51,404 INFO L85 PathProgramCache]: Analyzing trace with hash 618015740, now seen corresponding path program 25 times [2022-02-10 22:31:51,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:51,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049176754] [2022-02-10 22:31:51,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:51,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:51,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:31:51,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:51,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049176754] [2022-02-10 22:31:51,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049176754] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:51,943 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:51,943 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:31:51,943 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526575932] [2022-02-10 22:31:51,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:51,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:31:51,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:51,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:31:51,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:31:51,943 INFO L87 Difference]: Start difference. First operand 7514 states and 19867 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:55,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:55,528 INFO L93 Difference]: Finished difference Result 13309 states and 35236 transitions. [2022-02-10 22:31:55,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-10 22:31:55,528 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:31:55,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:55,546 INFO L225 Difference]: With dead ends: 13309 [2022-02-10 22:31:55,546 INFO L226 Difference]: Without dead ends: 12818 [2022-02-10 22:31:55,546 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1263, Invalid=4287, Unknown=0, NotChecked=0, Total=5550 [2022-02-10 22:31:55,547 INFO L934 BasicCegarLoop]: 559 mSDtfsCounter, 1119 mSDsluCounter, 11087 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 11389 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:55,547 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 11389 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1937 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:31:55,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12818 states. [2022-02-10 22:31:55,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12818 to 7534. [2022-02-10 22:31:55,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7533 states have (on average 2.6440992964290455) internal successors, (19918), 7533 states have internal predecessors, (19918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:55,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 19918 transitions. [2022-02-10 22:31:55,652 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 19918 transitions. Word has length 153 [2022-02-10 22:31:55,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:55,652 INFO L470 AbstractCegarLoop]: Abstraction has 7534 states and 19918 transitions. [2022-02-10 22:31:55,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:55,652 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 19918 transitions. [2022-02-10 22:31:55,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:31:55,659 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:55,659 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:55,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable578 [2022-02-10 22:31:55,659 INFO L402 AbstractCegarLoop]: === Iteration 580 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:55,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:55,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2049428438, now seen corresponding path program 26 times [2022-02-10 22:31:55,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:55,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772620352] [2022-02-10 22:31:55,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:55,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:56,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:31:56,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:56,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772620352] [2022-02-10 22:31:56,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772620352] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:56,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:56,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:31:56,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922717390] [2022-02-10 22:31:56,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:56,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:31:56,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:56,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:31:56,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:31:56,202 INFO L87 Difference]: Start difference. First operand 7534 states and 19918 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:59,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:59,695 INFO L93 Difference]: Finished difference Result 13275 states and 35147 transitions. [2022-02-10 22:31:59,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 22:31:59,695 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:31:59,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:59,713 INFO L225 Difference]: With dead ends: 13275 [2022-02-10 22:31:59,713 INFO L226 Difference]: Without dead ends: 12783 [2022-02-10 22:31:59,714 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1212, Invalid=4640, Unknown=0, NotChecked=0, Total=5852 [2022-02-10 22:31:59,714 INFO L934 BasicCegarLoop]: 561 mSDtfsCounter, 1109 mSDsluCounter, 11696 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 11997 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:59,714 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 11997 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2025 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:31:59,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12783 states. [2022-02-10 22:31:59,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12783 to 7530. [2022-02-10 22:31:59,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7529 states have (on average 2.6440430336034) internal successors, (19907), 7529 states have internal predecessors, (19907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:59,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19907 transitions. [2022-02-10 22:31:59,820 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19907 transitions. Word has length 153 [2022-02-10 22:31:59,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:59,821 INFO L470 AbstractCegarLoop]: Abstraction has 7530 states and 19907 transitions. [2022-02-10 22:31:59,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:59,821 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19907 transitions. [2022-02-10 22:31:59,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:31:59,828 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:59,828 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:59,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable579 [2022-02-10 22:31:59,828 INFO L402 AbstractCegarLoop]: === Iteration 581 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:59,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:59,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1124481518, now seen corresponding path program 27 times [2022-02-10 22:31:59,828 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:59,828 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412707995] [2022-02-10 22:31:59,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:59,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:00,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:00,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412707995] [2022-02-10 22:32:00,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412707995] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:00,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:00,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:32:00,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955827687] [2022-02-10 22:32:00,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:00,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:32:00,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:00,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:32:00,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:32:00,322 INFO L87 Difference]: Start difference. First operand 7530 states and 19907 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:04,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:04,591 INFO L93 Difference]: Finished difference Result 13311 states and 35242 transitions. [2022-02-10 22:32:04,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 22:32:04,591 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:32:04,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:04,606 INFO L225 Difference]: With dead ends: 13311 [2022-02-10 22:32:04,606 INFO L226 Difference]: Without dead ends: 12779 [2022-02-10 22:32:04,606 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1245 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1539, Invalid=5943, Unknown=0, NotChecked=0, Total=7482 [2022-02-10 22:32:04,607 INFO L934 BasicCegarLoop]: 570 mSDtfsCounter, 1195 mSDsluCounter, 12412 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 12708 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:04,607 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1195 Valid, 12708 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2107 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:32:04,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12779 states. [2022-02-10 22:32:04,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12779 to 7526. [2022-02-10 22:32:04,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7525 states have (on average 2.643986710963455) internal successors, (19896), 7525 states have internal predecessors, (19896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:04,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19896 transitions. [2022-02-10 22:32:04,702 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19896 transitions. Word has length 153 [2022-02-10 22:32:04,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:04,702 INFO L470 AbstractCegarLoop]: Abstraction has 7526 states and 19896 transitions. [2022-02-10 22:32:04,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:04,702 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19896 transitions. [2022-02-10 22:32:04,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:32:04,710 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:04,710 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:04,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable580 [2022-02-10 22:32:04,710 INFO L402 AbstractCegarLoop]: === Iteration 582 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:04,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:04,710 INFO L85 PathProgramCache]: Analyzing trace with hash 599345982, now seen corresponding path program 