/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-exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:22:08,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:22:08,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:22:08,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 22:22:08,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 22:22:08,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 22:22:08,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 22:22:08,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 22:22:08,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 22:22:08,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 22:22:08,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 22:22:08,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 22:22:08,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 22:22:08,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 22:22:08,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 22:22:08,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 22:22:08,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 22:22:08,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 22:22:08,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 22:22:08,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 22:22:08,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 22:22:08,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 22:22:08,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 22:22:08,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 22:22:08,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 22:22:08,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:22:08,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:22:08,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:22:08,325 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 22:22:08,347 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:22:08,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:22:08,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:22:08,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:22:08,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:22:08,349 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:22:08,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:22:08,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:22:08,349 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:22:08,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:22:08,350 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:22:08,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:22:08,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:22:08,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:22:08,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:22:08,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:22:08,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:22:08,350 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:22:08,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:22:08,350 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:22:08,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:22:08,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:22:08,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:22:08,351 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:22:08,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:22:08,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:22:08,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:22:08,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:22:08,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:22:08,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:22:08,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:22:08,351 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:22:08,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:22:08,352 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:22:08,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:22:08,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:22:08,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:22:08,546 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:22:08,547 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:22:08,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2022-02-10 22:22:08,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7acc6e44/2907caf201694f749ebf654f8b2a0af9/FLAGefadbf992 [2022-02-10 22:22:08,947 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:22:08,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2022-02-10 22:22:08,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7acc6e44/2907caf201694f749ebf654f8b2a0af9/FLAGefadbf992 [2022-02-10 22:22:08,962 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7acc6e44/2907caf201694f749ebf654f8b2a0af9 [2022-02-10 22:22:08,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:22:08,965 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:22:08,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:22:08,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:22:08,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:22:08,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:22:08" (1/1) ... [2022-02-10 22:22:08,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d3cbe49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:08, skipping insertion in model container [2022-02-10 22:22:08,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:22:08" (1/1) ... [2022-02-10 22:22:08,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:22:08,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:22:09,119 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-exp-term-symm.wvr.c[2628,2641] [2022-02-10 22:22:09,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:22:09,126 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:22:09,146 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-exp-term-symm.wvr.c[2628,2641] [2022-02-10 22:22:09,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:22:09,156 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:22:09,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:09 WrapperNode [2022-02-10 22:22:09,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:22:09,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:22:09,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:22:09,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:22:09,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:09" (1/1) ... [2022-02-10 22:22:09,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:09" (1/1) ... [2022-02-10 22:22:09,187 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 128 [2022-02-10 22:22:09,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:22:09,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:22:09,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:22:09,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:22:09,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:09" (1/1) ... [2022-02-10 22:22:09,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:09" (1/1) ... [2022-02-10 22:22:09,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:09" (1/1) ... [2022-02-10 22:22:09,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:09" (1/1) ... [2022-02-10 22:22:09,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:09" (1/1) ... [2022-02-10 22:22:09,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:09" (1/1) ... [2022-02-10 22:22:09,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:09" (1/1) ... [2022-02-10 22:22:09,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:22:09,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:22:09,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:22:09,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:22:09,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:09" (1/1) ... [2022-02-10 22:22:09,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:22:09,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:22:09,246 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 22:22:09,260 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 22:22:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:22:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 22:22:09,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 22:22:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 22:22:09,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 22:22:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:22:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:22:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:22:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:22:09,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:22:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:22:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:22:09,286 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 22:22:09,342 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:22:09,343 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:22:09,560 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:22:09,568 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:22:09,568 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-10 22:22:09,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:22:09 BoogieIcfgContainer [2022-02-10 22:22:09,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:22:09,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:22:09,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:22:09,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:22:09,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:22:08" (1/3) ... [2022-02-10 22:22:09,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608669e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:22:09, skipping insertion in model container [2022-02-10 22:22:09,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:22:09" (2/3) ... [2022-02-10 22:22:09,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608669e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:22:09, skipping insertion in model container [2022-02-10 22:22:09,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:22:09" (3/3) ... [2022-02-10 22:22:09,574 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2022-02-10 22:22:09,578 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:22:09,578 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:22:09,578 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:22:09,578 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:22:09,623 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,623 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,623 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,624 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,624 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,624 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,624 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,624 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,624 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,625 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,625 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,625 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,625 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,625 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,625 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,625 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,625 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,626 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,626 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,626 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,626 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,626 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,626 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,626 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,626 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,627 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,627 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,627 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,627 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,627 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,627 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,627 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,627 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,627 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,628 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,628 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,628 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,628 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,628 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,628 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,628 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,628 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,629 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,629 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,629 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,629 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,632 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,632 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,632 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,632 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,632 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,633 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,633 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,633 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,633 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,634 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,634 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,634 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,634 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,634 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,634 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,634 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,635 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,635 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,635 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,635 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,635 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,635 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,636 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,636 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,636 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,636 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,636 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,636 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,636 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,637 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,637 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,637 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,637 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,637 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,637 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,637 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,637 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,638 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,638 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,638 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,638 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,638 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,638 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,639 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,639 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,639 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,639 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,639 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,640 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,641 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,641 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,641 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,641 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,641 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,642 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,642 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,642 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,642 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,642 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,642 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,642 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,643 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,643 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,643 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,643 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,643 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,643 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,643 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,643 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,643 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,644 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,644 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,644 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,644 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,644 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,644 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,644 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,645 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,645 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,645 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,645 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,645 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,645 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,645 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,645 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,645 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,646 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,646 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,646 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,646 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,646 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,646 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,646 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,646 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,647 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,647 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,647 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,647 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,647 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,647 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,648 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,648 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,648 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,648 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,648 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,648 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,648 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,649 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,649 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,649 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,649 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,649 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,649 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,650 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,650 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,650 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,650 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,650 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,650 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,650 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,651 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,651 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,651 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,651 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,651 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,651 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,651 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,651 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,652 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,652 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,652 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,652 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,652 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,652 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,652 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,653 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,653 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,653 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,653 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,654 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,654 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,654 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,656 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,656 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,657 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,657 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,657 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,657 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,657 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,657 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,657 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,657 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,657 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,658 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,658 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,659 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,659 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,659 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,660 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,660 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,660 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,660 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,660 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,660 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,660 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,660 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,660 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,661 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:22:09,663 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 22:22:09,691 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:22:09,696 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 22:22:09,696 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-10 22:22:09,704 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 168 places, 174 transitions, 364 flow [2022-02-10 22:22:09,862 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7151 states, 7150 states have (on average 2.8864335664335665) internal successors, (20638), 7150 states have internal predecessors, (20638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:09,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 7151 states, 7150 states have (on average 2.8864335664335665) internal successors, (20638), 7150 states have internal predecessors, (20638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:09,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-10 22:22:09,935 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:09,936 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] [2022-02-10 22:22:09,937 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:09,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:09,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1228508451, now seen corresponding path program 1 times [2022-02-10 22:22:09,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:09,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584260263] [2022-02-10 