28 times [2022-02-10 22:32:04,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:04,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490015633] [2022-02-10 22:32:04,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:04,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:05,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:05,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:05,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490015633] [2022-02-10 22:32:05,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490015633] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:05,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:05,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:32:05,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491177547] [2022-02-10 22:32:05,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:05,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:32:05,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:05,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:32:05,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:32:05,198 INFO L87 Difference]: Start difference. First operand 7526 states and 19896 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:09,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:09,945 INFO L93 Difference]: Finished difference Result 13539 states and 35841 transitions. [2022-02-10 22:32:09,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-10 22:32:09,946 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:32:09,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:09,964 INFO L225 Difference]: With dead ends: 13539 [2022-02-10 22:32:09,964 INFO L226 Difference]: Without dead ends: 12967 [2022-02-10 22:32:09,965 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1763 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1893, Invalid=7227, Unknown=0, NotChecked=0, Total=9120 [2022-02-10 22:32:09,965 INFO L934 BasicCegarLoop]: 576 mSDtfsCounter, 1296 mSDsluCounter, 12005 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 12317 SdHoareTripleChecker+Invalid, 2019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:09,965 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1296 Valid, 12317 Invalid, 2019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:09,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12967 states. [2022-02-10 22:32:10,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12967 to 7522. [2022-02-10 22:32:10,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7522 states, 7521 states have (on average 2.643930328413775) internal successors, (19885), 7521 states have internal predecessors, (19885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:10,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7522 states to 7522 states and 19885 transitions. [2022-02-10 22:32:10,085 INFO L78 Accepts]: Start accepts. Automaton has 7522 states and 19885 transitions. Word has length 153 [2022-02-10 22:32:10,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:10,085 INFO L470 AbstractCegarLoop]: Abstraction has 7522 states and 19885 transitions. [2022-02-10 22:32:10,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:10,085 INFO L276 IsEmpty]: Start isEmpty. Operand 7522 states and 19885 transitions. [2022-02-10 22:32:10,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:32:10,092 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:10,093 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:10,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable581 [2022-02-10 22:32:10,093 INFO L402 AbstractCegarLoop]: === Iteration 583 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:10,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:10,093 INFO L85 PathProgramCache]: Analyzing trace with hash 409032578, now seen corresponding path program 29 times [2022-02-10 22:32:10,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:10,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434006921] [2022-02-10 22:32:10,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:10,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:10,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:10,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:10,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434006921] [2022-02-10 22:32:10,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434006921] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:10,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:10,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:32:10,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919101035] [2022-02-10 22:32:10,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:10,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:32:10,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:10,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:32:10,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:32:10,592 INFO L87 Difference]: Start difference. First operand 7522 states and 19885 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:14,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:14,440 INFO L93 Difference]: Finished difference Result 13285 states and 35166 transitions. [2022-02-10 22:32:14,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-10 22:32:14,440 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:32:14,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:14,458 INFO L225 Difference]: With dead ends: 13285 [2022-02-10 22:32:14,458 INFO L226 Difference]: Without dead ends: 12794 [2022-02-10 22:32:14,459 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1301, Invalid=4399, Unknown=0, NotChecked=0, Total=5700 [2022-02-10 22:32:14,459 INFO L934 BasicCegarLoop]: 561 mSDtfsCounter, 1125 mSDsluCounter, 11632 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 11923 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:14,459 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1125 Valid, 11923 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:14,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12794 states. [2022-02-10 22:32:14,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12794 to 7534. [2022-02-10 22:32:14,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7533 states have (on average 2.643568299482278) internal successors, (19914), 7533 states have internal predecessors, (19914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:14,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 19914 transitions. [2022-02-10 22:32:14,603 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 19914 transitions. Word has length 153 [2022-02-10 22:32:14,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:14,603 INFO L470 AbstractCegarLoop]: Abstraction has 7534 states and 19914 transitions. [2022-02-10 22:32:14,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:14,603 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 19914 transitions. [2022-02-10 22:32:14,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:32:14,610 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:14,610 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:14,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable582 [2022-02-10 22:32:14,610 INFO L402 AbstractCegarLoop]: === Iteration 584 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:14,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:14,611 INFO L85 PathProgramCache]: Analyzing trace with hash 2036555696, now seen corresponding path program 30 times [2022-02-10 22:32:14,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:14,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901227895] [2022-02-10 22:32:14,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:14,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:15,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:15,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:15,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901227895] [2022-02-10 22:32:15,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901227895] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:15,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:15,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:32:15,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291373001] [2022-02-10 22:32:15,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:15,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:32:15,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:15,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:32:15,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:32:15,121 INFO L87 Difference]: Start difference. First operand 7534 states and 19914 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:18,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:18,583 INFO L93 Difference]: Finished difference Result 13243 states and 35055 transitions. [2022-02-10 22:32:18,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 22:32:18,584 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:32:18,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:18,601 INFO L225 Difference]: With dead ends: 13243 [2022-02-10 22:32:18,601 INFO L226 Difference]: Without dead ends: 12751 [2022-02-10 22:32:18,602 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1217, Invalid=4635, Unknown=0, NotChecked=0, Total=5852 [2022-02-10 22:32:18,602 INFO L934 BasicCegarLoop]: 562 mSDtfsCounter, 1112 mSDsluCounter, 11150 mSDsCounter, 0 mSdLazyCounter, 1936 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 11466 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:18,602 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1112 Valid, 11466 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1936 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:18,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12751 states. [2022-02-10 22:32:18,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12751 to 7530. [2022-02-10 22:32:18,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7529 states have (on average 2.6435117545490767) internal successors, (19903), 7529 states have internal predecessors, (19903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:18,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19903 transitions. [2022-02-10 22:32:18,714 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19903 transitions. Word has length 153 [2022-02-10 22:32:18,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:18,714 INFO L470 AbstractCegarLoop]: Abstraction has 7530 states and 19903 transitions. [2022-02-10 22:32:18,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:18,714 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19903 transitions. [2022-02-10 22:32:18,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:32:18,721 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:18,721 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:18,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable583 [2022-02-10 22:32:18,721 INFO L402 AbstractCegarLoop]: === Iteration 585 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:18,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:18,721 INFO L85 PathProgramCache]: Analyzing trace with hash 915498356, now seen corresponding path program 31 times [2022-02-10 