22:22:09,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:09,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:10,306 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 22:22:10,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:10,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584260263] [2022-02-10 22:22:10,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584260263] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:10,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:10,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 22:22:10,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397845651] [2022-02-10 22:22:10,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:10,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 22:22:10,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:10,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 22:22:10,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:22:10,367 INFO L87 Difference]: Start difference. First operand has 7151 states, 7150 states have (on average 2.8864335664335665) internal successors, (20638), 7150 states have internal predecessors, (20638), 0 states have call successors, (0), 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 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:10,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:10,673 INFO L93 Difference]: Finished difference Result 10047 states and 27493 transitions. [2022-02-10 22:22:10,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 22:22:10,676 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-02-10 22:22:10,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:10,733 INFO L225 Difference]: With dead ends: 10047 [2022-02-10 22:22:10,733 INFO L226 Difference]: Without dead ends: 8877 [2022-02-10 22:22:10,735 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-02-10 22:22:10,738 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 418 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:10,738 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 1259 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:10,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8877 states. [2022-02-10 22:22:10,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8877 to 6601. [2022-02-10 22:22:11,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6601 states, 6600 states have (on average 2.784090909090909) internal successors, (18375), 6600 states have internal predecessors, (18375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:11,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6601 states to 6601 states and 18375 transitions. [2022-02-10 22:22:11,029 INFO L78 Accepts]: Start accepts. Automaton has 6601 states and 18375 transitions. Word has length 85 [2022-02-10 22:22:11,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:11,030 INFO L470 AbstractCegarLoop]: Abstraction has 6601 states and 18375 transitions. [2022-02-10 22:22:11,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:11,035 INFO L276 IsEmpty]: Start isEmpty. Operand 6601 states and 18375 transitions. [2022-02-10 22:22:11,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-10 22:22:11,052 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:11,052 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] [2022-02-10 22:22:11,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:22:11,053 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:11,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:11,055 INFO L85 PathProgramCache]: Analyzing trace with hash 170552789, now seen corresponding path program 1 times [2022-02-10 22:22:11,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:11,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060750927] [2022-02-10 22:22:11,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:11,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:11,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:11,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:11,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060750927] [2022-02-10 22:22:11,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060750927] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:11,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:11,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 22:22:11,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148000180] [2022-02-10 22:22:11,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:11,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 22:22:11,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:11,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 22:22:11,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:22:11,167 INFO L87 Difference]: Start difference. First operand 6601 states and 18375 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:11,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:11,249 INFO L93 Difference]: Finished difference Result 8148 states and 22245 transitions. [2022-02-10 22:22:11,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 22:22:11,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-02-10 22:22:11,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:11,280 INFO L225 Difference]: With dead ends: 8148 [2022-02-10 22:22:11,281 INFO L226 Difference]: Without dead ends: 8148 [2022-02-10 22:22:11,281 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:22:11,282 INFO L934 BasicCegarLoop]: 211 mSDtfsCounter, 226 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:11,282 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 329 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:22:11,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8148 states. [2022-02-10 22:22:11,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8148 to 6867. [2022-02-10 22:22:11,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6867 states, 6866 states have (on average 2.7599766967666763) internal successors, (18950), 6866 states have internal predecessors, (18950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:11,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6867 states to 6867 states and 18950 transitions. [2022-02-10 22:22:11,471 INFO L78 Accepts]: Start accepts. Automaton has 6867 states and 18950 transitions. Word has length 87 [2022-02-10 22:22:11,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:11,471 INFO L470 AbstractCegarLoop]: Abstraction has 6867 states and 18950 transitions. [2022-02-10 22:22:11,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:11,472 INFO L276 IsEmpty]: Start isEmpty. Operand 6867 states and 18950 transitions. [2022-02-10 22:22:11,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-10 22:22:11,486 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:11,487 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:11,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:22:11,487 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:11,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:11,487 INFO L85 PathProgramCache]: Analyzing trace with hash -993683521, now seen corresponding path program 1 times [2022-02-10 22:22:11,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:11,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884848734] [2022-02-10 22:22:11,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:11,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:11,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:11,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:11,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884848734] [2022-02-10 22:22:11,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884848734] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:11,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:11,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 22:22:11,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375697973] [2022-02-10 22:22:11,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:11,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 22:22:11,554 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:11,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 22:22:11,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:22:11,555 INFO L87 Difference]: Start difference. First operand 6867 states and 18950 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:11,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:11,691 INFO L93 Difference]: Finished difference Result 9672 states and 26243 transitions. [2022-02-10 22:22:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 22:22:11,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-02-10 22:22:11,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:11,725 INFO L225 Difference]: With dead ends: 9672 [2022-02-10 22:22:11,725 INFO L226 Difference]: Without dead ends: 9672 [2022-02-10 22:22:11,725 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:22:11,730 INFO L934 BasicCegarLoop]: 228 mSDtfsCounter, 251 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:11,731 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 379 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:11,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9672 states. [2022-02-10 22:22:11,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9672 to 6885. [2022-02-10 22:22:11,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6885 states, 6884 states have (on average 2.745496804183614) internal successors, (18900), 6884 states have internal predecessors, (18900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:11,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6885 states to 6885 states and 18900 transitions. [2022-02-10 22:22:11,961 INFO L78 Accepts]: Start accepts. Automaton has 6885 states and 18900 transitions. Word has length 87 [2022-02-10 22:22:11,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:11,961 INFO L470 AbstractCegarLoop]: Abstraction has 6885 states and 18900 transitions. [2022-02-10 22:22:11,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:11,961 INFO L276 IsEmpty]: Start isEmpty. Operand 6885 states and 18900 transitions. [2022-02-10 22:22:11,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-10 22:22:11,973 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:11,973 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:11,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 22:22:11,973 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:11,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:11,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1203068365, now seen corresponding path program 2 times [2022-02-10 22:22:11,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:11,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169224845] [2022-02-10 22:22:11,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:11,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:12,021 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 22:22:12,021 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:12,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169224845] [2022-02-10 22:22:12,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169224845] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:12,022 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:12,022 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 22:22:12,022 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115917498] [2022-02-10 22:22:12,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:12,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 22:22:12,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:12,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 22:22:12,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:22:12,023 INFO L87 Difference]: Start difference. First operand 6885 states and 18900 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:12,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:12,086 INFO L93 Difference]: Finished difference Result 7730 states and 20793 transitions. [2022-02-10 22:22:12,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 22:22:12,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-02-10 22:22:12,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:12,105 INFO L225 Difference]: With dead ends: 7730 [2022-02-10 22:22:12,105 INFO L226 Difference]: Without dead ends: 7730 [2022-02-10 22:22:12,105 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:22:12,112 INFO L934 BasicCegarLoop]: 209 mSDtfsCounter, 250 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:12,113 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 303 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:22:12,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7730 states. [2022-02-10 22:22:12,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7730 to 7046. [2022-02-10 22:22:12,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7046 states, 7045 states have (on average 2.7144073811213625) internal successors, (19123), 7045 states have internal predecessors, (19123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:12,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7046 states to 7046 states and 19123 transitions. [2022-02-10 22:22:12,317 INFO L78 Accepts]: Start accepts. Automaton has 7046 states and 19123 transitions. Word has length 87 [2022-02-10 22:22:12,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:12,318 INFO L470 AbstractCegarLoop]: Abstraction has 7046 states and 19123 transitions. [2022-02-10 22:22:12,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:12,318 INFO L276 IsEmpty]: Start isEmpty. Operand 7046 states and 19123 transitions. [2022-02-10 22:22:12,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-10 22:22:12,332 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:12,333 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] [2022-02-10 22:22:12,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 22:22:12,333 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:12,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:12,333 INFO L85 PathProgramCache]: Analyzing trace with hash -958876555, now seen corresponding path program 3 times [2022-02-10 22:22:12,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:12,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321010757] [2022-02-10 22:22:12,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:12,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:12,382 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 22:22:12,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:12,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321010757] [2022-02-10 22:22:12,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321010757] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:12,383 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:12,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 22:22:12,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041673716] [2022-02-10 22:22:12,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:12,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 22:22:12,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:12,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 22:22:12,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:22:12,384 INFO L87 Difference]: Start difference. First operand 7046 states and 19123 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:12,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:12,483 INFO L93 Difference]: Finished difference Result 9884 states and 26268 transitions. [2022-02-10 22:22:12,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:22:12,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-02-10 22:22:12,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:12,504 INFO L225 Difference]: With dead ends: 9884 [2022-02-10 22:22:12,504 INFO L226 Difference]: Without dead ends: 9884 [2022-02-10 22:22:12,504 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:22:12,505 INFO L934 BasicCegarLoop]: 270 mSDtfsCounter, 260 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:12,506 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 494 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:12,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9884 states. [2022-02-10 22:22:12,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9884 to 7137. [2022-02-10 22:22:12,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7137 states, 7136 states have (on average 2.7058576233183858) internal successors, (19309), 7136 states have internal predecessors, (19309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:12,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7137 states to 7137 states and 19309 transitions. [2022-02-10 22:22:12,709 INFO L78 Accepts]: Start accepts. Automaton has 7137 states and 19309 transitions. Word has length 87 [2022-02-10 22:22:12,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:12,710 INFO L470 AbstractCegarLoop]: Abstraction has 7137 states and 19309 transitions. [2022-02-10 22:22:12,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:12,710 INFO L276 IsEmpty]: Start isEmpty. Operand 7137 states and 19309 transitions. [2022-02-10 22:22:12,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-10 22:22:12,720 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:12,721 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] [2022-02-10 22:22:12,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 22:22:12,721 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:12,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:12,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1113507785, now seen corresponding path program 2 times [2022-02-10 22:22:12,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:12,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591656469] [2022-02-10 22:22:12,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:12,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:12,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:12,789 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:12,789 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591656469] [2022-02-10 22:22:12,789 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591656469] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:12,789 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:12,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 22:22:12,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963351054] [2022-02-10 22:22:12,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:12,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 22:22:12,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:12,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 22:22:12,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:22:12,790 INFO L87 Difference]: Start difference. First operand 7137 states and 19309 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:12,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:12,848 INFO L93 Difference]: Finished difference Result 7758 states and 20803 transitions. [2022-02-10 22:22:12,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 22:22:12,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-02-10 22:22:12,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:12,865 INFO L225 Difference]: With dead ends: 7758 [2022-02-10 22:22:12,865 INFO L226 Difference]: Without dead ends: 7758 [2022-02-10 22:22:12,865 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:22:12,866 INFO L934 BasicCegarLoop]: 182 mSDtfsCounter, 286 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:12,866 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 276 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:22:12,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7758 states. [2022-02-10 22:22:12,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7758 to 7082. [2022-02-10 22:22:12,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7082 states, 7081 states have (on average 2.699759920915125) internal successors, (19117), 7081 states have internal predecessors, (19117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:13,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7082 states to 7082 states and 19117 transitions. [2022-02-10 22:22:13,054 INFO L78 Accepts]: Start accepts. Automaton has 7082 states and 19117 transitions. Word has length 87 [2022-02-10 22:22:13,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:13,054 INFO L470 AbstractCegarLoop]: Abstraction has 7082 states and 19117 transitions. [2022-02-10 22:22:13,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:13,054 INFO L276 IsEmpty]: Start isEmpty. Operand 7082 states and 19117 transitions. [2022-02-10 22:22:13,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:13,066 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:13,066 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] [2022-02-10 22:22:13,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 22:22:13,066 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:13,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:13,067 INFO L85 PathProgramCache]: Analyzing trace with hash -121906834, now seen corresponding path program 1 times [2022-02-10 22:22:13,067 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:13,067 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669522301] [2022-02-10 22:22:13,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:13,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:13,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:13,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:13,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669522301] [2022-02-10 22:22:13,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669522301] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:13,214 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:13,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:13,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040198711] [2022-02-10 22:22:13,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:13,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:13,215 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:13,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:13,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:13,215 INFO L87 Difference]: Start difference. First operand 7082 states and 19117 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:13,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:13,670 INFO L93 Difference]: Finished difference Result 8745 states and 23298 transitions. [2022-02-10 22:22:13,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:22:13,671 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:13,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:13,699 INFO L225 Difference]: With dead ends: 8745 [2022-02-10 22:22:13,699 INFO L226 Difference]: Without dead ends: 8398 [2022-02-10 22:22:13,700 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2022-02-10 22:22:13,701 INFO L934 BasicCegarLoop]: 324 mSDtfsCounter, 413 mSDsluCounter, 1350 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:13,702 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 1617 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:13,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8398 states. [2022-02-10 22:22:13,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8398 to 6955. [2022-02-10 22:22:13,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6955 states, 6954 states have (on average 2.7018981880931836) internal successors, (18789), 6954 states have internal predecessors, (18789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:13,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 18789 transitions. [2022-02-10 22:22:13,901 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 18789 transitions. Word has length 91 [2022-02-10 22:22:13,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:13,902 INFO L470 AbstractCegarLoop]: Abstraction has 6955 states and 18789 transitions. [2022-02-10 22:22:13,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:13,902 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 18789 transitions. [2022-02-10 22:22:13,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:13,912 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:13,912 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] [2022-02-10 22:22:13,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 22:22:13,912 