22:32:18,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:18,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410676693] [2022-02-10 22:32:18,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:18,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:19,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:19,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:19,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410676693] [2022-02-10 22:32:19,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410676693] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:19,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:19,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:32:19,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527548462] [2022-02-10 22:32:19,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:19,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:32:19,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:19,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:32:19,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:32:19,287 INFO L87 Difference]: Start difference. First operand 7530 states and 19903 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:23,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:23,414 INFO L93 Difference]: Finished difference Result 13411 states and 35497 transitions. [2022-02-10 22:32:23,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 22:32:23,414 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:32:23,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:23,433 INFO L225 Difference]: With dead ends: 13411 [2022-02-10 22:32:23,433 INFO L226 Difference]: Without dead ends: 12879 [2022-02-10 22:32:23,434 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1300 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1511, Invalid=5799, Unknown=0, NotChecked=0, Total=7310 [2022-02-10 22:32:23,434 INFO L934 BasicCegarLoop]: 568 mSDtfsCounter, 1201 mSDsluCounter, 11820 mSDsCounter, 0 mSdLazyCounter, 2012 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 12128 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:23,434 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1201 Valid, 12128 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2012 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:23,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12879 states. [2022-02-10 22:32:23,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12879 to 7526. [2022-02-10 22:32:23,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7525 states have (on average 2.643455149501661) internal successors, (19892), 7525 states have internal predecessors, (19892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:23,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19892 transitions. [2022-02-10 22:32:23,560 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19892 transitions. Word has length 153 [2022-02-10 22:32:23,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:23,560 INFO L470 AbstractCegarLoop]: Abstraction has 7526 states and 19892 transitions. [2022-02-10 22:32:23,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:23,561 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19892 transitions. [2022-02-10 22:32:23,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:32:23,570 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:23,570 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:23,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable584 [2022-02-10 22:32:23,570 INFO L402 AbstractCegarLoop]: === Iteration 586 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:23,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:23,570 INFO L85 PathProgramCache]: Analyzing trace with hash 988128080, now seen corresponding path program 32 times [2022-02-10 22:32:23,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:23,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661618566] [2022-02-10 22:32:23,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:23,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:24,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:24,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:24,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661618566] [2022-02-10 22:32:24,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661618566] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:24,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:24,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:32:24,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480754821] [2022-02-10 22:32:24,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:24,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:32:24,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:24,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:32:24,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:32:24,063 INFO L87 Difference]: Start difference. First operand 7526 states and 19892 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:28,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:28,550 INFO L93 Difference]: Finished difference Result 13194 states and 34918 transitions. [2022-02-10 22:32:28,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-10 22:32:28,551 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:32:28,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:28,567 INFO L225 Difference]: With dead ends: 13194 [2022-02-10 22:32:28,568 INFO L226 Difference]: Without dead ends: 12660 [2022-02-10 22:32:28,568 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 921 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1585, Invalid=5057, Unknown=0, NotChecked=0, Total=6642 [2022-02-10 22:32:28,568 INFO L934 BasicCegarLoop]: 564 mSDtfsCounter, 1177 mSDsluCounter, 12243 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 12522 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:28,569 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1177 Valid, 12522 Invalid, 2061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:28,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12660 states. [2022-02-10 22:32:28,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12660 to 7530. [2022-02-10 22:32:28,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7529 states have (on average 2.6429804754947535) internal successors, (19899), 7529 states have internal predecessors, (19899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:28,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19899 transitions. [2022-02-10 22:32:28,682 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19899 transitions. Word has length 153 [2022-02-10 22:32:28,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:28,682 INFO L470 AbstractCegarLoop]: Abstraction has 7530 states and 19899 transitions. [2022-02-10 22:32:28,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:28,682 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19899 transitions. [2022-02-10 22:32:28,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:32:28,690 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:28,690 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:28,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable585 [2022-02-10 22:32:28,690 INFO L402 AbstractCegarLoop]: === Iteration 587 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:28,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:28,690 INFO L85 PathProgramCache]: Analyzing trace with hash -569787270, now seen corresponding path program 33 times [2022-02-10 22:32:28,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:28,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122722472] [2022-02-10 22:32:28,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:28,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:29,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:29,230 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:29,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122722472] [2022-02-10 22:32:29,230 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122722472] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:29,230 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:29,230 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:32:29,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364757509] [2022-02-10 22:32:29,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:29,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:32:29,230 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:29,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:32:29,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:32:29,231 INFO L87 Difference]: Start difference. First operand 7530 states and 19899 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:33,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:33,038 INFO L93 Difference]: Finished difference Result 13202 states and 34936 transitions. [2022-02-10 22:32:33,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 22:32:33,038 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:32:33,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:33,055 INFO L225 Difference]: With dead ends: 13202 [2022-02-10 22:32:33,055 INFO L226 Difference]: Without dead ends: 12711 [2022-02-10 22:32:33,056 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 766 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1345, Invalid=4507, Unknown=0, NotChecked=0, Total=5852 [2022-02-10 22:32:33,056 INFO L934 BasicCegarLoop]: 564 mSDtfsCounter, 1164 mSDsluCounter, 11133 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 11439 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:33,056 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1164 Valid, 11439 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:33,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12711 states. [2022-02-10 22:32:33,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12711 to 7534. [2022-02-10 22:32:33,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7533 states have (on average 2.6425063055887428) internal successors, (19906), 7533 states have internal predecessors, (19906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:33,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 19906 transitions. [2022-02-10 22:32:33,164 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 19906 transitions. Word has length 153 [2022-02-10 22:32:33,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:33,164 INFO L470 AbstractCegarLoop]: Abstraction has 7534 states and 19906 transitions. [2022-02-10 22:32:33,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:33,164 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 19906 transitions. [2022-02-10 22:32:33,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:32:33,172 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:33,172 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:33,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable586 [2022-02-10 22:32:33,172 INFO L402 AbstractCegarLoop]: === Iteration 588 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:33,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:33,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1057735848, now seen corresponding path program 34 times [2022-02-10 22:32:33,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:33,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77318288] [2022-02-10 22:32:33,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:33,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:33,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:33,704 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:33,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77318288] [2022-02-10 22:32:33,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77318288] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:33,705 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:33,705 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:32:33,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435803592] [2022-02-10 22:32:33,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:33,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:32:33,705 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:33,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:32:33,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:32:33,705 INFO L87 Difference]: Start difference. First operand 7534 states and 19906 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:37,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:37,258 INFO L93 Difference]: Finished difference Result 13152 states and 34803 transitions. [2022-02-10 22:32:37,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-10 22:32:37,258 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:32:37,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:37,275 INFO L225 Difference]: With dead ends: 13152 [2022-02-10 22:32:37,275 INFO L226 Difference]: Without dead ends: 12648 [2022-02-10 22:32:37,276 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 815 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1181, Invalid=4519, Unknown=0, NotChecked=0, Total=5700 [2022-02-10 22:32:37,276 INFO L934 BasicCegarLoop]: 570 mSDtfsCounter, 1085 mSDsluCounter, 11808 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 12106 SdHoareTripleChecker+Invalid, 2013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:37,276 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1085 Valid, 12106 Invalid, 2013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:37,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12648 states. [2022-02-10 22:32:37,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12648 to 7518. [2022-02-10 22:32:37,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 7517 states have (on average 2.6438738858587203) internal successors, (19874), 7517 states have internal predecessors, (19874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:37,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 19874 transitions. [2022-02-10 22:32:37,384 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 19874 transitions. Word has length 153 [2022-02-10 22:32:37,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:37,384 INFO L470 AbstractCegarLoop]: Abstraction has 7518 states and 19874 transitions. [2022-02-10 22:32:37,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:37,385 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 19874 transitions. [2022-02-10 22:32:37,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:32:37,392 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:37,392 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:37,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable587 [2022-02-10 22:32:37,392 INFO L402 AbstractCegarLoop]: === Iteration 589 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:37,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:37,392 INFO L85 PathProgramCache]: Analyzing trace with hash -202548836, now seen corresponding path program 35 times [2022-02-10 22:32:37,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:37,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12715163] [2022-02-10 22:32:37,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:37,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:37,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:37,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:37,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12715163] [2022-02-10 22:32:37,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12715163] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:37,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:37,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:32:37,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246135258] [2022-02-10 22:32:37,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:37,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:32:37,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:37,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:32:37,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:32:37,909 INFO L87 Difference]: Start difference. First operand 7518 states and 19874 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:41,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:41,566 INFO L93 Difference]: Finished difference Result 13214 states and 34977 transitions. [2022-02-10 22:32:41,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-10 22:32:41,566 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:32:41,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:41,583 INFO L225 Difference]: With dead ends: 13214 [2022-02-10 22:32:41,583 INFO L226 Difference]: Without dead ends: 12723 [2022-02-10 22:32:41,584 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1223, Invalid=4179, Unknown=0, NotChecked=0, Total=5402 [2022-02-10 22:32:41,584 INFO L934 BasicCegarLoop]: 558 mSDtfsCounter, 1173 mSDsluCounter, 11624 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 11911 SdHoareTripleChecker+Invalid, 2004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:41,584 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 11911 Invalid, 2004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:41,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12723 states. [2022-02-10 22:32:41,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12723 to 7534. [2022-02-10 22:32:41,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7533 states have (on average 2.643568299482278) internal successors, (19914), 7533 states have internal predecessors, (19914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:41,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 19914 transitions. [2022-02-10 22:32:41,689 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 19914 transitions. Word has length 153 [2022-02-10 22:32:41,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:41,690 INFO L470 AbstractCegarLoop]: Abstraction has 7534 states and 19914 transitions. [2022-02-10 22:32:41,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:41,690 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 19914 transitions. [2022-02-10 22:32:41,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:32:41,697 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:41,697 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:41,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable588 [2022-02-10 22:32:41,697 INFO L402 AbstractCegarLoop]: === Iteration 590 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:41,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:41,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1424974282, now seen corresponding path program 36 times [2022-02-10 22:32:41,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:41,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276361224] [2022-02-10 22:32:41,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:41,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:42,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:42,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:42,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276361224] [2022-02-10 22:32:42,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276361224] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:42,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:42,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:32:42,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390340851] [2022-02-10 22:32:42,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:42,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:32:42,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:42,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:32:42,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:32:42,229 INFO L87 Difference]: Start difference. First operand 7534 states and 19914 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:45,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:45,792 INFO L93 Difference]: Finished difference Result 13192 states and 34921 transitions. [2022-02-10 22:32:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 22:32:45,793 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:32:45,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:45,811 INFO L225 Difference]: With dead ends: 13192 [2022-02-10 22:32:45,812 INFO L226 Difference]: Without dead ends: 12700 [2022-02-10 22:32:45,813 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1213, Invalid=4639, Unknown=0, NotChecked=0, Total=5852 [2022-02-10 22:32:45,813 INFO L934 BasicCegarLoop]: 567 mSDtfsCounter, 1120 mSDsluCounter, 11217 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 11527 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:45,813 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1120 Valid, 11527 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1941 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:45,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12700 states. [2022-02-10 22:32:45,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12700 to 7530. [2022-02-10 22:32:45,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7529 states have (on average 2.6435117545490767) internal successors, (19903), 7529 states have internal predecessors, (19903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:45,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19903 transitions. [2022-02-10 22:32:45,921 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19903 transitions. Word has length 153 [2022-02-10 22:32:45,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:45,921 INFO L470 AbstractCegarLoop]: Abstraction has 7530 states and 19903 transitions. [2022-02-10 22:32:45,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:45,921 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19903 transitions. [2022-02-10 22:32:45,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:32:45,928 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:45,928 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:45,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable589 [2022-02-10 22:32:45,928 INFO L402 AbstractCegarLoop]: === Iteration 591 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:45,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:45,928 INFO L85 PathProgramCache]: Analyzing trace with hash 303916942, now seen corresponding path program 37 times [2022-02-10 