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:13,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:13,913 INFO L85 PathProgramCache]: Analyzing trace with hash -57199682, now seen corresponding path program 2 times [2022-02-10 22:22:13,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:13,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845658408] [2022-02-10 22:22:13,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:13,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:14,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:14,008 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:14,008 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845658408] [2022-02-10 22:22:14,008 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845658408] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:14,008 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:14,008 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:14,008 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634367476] [2022-02-10 22:22:14,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:14,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:14,009 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:14,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:14,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:14,009 INFO L87 Difference]: Start difference. First operand 6955 states and 18789 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:14,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:14,385 INFO L93 Difference]: Finished difference Result 8014 states and 21541 transitions. [2022-02-10 22:22:14,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:22:14,385 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:14,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:14,401 INFO L225 Difference]: With dead ends: 8014 [2022-02-10 22:22:14,401 INFO L226 Difference]: Without dead ends: 7698 [2022-02-10 22:22:14,402 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=247, Invalid=875, Unknown=0, NotChecked=0, Total=1122 [2022-02-10 22:22:14,402 INFO L934 BasicCegarLoop]: 286 mSDtfsCounter, 230 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2521 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 22:22:14,403 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2521 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:14,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7698 states. [2022-02-10 22:22:14,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7698 to 6959. [2022-02-10 22:22:14,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6959 states, 6958 states have (on average 2.7013509629203796) internal successors, (18796), 6958 states have internal predecessors, (18796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:14,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6959 states to 6959 states and 18796 transitions. [2022-02-10 22:22:14,532 INFO L78 Accepts]: Start accepts. Automaton has 6959 states and 18796 transitions. Word has length 91 [2022-02-10 22:22:14,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:14,533 INFO L470 AbstractCegarLoop]: Abstraction has 6959 states and 18796 transitions. [2022-02-10 22:22:14,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:14,533 INFO L276 IsEmpty]: Start isEmpty. Operand 6959 states and 18796 transitions. [2022-02-10 22:22:14,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:14,547 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:14,547 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:14,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 22:22:14,547 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:14,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:14,548 INFO L85 PathProgramCache]: Analyzing trace with hash 238403154, now seen corresponding path program 3 times [2022-02-10 22:22:14,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:14,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288894579] [2022-02-10 22:22:14,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:14,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:14,656 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 22:22:14,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:14,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288894579] [2022-02-10 22:22:14,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288894579] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:14,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:14,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:14,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115802427] [2022-02-10 22:22:14,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:14,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:14,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:14,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:14,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:14,657 INFO L87 Difference]: Start difference. First operand 6959 states and 18796 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:14,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:14,991 INFO L93 Difference]: Finished difference Result 7925 states and 21311 transitions. [2022-02-10 22:22:14,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-10 22:22:14,992 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:14,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:15,006 INFO L225 Difference]: With dead ends: 7925 [2022-02-10 22:22:15,006 INFO L226 Difference]: Without dead ends: 7640 [2022-02-10 22:22:15,006 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=629, Unknown=0, NotChecked=0, Total=812 [2022-02-10 22:22:15,007 INFO L934 BasicCegarLoop]: 277 mSDtfsCounter, 186 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:15,007 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 2012 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:15,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7640 states. [2022-02-10 22:22:15,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7640 to 6963. [2022-02-10 22:22:15,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6963 states, 6962 states have (on average 2.700804366561333) internal successors, (18803), 6962 states have internal predecessors, (18803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:15,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6963 states to 6963 states and 18803 transitions. [2022-02-10 22:22:15,130 INFO L78 Accepts]: Start accepts. Automaton has 6963 states and 18803 transitions. Word has length 91 [2022-02-10 22:22:15,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:15,130 INFO L470 AbstractCegarLoop]: Abstraction has 6963 states and 18803 transitions. [2022-02-10 22:22:15,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:15,130 INFO L276 IsEmpty]: Start isEmpty. Operand 6963 states and 18803 transitions. [2022-02-10 22:22:15,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:15,139 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:15,139 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:15,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 22:22:15,139 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:15,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:15,139 INFO L85 PathProgramCache]: Analyzing trace with hash -179778500, now seen corresponding path program 4 times [2022-02-10 22:22:15,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:15,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017590848] [2022-02-10 22:22:15,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:15,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:15,233 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 22:22:15,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:15,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017590848] [2022-02-10 22:22:15,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017590848] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:15,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:15,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:15,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412530711] [2022-02-10 22:22:15,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:15,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:15,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:15,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:15,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:15,234 INFO L87 Difference]: Start difference. First operand 6963 states and 18803 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:15,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:15,454 INFO L93 Difference]: Finished difference Result 7814 states and 21025 transitions. [2022-02-10 22:22:15,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:22:15,454 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:15,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:15,466 INFO L225 Difference]: With dead ends: 7814 [2022-02-10 22:22:15,467 INFO L226 Difference]: Without dead ends: 7563 [2022-02-10 22:22:15,467 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2022-02-10 22:22:15,468 INFO L934 BasicCegarLoop]: 261 mSDtfsCounter, 146 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1952 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 22:22:15,468 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 1952 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:15,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7563 states. [2022-02-10 22:22:15,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7563 to 6967. [2022-02-10 22:22:15,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6967 states, 6966 states have (on average 2.7002583979328167) internal successors, (18810), 6966 states have internal predecessors, (18810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:15,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6967 states to 6967 states and 18810 transitions. [2022-02-10 22:22:15,632 INFO L78 Accepts]: Start accepts. Automaton has 6967 states and 18810 transitions. Word has length 91 [2022-02-10 22:22:15,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:15,632 INFO L470 AbstractCegarLoop]: Abstraction has 6967 states and 18810 transitions. [2022-02-10 22:22:15,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:15,632 INFO L276 IsEmpty]: Start isEmpty. Operand 6967 states and 18810 transitions. [2022-02-10 22:22:15,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:15,641 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:15,641 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] [2022-02-10 22:22:15,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-10 22:22:15,641 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:15,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:15,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1313042934, now seen corresponding path program 5 times [2022-02-10 22:22:15,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:15,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935687909] [2022-02-10 22:22:15,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:15,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:15,740 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 22:22:15,741 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:15,741 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935687909] [2022-02-10 22:22:15,741 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935687909] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:15,741 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:15,741 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:15,741 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335428702] [2022-02-10 22:22:15,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:15,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:15,741 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:15,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:15,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:15,742 INFO L87 Difference]: Start difference. First operand 6967 states and 18810 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:15,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:15,955 INFO L93 Difference]: Finished difference Result 7785 states and 20943 transitions. [2022-02-10 22:22:15,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:15,956 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:15,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:15,968 INFO L225 Difference]: With dead ends: 7785 [2022-02-10 22:22:15,968 INFO L226 Difference]: Without dead ends: 7515 [2022-02-10 22:22:15,969 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:22:15,969 INFO L934 BasicCegarLoop]: 269 mSDtfsCounter, 148 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:15,969 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 1523 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:15,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7515 states. [2022-02-10 22:22:16,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7515 to 6933. [2022-02-10 22:22:16,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.701817657241777) internal successors, (18729), 6932 states have internal predecessors, (18729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:16,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18729 transitions. [2022-02-10 22:22:16,085 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18729 transitions. Word has length 91 [2022-02-10 22:22:16,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:16,085 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18729 transitions. [2022-02-10 22:22:16,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:16,085 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18729 transitions. [2022-02-10 22:22:16,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:16,095 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:16,095 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:16,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-10 22:22:16,095 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:16,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:16,096 INFO L85 PathProgramCache]: Analyzing trace with hash -928662206, now seen corresponding path program 6 times [2022-02-10 22:22:16,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:16,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699542] [2022-02-10 22:22:16,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:16,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:16,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:16,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:16,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699542] [2022-02-10 22:22:16,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699542] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:16,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:16,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:16,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577142916] [2022-02-10 22:22:16,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:16,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:16,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:16,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:16,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:16,187 INFO L87 Difference]: Start difference. First operand 6933 states and 18729 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:16,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:16,494 INFO L93 Difference]: Finished difference Result 8034 states and 21592 transitions. [2022-02-10 22:22:16,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:22:16,494 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:16,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:16,506 INFO L225 Difference]: With dead ends: 8034 [2022-02-10 22:22:16,506 INFO L226 Difference]: Without dead ends: 7718 [2022-02-10 22:22:16,506 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=232, Invalid=760, Unknown=0, NotChecked=0, Total=992 [2022-02-10 22:22:16,507 INFO L934 BasicCegarLoop]: 250 mSDtfsCounter, 196 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2045 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 22:22:16,507 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 2045 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:16,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7718 states. [2022-02-10 22:22:16,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7718 to 6941. [2022-02-10 22:22:16,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.7012968299711817) internal successors, (18747), 6940 states have internal predecessors, (18747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:16,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18747 transitions. [2022-02-10 22:22:16,630 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18747 transitions. Word has length 91 [2022-02-10 22:22:16,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:16,630 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18747 transitions. [2022-02-10 22:22:16,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:16,631 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18747 transitions. [2022-02-10 22:22:16,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:16,640 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:16,640 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:16,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-10 22:22:16,641 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:16,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:16,641 INFO L85 PathProgramCache]: Analyzing trace with hash -633059370, now seen corresponding path program 7 times [2022-02-10 22:22:16,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:16,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736733760] [2022-02-10 22:22:16,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:16,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:16,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:16,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:16,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736733760] [2022-02-10 22:22:16,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736733760] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:16,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:16,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:16,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276500457] [2022-02-10 22:22:16,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:16,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:16,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:16,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:16,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:16,760 INFO L87 Difference]: Start difference. First operand 6941 states and 18747 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:17,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:17,095 INFO L93 Difference]: Finished difference Result 7997 states and 21505 transitions. [2022-02-10 22:22:17,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-10 22:22:17,096 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:17,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:17,112 INFO L225 Difference]: With dead ends: 7997 [2022-02-10 22:22:17,112 INFO L226 Difference]: Without dead ends: 7712 [2022-02-10 22:22:17,112 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:22:17,113 INFO L934 BasicCegarLoop]: 241 mSDtfsCounter, 165 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1786 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 22:22:17,113 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 1786 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:17,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7712 states. [2022-02-10 22:22:17,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7712 to 6945. [2022-02-10 22:22:17,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 2.7007488479262673) internal successors, (18754), 6944 states have internal predecessors, (18754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:17,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 18754 transitions. [2022-02-10 22:22:17,348 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 18754 transitions. Word has length 91 [2022-02-10 22:22:17,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:17,349 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 18754 transitions. [2022-02-10 22:22:17,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:17,349 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 18754 transitions. [2022-02-10 22:22:17,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:17,357 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:17,357 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] [2022-02-10 22:22:17,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-10 22:22:17,358 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:17,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:17,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1051241024, now seen corresponding path program 8 times [2022-02-10 22:22:17,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:17,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837326858] [2022-02-10 22:22:17,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:17,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:17,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:17,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:17,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837326858] [2022-02-10 22:22:17,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837326858] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:17,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:17,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:17,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510800785] [2022-02-10 22:22:17,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:17,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:17,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:17,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:17,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:17,474 INFO L87 Difference]: Start difference. First operand 6945 states and 18754 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:17,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:17,761 INFO L93 Difference]: Finished difference Result 7894 states and 21241 transitions. [2022-02-10 22:22:17,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:17,761 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:17,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:17,773 INFO L225 Difference]: With dead ends: 7894 [2022-02-10 22:22:17,773 INFO L226 Difference]: Without dead ends: 7643 [2022-02-10 22:22:17,773 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2022-02-10 22:22:17,774 INFO L934 BasicCegarLoop]: 230 mSDtfsCounter, 113 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 2065 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 22:22:17,774 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 2065 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:17,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7643 states. [2022-02-10 22:22:17,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7643 to 6949. [2022-02-10 22:22:17,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 2.700201496833621) internal successors, (18761), 6948 states have internal predecessors, (18761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:17,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 18761 transitions. [2022-02-10 22:22:17,907 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 18761 transitions. Word has length 91 [2022-02-10 22:22:17,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:17,907 INFO L470 AbstractCegarLoop]: Abstraction has 6949 states and 18761 transitions. [2022-02-10 22:22:17,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:17,907 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 18761 transitions. [2022-02-10 22:22:17,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:17,917 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:17,917 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:17,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-10 