22:32:45,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:45,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485439403] [2022-02-10 22:32:45,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:45,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:46,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:46,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:46,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485439403] [2022-02-10 22:32:46,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485439403] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:46,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:46,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:32:46,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114316356] [2022-02-10 22:32:46,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:46,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:32:46,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:46,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:32:46,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:32:46,440 INFO L87 Difference]: Start difference. First operand 7530 states and 19903 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:50,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:50,520 INFO L93 Difference]: Finished difference Result 13228 states and 35016 transitions. [2022-02-10 22:32:50,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 22:32:50,521 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:32:50,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:50,536 INFO L225 Difference]: With dead ends: 13228 [2022-02-10 22:32:50,536 INFO L226 Difference]: Without dead ends: 12696 [2022-02-10 22:32:50,536 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1318 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1531, Invalid=5951, Unknown=0, NotChecked=0, Total=7482 [2022-02-10 22:32:50,537 INFO L934 BasicCegarLoop]: 576 mSDtfsCounter, 1189 mSDsluCounter, 11447 mSDsCounter, 0 mSdLazyCounter, 1942 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 11760 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:50,537 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1189 Valid, 11760 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1942 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:50,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12696 states. [2022-02-10 22:32:50,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12696 to 7526. [2022-02-10 22:32:50,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7525 states have (on average 2.643455149501661) internal successors, (19892), 7525 states have internal predecessors, (19892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:50,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19892 transitions. [2022-02-10 22:32:50,636 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19892 transitions. Word has length 153 [2022-02-10 22:32:50,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:50,636 INFO L470 AbstractCegarLoop]: Abstraction has 7526 states and 19892 transitions. [2022-02-10 22:32:50,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:50,636 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19892 transitions. [2022-02-10 22:32:50,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:32:50,643 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:50,643 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:50,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable590 [2022-02-10 22:32:50,643 INFO L402 AbstractCegarLoop]: === Iteration 592 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:50,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:50,644 INFO L85 PathProgramCache]: Analyzing trace with hash -221218594, now seen corresponding path program 38 times [2022-02-10 22:32:50,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:50,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071386983] [2022-02-10 22:32:50,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:50,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:51,157 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:51,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071386983] [2022-02-10 22:32:51,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071386983] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:51,157 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:51,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:32:51,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120202369] [2022-02-10 22:32:51,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:51,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:32:51,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:51,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:32:51,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:32:51,158 INFO L87 Difference]: Start difference. First operand 7526 states and 19892 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:56,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:56,018 INFO L93 Difference]: Finished difference Result 13264 states and 35111 transitions. [2022-02-10 22:32:56,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-10 22:32:56,018 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:32:56,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:56,035 INFO L225 Difference]: With dead ends: 13264 [2022-02-10 22:32:56,036 INFO L226 Difference]: Without dead ends: 12692 [2022-02-10 22:32:56,037 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1823 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1923, Invalid=7389, Unknown=0, NotChecked=0, Total=9312 [2022-02-10 22:32:56,037 INFO L934 BasicCegarLoop]: 585 mSDtfsCounter, 1264 mSDsluCounter, 12706 mSDsCounter, 0 mSdLazyCounter, 2105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 13000 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:56,037 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 13000 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2105 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:32:56,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12692 states. [2022-02-10 22:32:56,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12692 to 7522. [2022-02-10 22:32:56,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7522 states, 7521 states have (on average 2.6433984842441163) internal successors, (19881), 7521 states have internal predecessors, (19881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:56,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7522 states to 7522 states and 19881 transitions. [2022-02-10 22:32:56,146 INFO L78 Accepts]: Start accepts. Automaton has 7522 states and 19881 transitions. Word has length 153 [2022-02-10 22:32:56,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:56,146 INFO L470 AbstractCegarLoop]: Abstraction has 7522 states and 19881 transitions. [2022-02-10 22:32:56,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:56,146 INFO L276 IsEmpty]: Start isEmpty. Operand 7522 states and 19881 transitions. [2022-02-10 22:32:56,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:32:56,153 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:56,153 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:56,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable591 [2022-02-10 22:32:56,154 INFO L402 AbstractCegarLoop]: === Iteration 593 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:56,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:56,154 INFO L85 PathProgramCache]: Analyzing trace with hash 431074672, now seen corresponding path program 39 times [2022-02-10 22:32:56,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:56,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796980756] [2022-02-10 22:32:56,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:56,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:56,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:56,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:56,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796980756] [2022-02-10 22:32:56,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796980756] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:56,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:56,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:32:56,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368334902] [2022-02-10 22:32:56,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:56,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:32:56,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:56,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:32:56,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:32:56,668 INFO L87 Difference]: Start difference. First operand 7522 states and 19881 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:02,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:02,182 INFO L93 Difference]: Finished difference Result 13260 states and 35096 transitions. [2022-02-10 22:33:02,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-10 22:33:02,182 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:33:02,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:02,197 INFO L225 Difference]: With dead ends: 13260 [2022-02-10 22:33:02,197 INFO L226 Difference]: Without dead ends: 12632 [2022-02-10 22:33:02,197 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2426 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=2343, Invalid=8787, Unknown=0, NotChecked=0, Total=11130 [2022-02-10 22:33:02,198 INFO L934 BasicCegarLoop]: 591 mSDtfsCounter, 1342 mSDsluCounter, 12221 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 12534 SdHoareTripleChecker+Invalid, 2013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:02,198 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1342 Valid, 12534 Invalid, 2013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:33:02,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12632 states. [2022-02-10 22:33:02,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12632 to 7502. [2022-02-10 22:33:02,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7502 states, 7501 states have (on average 2.645247300359952) internal successors, (19842), 7501 states have internal predecessors, (19842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:02,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 19842 transitions. [2022-02-10 22:33:02,289 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 19842 transitions. Word has length 153 [2022-02-10 22:33:02,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:02,289 INFO L470 AbstractCegarLoop]: Abstraction has 7502 states and 19842 transitions. [2022-02-10 22:33:02,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:02,289 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 19842 transitions. [2022-02-10 22:33:02,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:33:02,296 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:02,296 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:02,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable592 [2022-02-10 22:33:02,296 INFO L402 AbstractCegarLoop]: === Iteration 594 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:02,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:02,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1385273000, now seen corresponding path program 40 times [2022-02-10 22:33:02,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:02,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809890694] [2022-02-10 22:33:02,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:02,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:02,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:02,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:02,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809890694] [2022-02-10 22:33:02,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809890694] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:02,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:02,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:33:02,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277465414] [2022-02-10 22:33:02,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:02,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:33:02,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:02,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:33:02,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:33:02,808 INFO L87 Difference]: Start difference. First operand 7502 states and 19842 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:06,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:06,198 INFO L93 Difference]: Finished difference Result 13230 states and 35033 transitions. [2022-02-10 22:33:06,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 22:33:06,199 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:33:06,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:06,216 INFO L225 Difference]: With dead ends: 13230 [2022-02-10 22:33:06,216 INFO L226 Difference]: Without dead ends: 12739 [2022-02-10 22:33:06,217 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1155, Invalid=3957, Unknown=0, NotChecked=0, Total=5112 [2022-02-10 22:33:06,217 INFO L934 BasicCegarLoop]: 556 mSDtfsCounter, 1146 mSDsluCounter, 11135 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 11431 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:06,217 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 11431 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:33:06,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12739 states. [2022-02-10 22:33:06,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12739 to 7534. [2022-02-10 22:33:06,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7533 states have (on average 2.6451612903225805) internal successors, (19926), 7533 states have internal predecessors, (19926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:06,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 19926 transitions. [2022-02-10 22:33:06,329 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 19926 transitions. Word has length 153 [2022-02-10 22:33:06,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:06,329 INFO L470 AbstractCegarLoop]: Abstraction has 7534 states and 19926 transitions. [2022-02-10 22:33:06,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:06,329 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 19926 transitions. [2022-02-10 22:33:06,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:33:06,336 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:06,336 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:06,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable593 [2022-02-10 22:33:06,336 INFO L402 AbstractCegarLoop]: === Iteration 595 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:06,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:06,336 INFO L85 PathProgramCache]: Analyzing trace with hash 242250118, now seen corresponding path program 41 times [2022-02-10 22:33:06,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:06,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653780534] [2022-02-10 22:33:06,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:06,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:06,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:06,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:06,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653780534] [2022-02-10 22:33:06,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653780534] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:06,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:06,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:33:06,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775198184] [2022-02-10 22:33:06,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:06,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:33:06,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:06,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:33:06,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:33:06,833 INFO L87 Difference]: Start difference. First operand 7534 states and 19926 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:10,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:10,285 INFO L93 Difference]: Finished difference Result 13227 states and 35023 transitions. [2022-02-10 22:33:10,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 22:33:10,285 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:33:10,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:10,303 INFO L225 Difference]: With dead ends: 13227 [2022-02-10 22:33:10,304 INFO L226 Difference]: Without dead ends: 12735 [2022-02-10 22:33:10,304 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1197, Invalid=4655, Unknown=0, NotChecked=0, Total=5852 [2022-02-10 22:33:10,305 INFO L934 BasicCegarLoop]: 565 mSDtfsCounter, 1160 mSDsluCounter, 11802 mSDsCounter, 0 mSdLazyCounter, 2022 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 12094 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:10,305 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 12094 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2022 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:33:10,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12735 states. [2022-02-10 22:33:10,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12735 to 7530. [2022-02-10 22:33:10,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7529 states have (on average 2.645105591712047) internal successors, (19915), 7529 states have internal predecessors, (19915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:10,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19915 transitions. [2022-02-10 22:33:10,416 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19915 transitions. Word has length 153 [2022-02-10 22:33:10,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:10,416 INFO L470 AbstractCegarLoop]: Abstraction has 7530 states and 19915 transitions. [2022-02-10 22:33:10,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:10,416 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19915 transitions. [2022-02-10 22:33:10,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:33:10,424 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:10,424 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:10,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable594 [2022-02-10 22:33:10,424 INFO L402 AbstractCegarLoop]: === Iteration 596 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:10,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:10,425 INFO L85 PathProgramCache]: Analyzing trace with hash -878807222, now seen corresponding path program 42 times [2022-02-10 22:33:10,425 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:10,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651966692] [2022-02-10 22:33:10,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:10,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:10,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:10,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:10,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651966692] [2022-02-10 22:33:10,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651966692] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:10,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:10,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:33:10,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499022306] [2022-02-10 22:33:10,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:10,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:33:10,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:10,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:33:10,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:33:10,958 INFO L87 Difference]: Start difference. First operand 7530 states and 19915 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:15,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:15,104 INFO L93 Difference]: Finished difference Result 13263 states and 35118 transitions. [2022-02-10 22:33:15,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 22:33:15,104 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:33:15,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:15,120 INFO L225 Difference]: With dead ends: 13263 [2022-02-10 22:33:15,120 INFO L226 Difference]: Without dead ends: 12731 [2022-02-10 22:33:15,121 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1260 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1509, Invalid=5973, Unknown=0, NotChecked=0, Total=7482 [2022-02-10 22:33:15,121 INFO L934 BasicCegarLoop]: 574 mSDtfsCounter, 1222 mSDsluCounter, 12560 mSDsCounter, 0 mSdLazyCounter, 2100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 12844 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:15,122 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1222 Valid, 12844 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2100 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:33:15,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12731 states. [2022-02-10 22:33:15,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12731 to 7526. [2022-02-10 22:33:15,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7525 states have (on average 2.645049833887043) internal successors, (19904), 7525 states have internal predecessors, (19904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:15,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19904 transitions. [2022-02-10 22:33:15,235 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19904 transitions. Word has length 153 [2022-02-10 22:33:15,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:15,235 INFO L470 AbstractCegarLoop]: Abstraction has 7526 states and 19904 transitions. [2022-02-10 22:33:15,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:15,236 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19904 transitions. [2022-02-10 22:33:15,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:33:15,242 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:15,242 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:15,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable595 [2022-02-10 22:33:15,243 INFO L402 AbstractCegarLoop]: === Iteration 597 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:15,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:15,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1403942758, now seen corresponding path program 