22:22:17,917 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:17,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:17,918 INFO L85 PathProgramCache]: Analyzing trace with hash 441580410, now seen corresponding path program 9 times [2022-02-10 22:22:17,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:17,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954740623] [2022-02-10 22:22:17,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:17,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:18,019 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 22:22:18,020 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:18,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954740623] [2022-02-10 22:22:18,020 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954740623] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:18,020 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:18,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:18,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631997691] [2022-02-10 22:22:18,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:18,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:18,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:18,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:18,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:18,021 INFO L87 Difference]: Start difference. First operand 6949 states and 18761 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:18,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:18,304 INFO L93 Difference]: Finished difference Result 7865 states and 21159 transitions. [2022-02-10 22:22:18,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:18,304 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:18,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:18,317 INFO L225 Difference]: With dead ends: 7865 [2022-02-10 22:22:18,317 INFO L226 Difference]: Without dead ends: 7599 [2022-02-10 22:22:18,318 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:22:18,318 INFO L934 BasicCegarLoop]: 235 mSDtfsCounter, 114 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 2103 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 22:22:18,318 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 2103 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:18,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7599 states. [2022-02-10 22:22:18,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7599 to 6937. [2022-02-10 22:22:18,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.701268742791234) internal successors, (18736), 6936 states have internal predecessors, (18736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:18,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18736 transitions. [2022-02-10 22:22:18,450 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18736 transitions. Word has length 91 [2022-02-10 22:22:18,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:18,450 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18736 transitions. [2022-02-10 22:22:18,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:18,451 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18736 transitions. [2022-02-10 22:22:18,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:18,461 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:18,461 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] [2022-02-10 22:22:18,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-10 22:22:18,461 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:18,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:18,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1338573798, now seen corresponding path program 10 times [2022-02-10 22:22:18,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:18,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373102433] [2022-02-10 22:22:18,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:18,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:18,560 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 22:22:18,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:18,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373102433] [2022-02-10 22:22:18,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373102433] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:18,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:18,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:18,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265252615] [2022-02-10 22:22:18,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:18,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:18,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:18,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:18,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:18,562 INFO L87 Difference]: Start difference. First operand 6937 states and 18736 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:18,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:18,867 INFO L93 Difference]: Finished difference Result 7914 states and 21288 transitions. [2022-02-10 22:22:18,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-10 22:22:18,868 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:18,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:18,880 INFO L225 Difference]: With dead ends: 7914 [2022-02-10 22:22:18,880 INFO L226 Difference]: Without dead ends: 7635 [2022-02-10 22:22:18,881 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=599, Unknown=0, NotChecked=0, Total=812 [2022-02-10 22:22:18,881 INFO L934 BasicCegarLoop]: 231 mSDtfsCounter, 164 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1286 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 22:22:18,881 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 1286 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:18,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7635 states. [2022-02-10 22:22:18,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7635 to 6945. [2022-02-10 22:22:18,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 2.7007488479262673) internal successors, (18754), 6944 states have internal predecessors, (18754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:18,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 18754 transitions. [2022-02-10 22:22:18,997 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 18754 transitions. Word has length 91 [2022-02-10 22:22:18,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:18,997 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 18754 transitions. [2022-02-10 22:22:18,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:18,997 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 18754 transitions. [2022-02-10 22:22:19,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:19,006 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:19,006 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] [2022-02-10 22:22:19,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-10 22:22:19,006 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:19,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:19,006 INFO L85 PathProgramCache]: Analyzing trace with hash -94611704, now seen corresponding path program 11 times [2022-02-10 22:22:19,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:19,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761954311] [2022-02-10 22:22:19,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:19,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:19,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:19,083 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 22:22:19,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:19,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761954311] [2022-02-10 22:22:19,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761954311] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:19,084 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:19,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:19,084 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919444698] [2022-02-10 22:22:19,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:19,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:19,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:19,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:19,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:19,085 INFO L87 Difference]: Start difference. First operand 6945 states and 18754 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:19,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:19,368 INFO L93 Difference]: Finished difference Result 7874 states and 21186 transitions. [2022-02-10 22:22:19,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:22:19,368 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:19,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:19,380 INFO L225 Difference]: With dead ends: 7874 [2022-02-10 22:22:19,380 INFO L226 Difference]: Without dead ends: 7623 [2022-02-10 22:22:19,380 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=582, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:22:19,381 INFO L934 BasicCegarLoop]: 231 mSDtfsCounter, 128 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:19,381 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1637 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:19,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7623 states. [2022-02-10 22:22:19,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7623 to 6949. [2022-02-10 22:22:19,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 2.700201496833621) internal successors, (18761), 6948 states have internal predecessors, (18761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:19,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 18761 transitions. [2022-02-10 22:22:19,481 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 18761 transitions. Word has length 91 [2022-02-10 22:22:19,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:19,481 INFO L470 AbstractCegarLoop]: Abstraction has 6949 states and 18761 transitions. [2022-02-10 22:22:19,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:19,481 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 18761 transitions. [2022-02-10 22:22:19,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:19,490 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:19,490 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] [2022-02-10 22:22:19,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-10 22:22:19,490 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:19,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:19,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1398209730, now seen corresponding path program 12 times [2022-02-10 22:22:19,491 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:19,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458370441] [2022-02-10 22:22:19,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:19,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:19,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:19,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:19,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458370441] [2022-02-10 22:22:19,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458370441] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:19,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:19,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:19,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091366175] [2022-02-10 22:22:19,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:19,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:19,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:19,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:19,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:19,576 INFO L87 Difference]: Start difference. First operand 6949 states and 18761 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:19,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:19,798 INFO L93 Difference]: Finished difference Result 7845 states and 21104 transitions. [2022-02-10 22:22:19,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:22:19,799 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:19,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:19,809 INFO L225 Difference]: With dead ends: 7845 [2022-02-10 22:22:19,809 INFO L226 Difference]: Without dead ends: 7583 [2022-02-10 22:22:19,810 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:19,810 INFO L934 BasicCegarLoop]: 234 mSDtfsCounter, 116 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:19,810 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 1796 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:19,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7583 states. [2022-02-10 22:22:19,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7583 to 6941. [2022-02-10 22:22:19,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.7007204610951008) internal successors, (18743), 6940 states have internal predecessors, (18743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:19,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18743 transitions. [2022-02-10 22:22:19,897 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18743 transitions. Word has length 91 [2022-02-10 22:22:19,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:19,897 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18743 transitions. [2022-02-10 22:22:19,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:19,897 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18743 transitions. [2022-02-10 22:22:19,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:19,905 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:19,905 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:19,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-10 22:22:19,906 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:19,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:19,906 INFO L85 PathProgramCache]: Analyzing trace with hash 405891160, now seen corresponding path program 13 times [2022-02-10 22:22:19,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:19,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664308357] [2022-02-10 22:22:19,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:19,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:19,990 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 22:22:19,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:19,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664308357] [2022-02-10 22:22:19,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664308357] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:19,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:19,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:19,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615270452] [2022-02-10 22:22:19,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:19,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:19,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:19,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:19,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:19,991 INFO L87 Difference]: Start difference. First operand 6941 states and 18743 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:20,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:20,248 INFO L93 Difference]: Finished difference Result 7929 states and 21314 transitions. [2022-02-10 22:22:20,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-10 22:22:20,248 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:20,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:20,260 INFO L225 Difference]: With dead ends: 7929 [2022-02-10 22:22:20,260 INFO L226 Difference]: Without dead ends: 7644 [2022-02-10 22:22:20,260 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2022-02-10 22:22:20,260 INFO L934 BasicCegarLoop]: 241 mSDtfsCounter, 164 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:20,261 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 1948 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:20,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7644 states. [2022-02-10 22:22:20,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7644 to 6945. [2022-02-10 22:22:20,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 2.700172811059908) internal successors, (18750), 6944 states have internal predecessors, (18750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:20,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 18750 transitions. [2022-02-10 22:22:20,359 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 18750 transitions. Word has length 91 [2022-02-10 22:22:20,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:20,359 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 18750 transitions. [2022-02-10 22:22:20,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:20,360 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 18750 transitions. [2022-02-10 22:22:20,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:20,368 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:20,368 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:20,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-10 22:22:20,369 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:20,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:20,369 INFO L85 PathProgramCache]: Analyzing trace with hash -12290494, now seen corresponding path program 14 times [2022-02-10 22:22:20,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:20,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014948266] [2022-02-10 22:22:20,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:20,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:20,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:20,450 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:20,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014948266] [2022-02-10 22:22:20,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014948266] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:20,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:20,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:20,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162794919] [2022-02-10 22:22:20,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:20,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:20,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:20,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:20,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:20,452 INFO L87 Difference]: Start difference. First operand 6945 states and 18750 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:20,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:20,702 INFO L93 Difference]: Finished difference Result 7830 states and 21061 transitions. [2022-02-10 22:22:20,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 22:22:20,702 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:20,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:20,715 INFO L225 Difference]: With dead ends: 7830 [2022-02-10 22:22:20,715 INFO L226 Difference]: Without dead ends: 7579 [2022-02-10 22:22:20,715 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2022-02-10 22:22:20,716 INFO L934 BasicCegarLoop]: 229 mSDtfsCounter, 128 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:20,716 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1914 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:20,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7579 states. [2022-02-10 22:22:20,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7579 to 6949. [2022-02-10 22:22:20,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 2.6996257915947037) internal successors, (18757), 6948 states have internal predecessors, (18757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:20,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 18757 transitions. [2022-02-10 22:22:20,836 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 18757 transitions. Word has length 91 [2022-02-10 22:22:20,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:20,836 INFO L470 AbstractCegarLoop]: Abstraction has 6949 states and 18757 transitions. [2022-02-10 22:22:20,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:20,836 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 18757 transitions. [2022-02-10 22:22:20,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:20,845 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:20,845 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:20,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-10 22:22:20,845 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:20,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:20,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1480530940, now seen corresponding path program 15 times [2022-02-10 22:22:20,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:20,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707885455] [2022-02-10 22:22:20,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:20,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:20,937 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 22:22:20,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:20,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707885455] [2022-02-10 22:22:20,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707885455] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:20,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:20,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:20,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922511861] [2022-02-10 22:22:20,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:20,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:20,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:20,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:20,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:20,939 INFO L87 Difference]: Start difference. First operand 6949 states and 18757 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:21,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:21,201 INFO L93 Difference]: Finished difference Result 7785 states and 20935 transitions. [2022-02-10 22:22:21,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:21,201 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:21,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:21,215 INFO L225 Difference]: With dead ends: 7785 [2022-02-10 22:22:21,215 INFO L226 Difference]: Without dead ends: 7511 [2022-02-10 22:22:21,216 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:22:21,216 INFO L934 BasicCegarLoop]: 229 mSDtfsCounter, 123 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1917 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:21,216 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1917 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:21,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7511 states. [2022-02-10 22:22:21,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7511 to 6921. [2022-02-10 22:22:21,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6921 states, 6920 states have (on average 2.7011560693641616) internal successors, (18692), 6920 states have internal predecessors, (18692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:21,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6921 states to 6921 states and 18692 transitions. [2022-02-10 22:22:21,327 INFO L78 Accepts]: Start accepts. Automaton has 6921 states and 18692 transitions. Word has length 91 [2022-02-10 22:22:21,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:21,327 INFO L470 AbstractCegarLoop]: Abstraction has 6921 states and 18692 transitions. [2022-02-10 22:22:21,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:21,328 INFO L276 IsEmpty]: Start isEmpty. Operand 6921 states and 18692 transitions. [2022-02-10 22:22:21,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:21,337 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:21,337 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:21,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-10 22:22:21,338 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:21,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:21,338 INFO L85 PathProgramCache]: Analyzing trace with hash 899547442, now seen corresponding path program 16 times [2022-02-10 22:22:21,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:21,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793354745] [2022-02-10 22:22:21,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:21,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:21,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:21,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:21,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793354745] [2022-02-10 22:22:21,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793354745] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:21,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:21,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:21,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228994544] [2022-02-10 22:22:21,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:21,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:21,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:21,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:21,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:21,426 INFO L87 Difference]: Start difference. First operand 6921 states and 18692 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:21,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:21,751 INFO L93 Difference]: Finished difference Result 8298 states and 22306 transitions. [2022-02-10 22:22:21,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:22:21,752 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:21,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:21,763 INFO L225 Difference]: With dead ends: 8298 [2022-02-10 22:22:21,763 INFO L226 Difference]: Without dead ends: 7982 [2022-02-10 22:22:21,764 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2022-02-10 22:22:21,765 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 195 mSDsluCounter, 1962 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 2152 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:21,765 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 2152 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:21,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7982 states. [2022-02-10 22:22:21,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7982 to 6933. [2022-02-10 22:22:21,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.70066358915176) internal successors, (18721), 6932 states have internal predecessors, (18721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:21,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18721 transitions. [2022-02-10 22:22:21,874 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18721 transitions. Word has length 91 [2022-02-10 22:22:21,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:21,874 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18721 transitions. [2022-02-10 22:22:21,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:21,874 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18721 transitions. [2022-02-10 22:22:21,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:21,882 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:21,882 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:21,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-10 22:22:21,883 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:21,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:21,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1195150278, now seen corresponding path program 17 times [2022-02-10 22:22:21,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:21,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037376353] [2022-02-10 22:22:21,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:21,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:21,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:21,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:21,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037376353] [2022-02-10 22:22:21,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037376353] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:21,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:21,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:21,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369168978] [2022-02-10 22:22:21,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:21,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:21,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:21,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:21,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:21,981 INFO L87 Difference]: Start difference. First operand 6933 states and 18721 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:22,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:22,295 INFO L93 Difference]: Finished difference Result 8261 states and 22219 transitions. [2022-02-10 22:22:22,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-10 22:22:22,295 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:22,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:22,307 INFO L225 Difference]: With dead ends: 8261 [2022-02-10 22:22:22,307 INFO L226 Difference]: Without dead ends: 7976 [2022-02-10 22:22:22,307 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=197, Invalid=615, Unknown=0, NotChecked=0, Total=812 [2022-02-10 22:22:22,308 INFO L934 BasicCegarLoop]: 236 mSDtfsCounter, 176 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1755 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 22:22:22,308 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 1755 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:22,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7976 states. [2022-02-10 22:22:22,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7976 to 6937. [2022-02-10 22:22:22,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.7001153402537486) internal successors, (18728), 6936 states have internal predecessors, (18728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:22,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18728 transitions. [2022-02-10 22:22:22,397 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18728 transitions. Word has length 91 [2022-02-10 22:22:22,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:22,398 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18728 transitions. [2022-02-10 22:22:22,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:22,398 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18728 transitions. [2022-02-10 22:22:22,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:22,405 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:22,405 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] [2022-02-10 22:22:22,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-10 22:22:22,406 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:22,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:22,406 INFO L85 PathProgramCache]: Analyzing trace with hash 776968624, now seen corresponding path program 18 times [2022-02-10 22:22:22,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:22,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072723574] [2022-02-10 22:22:22,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:22,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:22,492 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 22:22:22,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:22,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072723574] [2022-02-10 22:22:22,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072723574] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:22,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:22,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:22,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358053948] [2022-02-10 22:22:22,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:22,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:22,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:22,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:22,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:22,493 INFO L87 Difference]: Start difference. First operand 6937 states and 18728 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:22,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:22,714 INFO L93 Difference]: Finished difference Result 8158 states and 21955 transitions. [2022-02-10 22:22:22,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:22,714 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:22,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:22,724 INFO L225 Difference]: With dead ends: 8158 [2022-02-10 22:22:22,724 INFO L226 Difference]: Without dead ends: 7907 [2022-02-10 22:22:22,725 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:22,725 INFO L934 BasicCegarLoop]: 231 mSDtfsCounter, 132 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:22,725 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1532 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:22,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7907 states. [2022-02-10 22:22:22,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7907 to 6941. [2022-02-10 22:22:22,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.6995677233429394) internal successors, (18735), 6940 states have internal predecessors, (18735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:22,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18735 transitions. [2022-02-10 22:22:22,832 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18735 transitions. Word has length 91 [2022-02-10 22:22:22,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:22,832 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18735 transitions. [2022-02-10 22:22:22,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:22,832 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18735 transitions. [2022-02-10 22:22:22,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:22,840 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:22,840 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:22,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-10 22:22:22,840 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:22,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:22,840 INFO L85 PathProgramCache]: Analyzing trace with hash -2025177238, now seen corresponding path program 19 times [2022-02-10 22:22:22,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:22,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494555975] [2022-02-10 22:22:22,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:22,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:22,928 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 22:22:22,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:22,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494555975] [2022-02-10 22:22:22,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494555975] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:22,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:22,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:22,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874075348] [2022-02-10 22:22:22,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:22,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:22,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:22,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:22,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:22,930 INFO L87 Difference]: Start difference. First operand 6941 states and 18735 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:23,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:23,178 INFO L93 Difference]: Finished difference Result 8129 states and 21873 transitions. [2022-02-10 22:22:23,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:23,178 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:23,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:23,191 INFO L225 Difference]: With dead ends: 8129 [2022-02-10 22:22:23,191 INFO L226 Difference]: Without dead ends: 7863 [2022-02-10 22:22:23,192 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:22:23,192 INFO L934 BasicCegarLoop]: 236 mSDtfsCounter, 128 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1690 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 22:22:23,192 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1690 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:23,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7863 states. [2022-02-10 22:22:23,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7863 to 6929. [2022-02-10 22:22:23,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 2.700635103926097) internal successors, (18710), 6928 states have internal predecessors, (18710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:23,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 18710 transitions. [2022-02-10 22:22:23,282 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 18710 transitions. Word has length 91 [2022-02-10 22:22:23,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:23,282 INFO L470 AbstractCegarLoop]: Abstraction has 6929 states and 18710 transitions. [2022-02-10 22:22:23,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:23,282 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 18710 transitions. [2022-02-10 22:22:23,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:23,290 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:23,290 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] [2022-02-10 22:22:23,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-10 22:22:23,290 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:23,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:23,290 INFO L85 PathProgramCache]: Analyzing trace with hash 489635850, now seen corresponding path program 20 times [2022-02-10 22:22:23,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:23,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56339896] [2022-02-10 22:22:23,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:23,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:23,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:23,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:23,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56339896] [2022-02-10 22:22:23,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56339896] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:23,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:23,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:23,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450667216] [2022-02-10 22:22:23,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:23,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:23,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:23,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:23,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:23,382 INFO L87 Difference]: Start difference. First operand 6929 states and 18710 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:23,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:23,651 INFO L93 Difference]: Finished difference Result 8258 states and 22222 transitions. [2022-02-10 22:22:23,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:22:23,652 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:23,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:23,662 INFO L225 Difference]: With dead ends: 8258 [2022-02-10 22:22:23,662 INFO L226 Difference]: Without dead ends: 7979 [2022-02-10 22:22:23,662 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=217, Invalid=653, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:22:23,663 INFO L934 BasicCegarLoop]: 235 mSDtfsCounter, 185 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1541 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 22:22:23,663 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 1541 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:23,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7979 states. [2022-02-10 22:22:23,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7979 to 6937. [2022-02-10 22:22:23,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.7001153402537486) internal successors, (18728), 6936 states have internal predecessors, (18728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:23,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18728 transitions. [2022-02-10 22:22:23,746 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18728 transitions. Word has length 91 [2022-02-10 22:22:23,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:23,746 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18728 transitions. [2022-02-10 22:22:23,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:23,746 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18728 transitions. [2022-02-10 22:22:23,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:23,753 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:23,753 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:23,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-10 22:22:23,754 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:23,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:23,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1733597944, now seen corresponding path program 21 times [2022-02-10 22:22:23,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:23,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326497975] [2022-02-10 22:22:23,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:23,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:23,844 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 22:22:23,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:23,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326497975] [2022-02-10 22:22:23,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326497975] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:23,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:23,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:23,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583205934] [2022-02-10 22:22:23,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:23,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:23,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:23,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:23,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:23,845 INFO L87 Difference]: Start difference. First operand 6937 states and 18728 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:24,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:24,146 INFO L93 Difference]: Finished difference Result 8206 states and 22087 transitions. [2022-02-10 22:22:24,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:22:24,147 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:24,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:24,161 INFO L225 Difference]: With dead ends: 8206 [2022-02-10 22:22:24,161 INFO L226 Difference]: Without dead ends: 7955 [2022-02-10 22:22:24,162 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2022-02-10 22:22:24,162 INFO L934 BasicCegarLoop]: 232 mSDtfsCounter, 141 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1867 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 22:22:24,162 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 1867 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:24,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7955 states. [2022-02-10 22:22:24,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7955 to 6941. [2022-02-10 22:22:24,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.6995677233429394) internal successors, (18735), 6940 states have internal predecessors, (18735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:24,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18735 transitions. [2022-02-10 22:22:24,261 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18735 transitions. Word has length 91 [2022-02-10 22:22:24,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:24,261 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18735 transitions. [2022-02-10 22:22:24,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:24,261 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18735 transitions. [2022-02-10 22:22:24,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:24,268 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:24,268 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:24,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-10 22:22:24,269 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:24,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:24,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1068547918, now seen corresponding path program 22 times [2022-02-10 22:22:24,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:24,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276868603] [2022-02-10 22:22:24,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:24,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:24,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:24,363 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 22:22:24,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:24,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276868603] [2022-02-10 22:22:24,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276868603] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:24,364 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:24,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:24,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393321768] [2022-02-10 22:22:24,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:24,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:24,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:24,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:24,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:24,365 INFO L87 Difference]: Start difference. First operand 6941 states and 18735 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:24,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:24,592 INFO L93 Difference]: Finished difference Result 8177 states and 22005 transitions. [2022-02-10 22:22:24,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:22:24,592 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:24,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:24,604 INFO L225 Difference]: With dead ends: 8177 [2022-02-10 22:22:24,604 INFO L226 Difference]: Without dead ends: 7915 [2022-02-10 22:22:24,605 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:24,605 INFO L934 BasicCegarLoop]: 234 mSDtfsCounter, 131 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:24,605 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 1678 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:24,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7915 states. [2022-02-10 22:22:24,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7915 to 6933. [2022-02-10 22:22:24,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.7000865551067514) internal successors, (18717), 6932 states have internal predecessors, (18717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:24,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18717 transitions. [2022-02-10 22:22:24,691 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18717 transitions. Word has length 91 [2022-02-10 22:22:24,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:24,691 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18717 transitions. [2022-02-10 22:22:24,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:24,691 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18717 transitions. [2022-02-10 22:22:24,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:24,699 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:24,699 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:24,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-10 22:22:24,699 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:24,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:24,699 INFO L85 PathProgramCache]: Analyzing trace with hash -2060866488, now seen corresponding path program 23 times [2022-02-10 22:22:24,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:24,699 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747050853] [2022-02-10 22:22:24,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:24,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:24,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:24,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:24,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747050853] [2022-02-10 22:22:24,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747050853] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:24,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:24,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:24,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811345971] [2022-02-10 22:22:24,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:24,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:24,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:24,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:24,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:24,796 INFO L87 Difference]: Start difference. First operand 6933 states and 18717 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:25,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:25,079 INFO L93 Difference]: Finished difference Result 8261 states and 22215 transitions. [2022-02-10 22:22:25,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-10 22:22:25,079 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:25,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:25,092 INFO L225 Difference]: With dead ends: 8261 [2022-02-10 22:22:25,093 INFO L226 Difference]: Without dead ends: 7976 [2022-02-10 22:22:25,093 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=563, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:22:25,097 INFO L934 BasicCegarLoop]: 235 mSDtfsCounter, 179 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1748 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 22:22:25,097 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 1748 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:25,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7976 states. [2022-02-10 22:22:25,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7976 to 6937. [2022-02-10 22:22:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.699538638985006) internal successors, (18724), 6936 states have internal predecessors, (18724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:25,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18724 transitions. [2022-02-10 22:22:25,201 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18724 transitions. Word has length 91 [2022-02-10 22:22:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:25,201 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18724 transitions. [2022-02-10 22:22:25,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:25,201 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18724 transitions. [2022-02-10 22:22:25,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:25,210 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:25,210 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] [2022-02-10 22:22:25,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-10 22:22:25,211 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:25,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:25,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1815919154, now seen corresponding path program 24 times [2022-02-10 22:22:25,211 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:25,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702043243] [2022-02-10 22:22:25,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:25,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:25,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:25,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:25,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702043243] [2022-02-10 22:22:25,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702043243] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:25,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:25,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:25,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383185364] [2022-02-10 22:22:25,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:25,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:25,314 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:25,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:25,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:25,314 INFO L87 Difference]: Start difference. First operand 6937 states and 18724 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:25,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:25,564 INFO L93 Difference]: Finished difference Result 8170 states and 21984 transitions. [2022-02-10 22:22:25,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 22:22:25,564 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:25,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:25,576 INFO L225 Difference]: With dead ends: 8170 [2022-02-10 22:22:25,576 INFO L226 Difference]: Without dead ends: 7919 [2022-02-10 22:22:25,577 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:22:25,577 INFO L934 BasicCegarLoop]: 233 mSDtfsCounter, 136 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1874 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:25,577 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 1874 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:25,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7919 states. [2022-02-10 22:22:25,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7919 to 6941. [2022-02-10 22:22:25,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.698991354466859) internal successors, (18731), 6940 states have internal predecessors, (18731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:25,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18731 transitions. [2022-02-10 22:22:25,661 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18731 transitions. Word has length 91 [2022-02-10 22:22:25,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:25,662 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18731 transitions. [2022-02-10 22:22:25,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:25,662 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18731 transitions. [2022-02-10 22:22:25,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:25,669 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:25,669 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] [2022-02-10 22:22:25,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-10 22:22:25,670 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:25,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:25,670 INFO L85 PathProgramCache]: Analyzing trace with hash -986226708, now seen corresponding path program 25 times [2022-02-10 22:22:25,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:25,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98372033] [2022-02-10 22:22:25,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:25,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:25,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:25,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:25,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98372033] [2022-02-10 22:22:25,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98372033] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:25,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:25,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:25,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67142421] [2022-02-10 22:22:25,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:25,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:25,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:25,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:25,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:25,776 INFO L87 Difference]: Start difference. First operand 6941 states and 18731 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:26,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:26,018 INFO L93 Difference]: Finished difference Result 8129 states and 21869 transitions. [2022-02-10 22:22:26,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:26,018 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:26,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:26,029 INFO L225 Difference]: With dead ends: 8129 [2022-02-10 22:22:26,029 INFO L226 Difference]: Without dead ends: 7859 [2022-02-10 22:22:26,029 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2022-02-10 22:22:26,030 INFO L934 BasicCegarLoop]: 233 mSDtfsCounter, 134 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:26,030 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 2073 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:26,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7859 states. [2022-02-10 22:22:26,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7859 to 6925. [2022-02-10 22:22:26,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6925 states, 6924 states have (on average 2.7006065857885617) internal successors, (18699), 6924 states have internal predecessors, (18699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:26,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6925 states to 6925 states and 18699 transitions. [2022-02-10 22:22:26,148 INFO L78 Accepts]: Start accepts. Automaton has 6925 states and 18699 transitions. Word has length 91 [2022-02-10 22:22:26,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:26,148 INFO L470 AbstractCegarLoop]: Abstraction has 6925 states and 18699 transitions. [2022-02-10 22:22:26,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:26,148 INFO L276 IsEmpty]: Start isEmpty. Operand 6925 states and 18699 transitions. [2022-02-10 22:22:26,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:26,155 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:26,155 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] [2022-02-10 22:22:26,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-10 22:22:26,155 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:26,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:26,156 INFO L85 PathProgramCache]: Analyzing trace with hash -2013636544, now seen corresponding path program 26 times [2022-02-10 22:22:26,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:26,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309635055] [2022-02-10 22:22:26,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:26,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:26,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:26,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:26,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309635055] [2022-02-10 22:22:26,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309635055] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:26,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:26,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:26,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463170807] [2022-02-10 22:22:26,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:26,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:26,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:26,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:26,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:26,271 INFO L87 Difference]: Start difference. First operand 6925 states and 18699 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:26,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:26,582 INFO L93 Difference]: Finished difference Result 8222 states and 22123 transitions. [2022-02-10 22:22:26,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:22:26,582 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:26,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:26,594 INFO L225 Difference]: With dead ends: 8222 [2022-02-10 22:22:26,594 INFO L226 Difference]: Without dead ends: 7943 [2022-02-10 22:22:26,595 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2022-02-10 22:22:26,595 INFO L934 BasicCegarLoop]: 262 mSDtfsCounter, 243 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1888 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 22:22:26,595 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 1888 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:26,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7943 states. [2022-02-10 22:22:26,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7943 to 6937. [2022-02-10 22:22:26,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.7001153402537486) internal successors, (18728), 6936 states have internal predecessors, (18728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:26,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18728 transitions. [2022-02-10 22:22:26,680 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18728 transitions. Word has length 91 [2022-02-10 22:22:26,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:26,680 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18728 transitions. [2022-02-10 22:22:26,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:26,681 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18728 transitions. [2022-02-10 22:22:26,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:26,689 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:26,689 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:26,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-10 22:22:26,689 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:26,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:26,690 INFO L85 PathProgramCache]: Analyzing trace with hash -769674450, now seen corresponding path program 27 times [2022-02-10 22:22:26,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:26,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902334669] [2022-02-10 22:22:26,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:26,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:26,778 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 22:22:26,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:26,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902334669] [2022-02-10 22:22:26,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902334669] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:26,779 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:26,779 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:26,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028975193] [2022-02-10 22:22:26,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:26,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:26,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:26,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:26,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:26,780 INFO L87 Difference]: Start difference. First operand 6937 states and 18728 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:27,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:27,040 INFO L93 Difference]: Finished difference Result 8158 states and 21955 transitions. [2022-02-10 22:22:27,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:22:27,040 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:27,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:27,051 INFO L225 Difference]: With dead ends: 8158 [2022-02-10 22:22:27,052 INFO L226 Difference]: Without dead ends: 7907 [2022-02-10 22:22:27,052 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:22:27,052 INFO L934 BasicCegarLoop]: 258 mSDtfsCounter, 198 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:27,052 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 2091 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:27,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7907 states. [2022-02-10 22:22:27,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7907 to 6941. [2022-02-10 22:22:27,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.6995677233429394) internal successors, (18735), 6940 states have internal predecessors, (18735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:27,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18735 transitions. [2022-02-10 22:22:27,146 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18735 transitions. Word has length 91 [2022-02-10 22:22:27,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:27,146 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18735 transitions. [2022-02-10 22:22:27,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:27,146 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18735 transitions. [2022-02-10 22:22:27,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:27,155 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:27,155 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] [2022-02-10 22:22:27,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-10 22:22:27,156 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:27,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:27,156 INFO L85 PathProgramCache]: Analyzing trace with hash 723146984, now seen corresponding path program 28 times [2022-02-10 22:22:27,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:27,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787352110] [2022-02-10 22:22:27,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:27,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:27,250 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 22:22:27,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:27,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787352110] [2022-02-10 22:22:27,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787352110] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:27,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:27,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:27,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754889337] [2022-02-10 22:22:27,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:27,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:27,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:27,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:27,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:27,251 INFO L87 Difference]: Start difference. First operand 6941 states and 18735 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:27,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:27,475 INFO L93 Difference]: Finished difference Result 8129 states and 21873 transitions. [2022-02-10 22:22:27,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:22:27,476 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:27,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:27,487 INFO L225 Difference]: With dead ends: 8129 [2022-02-10 22:22:27,488 INFO L226 Difference]: Without dead ends: 7867 [2022-02-10 22:22:27,488 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:22:27,488 INFO L934 BasicCegarLoop]: 259 mSDtfsCounter, 176 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:27,488 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 1818 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:27,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7867 states. [2022-02-10 22:22:27,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7867 to 6933. [2022-02-10 22:22:27,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.7000865551067514) internal successors, (18717), 6932 states have internal predecessors, (18717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:27,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18717 transitions. [2022-02-10 22:22:27,575 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18717 transitions. Word has length 91 [2022-02-10 22:22:27,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:27,575 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18717 transitions. [2022-02-10 22:22:27,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:27,575 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18717 transitions. [2022-02-10 22:22:27,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:27,583 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:27,583 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:27,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-10 22:22:27,583 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:27,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:27,584 INFO L85 PathProgramCache]: Analyzing trace with hash -269171586, now seen corresponding path program 29 times [2022-02-10 22:22:27,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:27,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501116167] [2022-02-10 22:22:27,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:27,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:27,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:27,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:27,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501116167] [2022-02-10 22:22:27,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501116167] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:27,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:27,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:27,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068553454] [2022-02-10 22:22:27,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:27,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:27,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:27,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:27,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:27,680 INFO L87 Difference]: Start difference. First operand 6933 states and 18717 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:27,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:27,929 INFO L93 Difference]: Finished difference Result 8189 states and 22017 transitions. [2022-02-10 22:22:27,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:22:27,929 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:27,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:27,940 INFO L225 Difference]: With dead ends: 8189 [2022-02-10 22:22:27,940 INFO L226 Difference]: Without dead ends: 7904 [2022-02-10 22:22:27,940 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:22:27,940 INFO L934 BasicCegarLoop]: 260 mSDtfsCounter, 218 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:27,941 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 1690 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:27,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7904 states. [2022-02-10 22:22:28,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7904 to 6937. [2022-02-10 22:22:28,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.699538638985006) internal successors, (18724), 6936 states have internal predecessors, (18724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:28,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18724 transitions. [2022-02-10 22:22:28,025 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18724 transitions. Word has length 91 [2022-02-10 22:22:28,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:28,025 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18724 transitions. [2022-02-10 22:22:28,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:28,025 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18724 transitions. [2022-02-10 22:22:28,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:28,033 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:28,033 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:28,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-10 22:22:28,033 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:28,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:28,034 INFO L85 PathProgramCache]: Analyzing trace with hash -687353240, now seen corresponding path program 30 times [2022-02-10 22:22:28,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:28,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270992350] [2022-02-10 22:22:28,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:28,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:28,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:28,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:28,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270992350] [2022-02-10 22:22:28,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270992350] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:28,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:28,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:28,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624114683] [2022-02-10 22:22:28,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:28,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:28,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:28,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:28,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:28,116 INFO L87 Difference]: Start difference. First operand 6937 states and 18724 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:28,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:28,342 INFO L93 Difference]: Finished difference Result 8122 states and 21852 transitions. [2022-02-10 22:22:28,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 22:22:28,342 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:28,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:28,353 INFO L225 Difference]: With dead ends: 8122 [2022-02-10 22:22:28,354 INFO L226 Difference]: Without dead ends: 7871 [2022-02-10 22:22:28,354 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2022-02-10 22:22:28,354 INFO L934 BasicCegarLoop]: 255 mSDtfsCounter, 199 mSDsluCounter, 1870 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 2085 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:28,354 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 2085 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:28,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7871 states. [2022-02-10 22:22:28,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7871 to 6941. [2022-02-10 22:22:28,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.698991354466859) internal successors, (18731), 6940 states have internal predecessors, (18731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:28,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18731 transitions. [2022-02-10 22:22:28,444 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18731 transitions. Word has length 91 [2022-02-10 22:22:28,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:28,445 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18731 transitions. [2022-02-10 22:22:28,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:28,445 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18731 transitions. [2022-02-10 22:22:28,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:28,453 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:28,453 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] [2022-02-10 22:22:28,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-10 22:22:28,453 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:28,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:28,453 INFO L85 PathProgramCache]: Analyzing trace with hash 805468194, now seen corresponding path program 31 times [2022-02-10 22:22:28,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:28,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558814148] [2022-02-10 22:22:28,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:28,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:28,539 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 22:22:28,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:28,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558814148] [2022-02-10 22:22:28,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558814148] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:28,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:28,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:28,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414751849] [2022-02-10 22:22:28,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:28,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:28,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:28,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:28,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:28,540 INFO L87 Difference]: Start difference. First operand 6941 states and 18731 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:28,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:28,806 INFO L93 Difference]: Finished difference Result 8093 states and 21770 transitions. [2022-02-10 22:22:28,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:28,806 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:28,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:28,817 INFO L225 Difference]: With dead ends: 8093 [2022-02-10 22:22:28,817 INFO L226 Difference]: Without dead ends: 7827 [2022-02-10 22:22:28,817 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2022-02-10 22:22:28,818 INFO L934 BasicCegarLoop]: 252 mSDtfsCounter, 201 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 2054 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 22:22:28,818 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 2054 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:28,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7827 states. [2022-02-10 22:22:28,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7827 to 6929. [2022-02-10 22:22:28,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 2.7000577367205545) internal successors, (18706), 6928 states have internal predecessors, (18706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:28,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 18706 transitions. [2022-02-10 22:22:28,901 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 18706 transitions. Word has length 91 [2022-02-10 22:22:28,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:28,901 INFO L470 AbstractCegarLoop]: Abstraction has 6929 states and 18706 transitions. [2022-02-10 22:22:28,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:28,901 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 18706 transitions. [2022-02-10 22:22:28,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:28,909 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:28,909 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:28,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-10 22:22:28,909 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:28,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:28,909 INFO L85 PathProgramCache]: Analyzing trace with hash 853696490, now seen corresponding path program 32 times [2022-02-10 22:22:28,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:28,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625835110] [2022-02-10 22:22:28,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:28,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:28,985 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 22:22:28,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:28,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625835110] [2022-02-10 22:22:28,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625835110] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:28,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:28,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:28,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817683610] [2022-02-10 22:22:28,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:28,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:28,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:28,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:28,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:28,986 INFO L87 Difference]: Start difference. First operand 6929 states and 18706 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:29,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:29,364 INFO L93 Difference]: Finished difference Result 8651 states and 23106 transitions. [2022-02-10 22:22:29,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-10 22:22:29,364 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:29,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:29,376 INFO L225 Difference]: With dead ends: 8651 [2022-02-10 22:22:29,376 INFO L226 Difference]: Without dead ends: 8344 [2022-02-10 22:22:29,376 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:22:29,377 INFO L934 BasicCegarLoop]: 317 mSDtfsCounter, 562 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 2468 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 22:22:29,377 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [562 Valid, 2468 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:29,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8344 states. [2022-02-10 22:22:29,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8344 to 6877. [2022-02-10 22:22:29,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6877 states, 6876 states have (on average 2.6961896451425247) internal successors, (18539), 6876 states have internal predecessors, (18539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:29,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6877 states to 6877 states and 18539 transitions. [2022-02-10 22:22:29,469 INFO L78 Accepts]: Start accepts. Automaton has 6877 states and 18539 transitions. Word has length 91 [2022-02-10 22:22:29,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:29,469 INFO L470 AbstractCegarLoop]: Abstraction has 6877 states and 18539 transitions. [2022-02-10 22:22:29,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:29,469 INFO L276 IsEmpty]: Start isEmpty. Operand 6877 states and 18539 transitions. [2022-02-10 22:22:29,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:29,496 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:29,496 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] [2022-02-10 22:22:29,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-10 22:22:29,496 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:29,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:29,497 INFO L85 PathProgramCache]: Analyzing trace with hash -974686014, now seen corresponding path program 33 times [2022-02-10 22:22:29,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:29,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410622178] [2022-02-10 22:22:29,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:29,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:29,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:29,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:29,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410622178] [2022-02-10 22:22:29,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410622178] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:29,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:29,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:29,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954976799] [2022-02-10 22:22:29,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:29,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:29,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:29,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:29,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:29,577 INFO L87 Difference]: Start difference. First operand 6877 states and 18539 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:29,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:29,885 INFO L93 Difference]: Finished difference Result 8114 states and 21798 transitions. [2022-02-10 22:22:29,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:22:29,885 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:29,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:29,896 INFO L225 Difference]: With dead ends: 8114 [2022-02-10 22:22:29,896 INFO L226 Difference]: Without dead ends: 7835 [2022-02-10 22:22:29,896 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=242, Invalid=814, Unknown=0, NotChecked=0, Total=1056 [2022-02-10 22:22:29,897 INFO L934 BasicCegarLoop]: 286 mSDtfsCounter, 324 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:29,897 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 1754 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:29,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7835 states. [2022-02-10 22:22:29,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7835 to 6881. [2022-02-10 22:22:29,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6881 states, 6880 states have (on average 2.6956395348837208) internal successors, (18546), 6880 states have internal predecessors, (18546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:29,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 18546 transitions. [2022-02-10 22:22:29,979 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 18546 transitions. Word has length 91 [2022-02-10 22:22:29,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:29,979 INFO L470 AbstractCegarLoop]: Abstraction has 6881 states and 18546 transitions. [2022-02-10 22:22:29,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:29,979 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 18546 transitions. [2022-02-10 22:22:29,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:29,987 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:29,987 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:29,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-10 22:22:29,987 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:29,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:29,987 INFO L85 PathProgramCache]: Analyzing trace with hash 269276080, now seen corresponding path program 34 times [2022-02-10 22:22:29,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:29,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396087229] [2022-02-10 22:22:29,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:29,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:30,064 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 22:22:30,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:30,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396087229] [2022-02-10 22:22:30,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396087229] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:30,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:30,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:30,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432890594] [2022-02-10 22:22:30,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:30,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:30,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:30,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:30,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:30,066 INFO L87 Difference]: Start difference. First operand 6881 states and 18546 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:30,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:30,295 INFO L93 Difference]: Finished difference Result 8034 states and 21586 transitions. [2022-02-10 22:22:30,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:22:30,295 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:30,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:30,306 INFO L225 Difference]: With dead ends: 8034 [2022-02-10 22:22:30,306 INFO L226 Difference]: Without dead ends: 7783 [2022-02-10 22:22:30,306 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=590, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:22:30,307 INFO L934 BasicCegarLoop]: 279 mSDtfsCounter, 268 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:30,307 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 2013 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:30,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7783 states. [2022-02-10 22:22:30,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7783 to 6885. [2022-02-10 22:22:30,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6885 states, 6884 states have (on average 2.6950900639163278) internal successors, (18553), 6884 states have internal predecessors, (18553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:30,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6885 states to 6885 states and 18553 transitions. [2022-02-10 22:22:30,392 INFO L78 Accepts]: Start accepts. Automaton has 6885 states and 18553 transitions. Word has length 91 [2022-02-10 22:22:30,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:30,392 INFO L470 AbstractCegarLoop]: Abstraction has 6885 states and 18553 transitions. [2022-02-10 22:22:30,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:30,393 INFO L276 IsEmpty]: Start isEmpty. Operand 6885 states and 18553 transitions. [2022-02-10 22:22:30,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:30,400 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:30,400 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] [2022-02-10 22:22:30,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-10 22:22:30,401 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:30,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:30,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1762097514, now seen corresponding path program 35 times [2022-02-10 22:22:30,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:30,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472260324] [2022-02-10 22:22:30,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:30,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:30,478 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 22:22:30,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:30,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472260324] [2022-02-10 22:22:30,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472260324] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:30,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:30,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:30,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203886011] [2022-02-10 22:22:30,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:30,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:30,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:30,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:30,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:30,479 INFO L87 Difference]: Start difference. First operand 6885 states and 18553 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:30,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:30,674 INFO L93 Difference]: Finished difference Result 7997 states and 21482 transitions. [2022-02-10 22:22:30,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:22:30,674 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:30,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:30,686 INFO L225 Difference]: With dead ends: 7997 [2022-02-10 22:22:30,686 INFO L226 Difference]: Without dead ends: 7719 [2022-02-10 22:22:30,686 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:22:30,686 INFO L934 BasicCegarLoop]: 273 mSDtfsCounter, 238 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:30,687 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 2182 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:30,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7719 states. [2022-02-10 22:22:30,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7719 to 6845. [2022-02-10 22:22:30,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6845 states, 6844 states have (on average 2.695353594389246) internal successors, (18447), 6844 states have internal predecessors, (18447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:30,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6845 states to 6845 states and 18447 transitions. [2022-02-10 22:22:30,770 INFO L78 Accepts]: Start accepts. Automaton has 6845 states and 18447 transitions. Word has length 91 [2022-02-10 22:22:30,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:30,770 INFO L470 AbstractCegarLoop]: Abstraction has 6845 states and 18447 transitions. [2022-02-10 22:22:30,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:30,770 INFO L276 IsEmpty]: Start isEmpty. Operand 6845 states and 18447 transitions. [2022-02-10 22:22:30,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:30,778 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:30,778 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:30,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-10 22:22:30,778 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:30,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:30,779 INFO L85 PathProgramCache]: Analyzing trace with hash 629696244, now seen corresponding path program 1 times [2022-02-10 22:22:30,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:30,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106344464] [2022-02-10 22:22:30,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:30,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:30,876 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 22:22:30,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:30,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106344464] [2022-02-10 22:22:30,877 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106344464] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:30,877 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:30,877 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:30,877 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852724372] [2022-02-10 22:22:30,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:30,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:30,877 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:30,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:30,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:30,878 INFO L87 Difference]: Start difference. First operand 6845 states and 18447 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:31,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:31,255 INFO L93 Difference]: Finished difference Result 8662 states and 23037 transitions. [2022-02-10 22:22:31,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-10 22:22:31,255 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:31,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:31,268 INFO L225 Difference]: With dead ends: 8662 [2022-02-10 22:22:31,268 INFO L226 Difference]: Without dead ends: 8340 [2022-02-10 22:22:31,268 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:22:31,269 INFO L934 BasicCegarLoop]: 359 mSDtfsCounter, 481 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:31,269 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 2200 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:31,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8340 states. [2022-02-10 22:22:31,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8340 to 6753. [2022-02-10 22:22:31,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6753 states, 6752 states have (on average 2.696830568720379) internal successors, (18209), 6752 states have internal predecessors, (18209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:31,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6753 states to 6753 states and 18209 transitions. [2022-02-10 22:22:31,356 INFO L78 Accepts]: Start accepts. Automaton has 6753 states and 18209 transitions. Word has length 91 [2022-02-10 22:22:31,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:31,356 INFO L470 AbstractCegarLoop]: Abstraction has 6753 states and 18209 transitions. [2022-02-10 22:22:31,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:31,356 INFO L276 IsEmpty]: Start isEmpty. Operand 6753 states and 18209 transitions. [2022-02-10 22:22:31,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:31,363 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:31,363 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:31,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-10 22:22:31,363 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:31,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:31,364 INFO L85 PathProgramCache]: Analyzing trace with hash 2025620248, now seen corresponding path program 2 times [2022-02-10 22:22:31,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:31,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702891148] [2022-02-10 22:22:31,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:31,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:31,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:31,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:31,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702891148] [2022-02-10 22:22:31,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702891148] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:31,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:31,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:31,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513124764] [2022-02-10 22:22:31,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:31,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:31,447 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:31,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:31,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:31,448 INFO L87 Difference]: Start difference. First operand 6753 states and 18209 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:31,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:31,787 INFO L93 Difference]: Finished difference Result 8011 states and 21504 transitions. [2022-02-10 22:22:31,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:22:31,787 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:31,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:31,799 INFO L225 Difference]: With dead ends: 8011 [2022-02-10 22:22:31,799 INFO L226 Difference]: Without dead ends: 7720 [2022-02-10 22:22:31,800 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=242, Invalid=814, Unknown=0, NotChecked=0, Total=1056 [2022-02-10 22:22:31,800 INFO L934 BasicCegarLoop]: 320 mSDtfsCounter, 255 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:31,800 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 1931 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:31,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7720 states. [2022-02-10 22:22:31,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7720 to 6757. [2022-02-10 22:22:31,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6757 states, 6756 states have (on average 2.6962699822380105) internal successors, (18216), 6756 states have internal predecessors, (18216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:31,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6757 states to 6757 states and 18216 transitions. [2022-02-10 22:22:31,896 INFO L78 Accepts]: Start accepts. Automaton has 6757 states and 18216 transitions. Word has length 91 [2022-02-10 22:22:31,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:31,896 INFO L470 AbstractCegarLoop]: Abstraction has 6757 states and 18216 transitions. [2022-02-10 22:22:31,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:31,896 INFO L276 IsEmpty]: Start isEmpty. Operand 6757 states and 18216 transitions. [2022-02-10 22:22:31,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:31,904 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:31,904 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] [2022-02-10 22:22:31,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-10 22:22:31,904 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:31,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:31,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1607438594, now seen corresponding path program 3 times [2022-02-10 22:22:31,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:31,904 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681019289] [2022-02-10 22:22:31,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:31,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:31,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:31,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:31,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681019289] [2022-02-10 22:22:31,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681019289] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:31,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:31,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:31,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989560925] [2022-02-10 22:22:31,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:31,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:31,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:31,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:31,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:31,997 INFO L87 Difference]: Start difference. First operand 6757 states and 18216 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:32,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:32,245 INFO L93 Difference]: Finished difference Result 7908 states and 21240 transitions. [2022-02-10 22:22:32,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:22:32,245 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:32,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:32,261 INFO L225 Difference]: With dead ends: 7908 [2022-02-10 22:22:32,261 INFO L226 Difference]: Without dead ends: 7651 [2022-02-10 22:22:32,261 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:32,262 INFO L934 BasicCegarLoop]: 304 mSDtfsCounter, 188 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:32,262 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 2076 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:32,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7651 states. [2022-02-10 22:22:32,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7651 to 6761. [2022-02-10 22:22:32,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6761 states, 6760 states have (on average 2.6957100591715975) internal successors, (18223), 6760 states have internal predecessors, (18223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:32,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6761 states to 6761 states and 18223 transitions. [2022-02-10 22:22:32,389 INFO L78 Accepts]: Start accepts. Automaton has 6761 states and 18223 transitions. Word has length 91 [2022-02-10 22:22:32,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:32,389 INFO L470 AbstractCegarLoop]: Abstraction has 6761 states and 18223 transitions. [2022-02-10 22:22:32,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:32,389 INFO L276 IsEmpty]: Start isEmpty. Operand 6761 states and 18223 transitions. [2022-02-10 22:22:32,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:32,400 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:32,400 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] [2022-02-10 22:22:32,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-10 22:22:32,400 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:32,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:32,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1194707268, now seen corresponding path program 4 times [2022-02-10 22:22:32,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:32,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454451648] [2022-02-10 22:22:32,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:32,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:32,488 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 22:22:32,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:32,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454451648] [2022-02-10 22:22:32,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454451648] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:32,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:32,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:32,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976576771] [2022-02-10 22:22:32,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:32,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:32,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:32,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:32,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:32,490 INFO L87 Difference]: Start difference. First operand 6761 states and 18223 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:32,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:32,748 INFO L93 Difference]: Finished difference Result 7879 states and 21158 transitions. [2022-02-10 22:22:32,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:22:32,748 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:32,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:32,759 INFO L225 Difference]: With dead ends: 7879 [2022-02-10 22:22:32,759 INFO L226 Difference]: Without dead ends: 7607 [2022-02-10 22:22:32,760 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=590, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:22:32,760 INFO L934 BasicCegarLoop]: 312 mSDtfsCounter, 203 mSDsluCounter, 2185 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:32,760 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 2445 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:32,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7607 states. [2022-02-10 22:22:32,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7607 to 6735. [2022-02-10 22:22:32,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6735 states, 6734 states have (on average 2.696762696762697) internal successors, (18160), 6734 states have internal predecessors, (18160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:32,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6735 states to 6735 states and 18160 transitions. [2022-02-10 22:22:32,842 INFO L78 Accepts]: Start accepts. Automaton has 6735 states and 18160 transitions. Word has length 91 [2022-02-10 22:22:32,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:32,842 INFO L470 AbstractCegarLoop]: Abstraction has 6735 states and 18160 transitions. [2022-02-10 22:22:32,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:32,842 INFO L276 IsEmpty]: Start isEmpty. Operand 6735 states and 18160 transitions. [2022-02-10 22:22:32,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:32,850 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:32,850 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] [2022-02-10 22:22:32,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-10 22:22:32,850 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:32,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:32,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1850666310, now seen corresponding path program 5 times [2022-02-10 22:22:32,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:32,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789960138] [2022-02-10 22:22:32,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:32,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:32,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:32,937 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:32,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789960138] [2022-02-10 22:22:32,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789960138] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:32,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:32,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:32,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157432312] [2022-02-10 22:22:32,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:32,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:32,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:32,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:32,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:32,938 INFO L87 Difference]: Start difference. First operand 6735 states and 18160 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:33,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:33,251 INFO L93 Difference]: Finished difference Result 8008 states and 21503 transitions. [2022-02-10 22:22:33,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:22:33,251 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:33,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:33,262 INFO L225 Difference]: With dead ends: 8008 [2022-02-10 22:22:33,262 INFO L226 Difference]: Without dead ends: 7723 [2022-02-10 22:22:33,263 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2022-02-10 22:22:33,263 INFO L934 BasicCegarLoop]: 274 mSDtfsCounter, 187 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:33,263 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 2392 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:33,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7723 states. [2022-02-10 22:22:33,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7723 to 6743. [2022-02-10 22:22:33,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6743 states, 6742 states have (on average 2.6962325719371107) internal successors, (18178), 6742 states have internal predecessors, (18178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:33,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 18178 transitions. [2022-02-10 22:22:33,349 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 18178 transitions. Word has length 91 [2022-02-10 22:22:33,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:33,349 INFO L470 AbstractCegarLoop]: Abstraction has 6743 states and 18178 transitions. [2022-02-10 22:22:33,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:33,350 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 18178 transitions. [2022-02-10 22:22:33,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:33,357 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:33,357 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] [2022-02-10 22:22:33,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-10 22:22:33,357 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:33,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:33,357 INFO L85 PathProgramCache]: Analyzing trace with hash -606704216, now seen corresponding path program 6 times [2022-02-10 22:22:33,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:33,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003523704] [2022-02-10 22:22:33,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:33,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:33,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:33,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:33,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003523704] [2022-02-10 22:22:33,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003523704] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:33,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:33,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:33,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457737024] [2022-02-10 22:22:33,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:33,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:33,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:33,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:33,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:33,455 INFO L87 Difference]: Start difference. First operand 6743 states and 18178 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:33,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:33,685 INFO L93 Difference]: Finished difference Result 7956 states and 21368 transitions. [2022-02-10 22:22:33,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:33,685 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:33,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:33,696 INFO L225 Difference]: With dead ends: 7956 [2022-02-10 22:22:33,696 INFO L226 Difference]: Without dead ends: 7699 [2022-02-10 22:22:33,696 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2022-02-10 22:22:33,696 INFO L934 BasicCegarLoop]: 274 mSDtfsCounter, 160 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:33,697 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1788 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:33,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7699 states. [2022-02-10 22:22:33,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7699 to 6747. [2022-02-10 22:22:33,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 6746 states have (on average 2.6956715090423953) internal successors, (18185), 6746 states have internal predecessors, (18185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:33,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 18185 transitions. [2022-02-10 22:22:33,784 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 18185 transitions. Word has length 91 [2022-02-10 22:22:33,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:33,784 INFO L470 AbstractCegarLoop]: Abstraction has 6747 states and 18185 transitions. [2022-02-10 22:22:33,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:33,784 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 18185 transitions. [2022-02-10 22:22:33,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:33,791 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:33,791 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:33,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-10 22:22:33,792 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:33,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:33,792 INFO L85 PathProgramCache]: Analyzing trace with hash 886117218, now seen corresponding path program 7 times [2022-02-10 22:22:33,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:33,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554513002] [2022-02-10 22:22:33,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:33,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:33,873 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 22:22:33,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:33,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554513002] [2022-02-10 22:22:33,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554513002] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:33,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:33,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:33,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642378633] [2022-02-10 22:22:33,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:33,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:33,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:33,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:33,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:33,875 INFO L87 Difference]: Start difference. First operand 6747 states and 18185 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:34,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:34,107 INFO L93 Difference]: Finished difference Result 7927 states and 21286 transitions. [2022-02-10 22:22:34,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 22:22:34,108 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:34,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:34,118 INFO L225 Difference]: With dead ends: 7927 [2022-02-10 22:22:34,118 INFO L226 Difference]: Without dead ends: 7659 [2022-02-10 22:22:34,118 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-02-10 22:22:34,119 INFO L934 BasicCegarLoop]: 276 mSDtfsCounter, 164 mSDsluCounter, 1707 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:34,119 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 1945 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:34,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2022-02-10 22:22:34,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 6739. [2022-02-10 22:22:34,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6739 states, 6738 states have (on average 2.6962006530127636) internal successors, (18167), 6738 states have internal predecessors, (18167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:34,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6739 states to 6739 states and 18167 transitions. [2022-02-10 22:22:34,213 INFO L78 Accepts]: Start accepts. Automaton has 6739 states and 18167 transitions. Word has length 91 [2022-02-10 22:22:34,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:34,213 INFO L470 AbstractCegarLoop]: Abstraction has 6739 states and 18167 transitions. [2022-02-10 22:22:34,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:34,213 INFO L276 IsEmpty]: Start isEmpty. Operand 6739 states and 18167 transitions. [2022-02-10 22:22:34,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:34,221 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:34,221 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] [2022-02-10 22:22:34,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-10 22:22:34,221 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:34,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:34,221 INFO L85 PathProgramCache]: Analyzing trace with hash -106201352, now seen corresponding path program 8 times [2022-02-10 22:22:34,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:34,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788808887] [2022-02-10 22:22:34,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:34,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:34,322 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 22:22:34,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:34,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788808887] [2022-02-10 22:22:34,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788808887] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:34,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:34,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:34,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792754296] [2022-02-10 22:22:34,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:34,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:34,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:34,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:34,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:34,323 INFO L87 Difference]: Start difference. First operand 6739 states and 18167 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:34,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:34,657 INFO L93 Difference]: Finished difference Result 8011 states and 21496 transitions. [2022-02-10 22:22:34,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:22:34,657 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:34,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:34,668 INFO L225 Difference]: With dead ends: 8011 [2022-02-10 22:22:34,668 INFO L226 Difference]: Without dead ends: 7720 [2022-02-10 22:22:34,668 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2022-02-10 22:22:34,669 INFO L934 BasicCegarLoop]: 283 mSDtfsCounter, 215 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 1979 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 22:22:34,669 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 1979 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:34,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7720 states. [2022-02-10 22:22:34,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7720 to 6743. [2022-02-10 22:22:34,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6743 states, 6742 states have (on average 2.6956392761791754) internal successors, (18174), 6742 states have internal predecessors, (18174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:34,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 18174 transitions. [2022-02-10 22:22:34,748 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 18174 transitions. Word has length 91 [2022-02-10 22:22:34,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:34,749 INFO L470 AbstractCegarLoop]: Abstraction has 6743 states and 18174 transitions. [2022-02-10 22:22:34,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:34,749 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 18174 transitions. [2022-02-10 22:22:34,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:34,756 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:34,756 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:34,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-10 22:22:34,756 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:34,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:34,757 INFO L85 PathProgramCache]: Analyzing trace with hash -524383006, now seen corresponding path program 9 times [2022-02-10 22:22:34,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:34,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339880732] [2022-02-10 22:22:34,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:34,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:34,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:34,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:34,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339880732] [2022-02-