43 times [2022-02-10 22:33:15,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:15,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608220071] [2022-02-10 22:33:15,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:15,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:15,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:15,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:15,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608220071] [2022-02-10 22:33:15,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608220071] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:15,838 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:15,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:33:15,839 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028594680] [2022-02-10 22:33:15,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:15,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:33:15,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:15,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:33:15,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:33:15,839 INFO L87 Difference]: Start difference. First operand 7526 states and 19904 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:20,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:20,518 INFO L93 Difference]: Finished difference Result 13299 states and 35213 transitions. [2022-02-10 22:33:20,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-10 22:33:20,518 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:33:20,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:20,535 INFO L225 Difference]: With dead ends: 13299 [2022-02-10 22:33:20,536 INFO L226 Difference]: Without dead ends: 12727 [2022-02-10 22:33:20,537 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1962 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1901, Invalid=7411, Unknown=0, NotChecked=0, Total=9312 [2022-02-10 22:33:20,537 INFO L934 BasicCegarLoop]: 583 mSDtfsCounter, 1299 mSDsluCounter, 11050 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 11382 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:20,537 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1299 Valid, 11382 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1860 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:33:20,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12727 states. [2022-02-10 22:33:20,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12727 to 7522. [2022-02-10 22:33:20,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7522 states, 7521 states have (on average 2.6449940167530914) internal successors, (19893), 7521 states have internal predecessors, (19893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:20,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7522 states to 7522 states and 19893 transitions. [2022-02-10 22:33:20,647 INFO L78 Accepts]: Start accepts. Automaton has 7522 states and 19893 transitions. Word has length 153 [2022-02-10 22:33:20,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:20,647 INFO L470 AbstractCegarLoop]: Abstraction has 7522 states and 19893 transitions. [2022-02-10 22:33:20,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:20,647 INFO L276 IsEmpty]: Start isEmpty. Operand 7522 states and 19893 transitions. [2022-02-10 22:33:20,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:33:20,654 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:20,654 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:20,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable596 [2022-02-10 22:33:20,654 INFO L402 AbstractCegarLoop]: === Iteration 598 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:20,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:20,654 INFO L85 PathProgramCache]: Analyzing trace with hash -751649492, now seen corresponding path program 44 times [2022-02-10 22:33:20,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:20,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841416846] [2022-02-10 22:33:20,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:20,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:21,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:21,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:21,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841416846] [2022-02-10 22:33:21,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841416846] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:21,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:21,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:33:21,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285334866] [2022-02-10 22:33:21,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:21,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:33:21,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:21,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:33:21,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:33:21,218 INFO L87 Difference]: Start difference. First operand 7522 states and 19893 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:26,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:26,737 INFO L93 Difference]: Finished difference Result 13335 states and 35308 transitions. [2022-02-10 22:33:26,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-10 22:33:26,737 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:33:26,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:26,752 INFO L225 Difference]: With dead ends: 13335 [2022-02-10 22:33:26,752 INFO L226 Difference]: Without dead ends: 12723 [2022-02-10 22:33:26,753 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2510 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=2347, Invalid=8995, Unknown=0, NotChecked=0, Total=11342 [2022-02-10 22:33:26,753 INFO L934 BasicCegarLoop]: 592 mSDtfsCounter, 1396 mSDsluCounter, 12306 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 12619 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:26,754 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1396 Valid, 12619 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:33:26,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12723 states. [2022-02-10 22:33:26,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12723 to 7518. [2022-02-10 22:33:26,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 7517 states have (on average 2.6449381402155114) internal successors, (19882), 7517 states have internal predecessors, (19882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:26,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 19882 transitions. [2022-02-10 22:33:26,861 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 19882 transitions. Word has length 153 [2022-02-10 22:33:26,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:26,862 INFO L470 AbstractCegarLoop]: Abstraction has 7518 states and 19882 transitions. [2022-02-10 22:33:26,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:26,862 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 19882 transitions. [2022-02-10 22:33:26,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:33:26,869 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:26,869 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:26,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable597 [2022-02-10 22:33:26,869 INFO L402 AbstractCegarLoop]: === Iteration 599 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:26,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:26,870 INFO L85 PathProgramCache]: Analyzing trace with hash 458034752, now seen corresponding path program 45 times [2022-02-10 22:33:26,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:26,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963060735] [2022-02-10 22:33:26,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:26,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:27,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:27,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:27,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963060735] [2022-02-10 22:33:27,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963060735] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:27,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:27,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:33:27,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865019932] [2022-02-10 22:33:27,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:27,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:33:27,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:27,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:33:27,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:33:27,405 INFO L87 Difference]: Start difference. First operand 7518 states and 19882 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:33,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:33,589 INFO L93 Difference]: Finished difference Result 13451 states and 35615 transitions. [2022-02-10 22:33:33,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-02-10 22:33:33,590 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:33:33,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:33,608 INFO L225 Difference]: With dead ends: 13451 [2022-02-10 22:33:33,608 INFO L226 Difference]: Without dead ends: 12711 [2022-02-10 22:33:33,610 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3415 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=2879, Invalid=10693, Unknown=0, NotChecked=0, Total=13572 [2022-02-10 22:33:33,610 INFO L934 BasicCegarLoop]: 602 mSDtfsCounter, 1482 mSDsluCounter, 11267 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 11618 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:33,610 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1482 Valid, 11618 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:33:33,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12711 states. [2022-02-10 22:33:33,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12711 to 7506. [2022-02-10 22:33:33,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7506 states, 7505 states have (on average 2.644770153231179) internal successors, (19849), 7505 states have internal predecessors, (19849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7506 states to 7506 states and 19849 transitions. [2022-02-10 22:33:33,736 INFO L78 Accepts]: Start accepts. Automaton has 7506 states and 19849 transitions. Word has length 153 [2022-02-10 22:33:33,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:33,737 INFO L470 AbstractCegarLoop]: Abstraction has 7506 states and 19849 transitions. [2022-02-10 22:33:33,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:33,737 INFO L276 IsEmpty]: Start isEmpty. Operand 7506 states and 19849 transitions. [2022-02-10 22:33:33,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:33:33,744 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:33,744 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:33,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable598 [2022-02-10 22:33:33,744 INFO L402 AbstractCegarLoop]: === Iteration 600 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:33,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:33,744 INFO L85 PathProgramCache]: Analyzing trace with hash -284574702, now seen corresponding path program 46 times [2022-02-10 22:33:33,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:33,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153665171] [2022-02-10 22:33:33,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:33,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:34,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:34,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:34,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153665171] [2022-02-10 22:33:34,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153665171] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:34,257 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:34,257 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:33:34,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818235372] [2022-02-10 22:33:34,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:34,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:33:34,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:34,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:33:34,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:33:34,258 INFO L87 Difference]: Start difference. First operand 7506 states and 19849 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:41,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:41,049 INFO L93 Difference]: Finished difference Result 13404 states and 35488 transitions. [2022-02-10 22:33:41,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-02-10 22:33:41,049 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-02-10 22:33:41,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:41,064 INFO L225 Difference]: With dead ends: 13404 [2022-02-10 22:33:41,064 INFO L226 Difference]: Without dead ends: 12576 [2022-02-10 22:33:41,066 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3625 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=3265, Invalid=11497, Unknown=0, NotChecked=0, Total=14762 [2022-02-10 22:33:41,066 INFO L934 BasicCegarLoop]: 609 mSDtfsCounter, 1598 mSDsluCounter, 12516 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 12844 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:41,066 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1598 Valid, 12844 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1979 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:33:41,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12576 states. [2022-02-10 22:33:41,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12576 to 7446. [2022-02-10 22:33:41,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7446 states, 7445 states have (on average 2.651443922095366) internal successors, (19740), 7445 states have internal predecessors, (19740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:41,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7446 states to 7446 states and 19740 transitions. [2022-02-10 22:33:41,162 INFO L78 Accepts]: Start accepts. Automaton has 7446 states and 19740 transitions. Word has length 153 [2022-02-10 22:33:41,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:41,162 INFO L470 AbstractCegarLoop]: Abstraction has 7446 states and 19740 transitions. [2022-02-10 22:33:41,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:41,162 INFO L276 IsEmpty]: Start isEmpty. Operand 7446 states and 19740 transitions. [2022-02-10 22:33:41,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-10 22:33:41,169 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:41,169 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:41,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable599 [2022-02-10 22:33:41,169 INFO L402 AbstractCegarLoop]: === Iteration 601 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:41,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:41,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1825233314, now seen corresponding path program 47 times [2022-02-10 22:33:41,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:41,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203203913] [2022-02-10 22:33:41,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:41,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:41,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:41,704 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:41,704 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203203913] [2022-02-10 22:33:41,704 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203203913] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:41,705 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:41,705 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-10 22:33:41,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546448669] [2022-02-10 22:33:41,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:41,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 22:33:41,705 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:41,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 22:33:41,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:33:41,705 INFO L87 Difference]: Start difference. First operand 7446 states and 19740 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-02-10 22:33:42,963 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-10 22:33:42,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:33:42,964 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=351, Invalid=1811, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:33:42,964 INFO L934 BasicCegarLoop]: 431 mSDtfsCounter, 624 mSDsluCounter, 8512 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 8827 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:42,964 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [624 Valid, 8827 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:33:42,964 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-10 22:33:42,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable600 [2022-02-10 22:33:42,965 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (7446states) and FLOYD_HOARE automaton (currently 20 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 63 for 5ms.. [2022-02-10 22:33:42,966 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-10 22:33:42,966 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-10 22:33:42,968 INFO L733 BasicCegarLoop]: Path program histogram: [252, 252, 47, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:42,969 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 22:33:42,969 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 22:33:42,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 10:33:42 BasicIcfg [2022-02-10 22:33:42,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 22:33:42,971 INFO L158 Benchmark]: Toolchain (without parser) took 689067.82ms. Allocated memory was 205.5MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 147.7MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-02-10 22:33:42,971 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 205.5MB. Free memory is still 164.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 22:33:42,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.98ms. Allocated memory was 205.5MB in the beginning and 268.4MB in the end (delta: 62.9MB). Free memory was 147.5MB in the beginning and 238.5MB in the end (delta: -91.1MB). Peak memory consumption was 7.8MB. Max. memory is 8.0GB. [2022-02-10 22:33:42,971 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.16ms. Allocated memory is still 268.4MB. Free memory was 238.5MB in the beginning and 236.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 22:33:42,971 INFO L158 Benchmark]: Boogie Preprocessor took 17.90ms. Allocated memory is still 268.4MB. Free memory was 236.4MB in the beginning and 235.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 22:33:42,971 INFO L158 Benchmark]: RCFGBuilder took 363.06ms. Allocated memory is still 268.4MB. Free memory was 235.4MB in the beginning and 218.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-02-10 22:33:42,971 INFO L158 Benchmark]: TraceAbstraction took 688379.37ms. Allocated memory was 268.4MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 218.1MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-02-10 22:33:42,972 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 205.5MB. Free memory is still 164.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 234.98ms. Allocated memory was 205.5MB in the beginning and 268.4MB in the end (delta: 62.9MB). Free memory was 147.5MB in the beginning and 238.5MB in the end (delta: -91.1MB). Peak memory consumption was 7.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.16ms. Allocated memory is still 268.4MB. Free memory was 238.5MB in the beginning and 236.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.90ms. Allocated memory is still 268.4MB. Free memory was 236.4MB in the beginning and 235.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 363.06ms. Allocated memory is still 268.4MB. Free memory was 235.4MB in the beginning and 218.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 688379.37ms. Allocated memory was 268.4MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 218.1MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (7446states) and FLOYD_HOARE automaton (currently 20 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 63 for 5ms.. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7446states) and FLOYD_HOARE automaton (currently 20 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 63 for 5ms.. - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7446states) and FLOYD_HOARE automaton (currently 20 states, 30 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 63 for 5ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 300 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 688.2s, OverallIterations: 601, TraceHistogramMax: 1, PathProgramHistogramMax: 252, EmptinessCheckTime: 5.9s, AutomataDifference: 517.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 216594 SdHoareTripleChecker+Valid, 114.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 216594 mSDsluCounter, 2171831 SdHoareTripleChecker+Invalid, 95.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2026939 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 285630 IncrementalHoareTripleChecker+Invalid, 285710 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 187724 mSDtfsCounter, 285630 mSolverCounterSat, 2.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38150 GetRequests, 12366 SyntacticMatches, 0 SemanticMatches, 25783 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291338 ImplicationChecksByTransitivity, 415.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11777occurred in iteration=0, InterpolantAutomatonStates: 21274, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 70.1s AutomataMinimizationTime, 600 MinimizatonAttempts, 964824 StatesRemovedByMinimization, 596 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 87.2s InterpolantComputationTime, 67217 NumberOfCodeBlocks, 67217 NumberOfCodeBlocksAsserted, 601 NumberOfCheckSat, 66616 ConstructedInterpolants, 0 QuantifiedInterpolants, 327729 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 601 InterpolantComputations, 601 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown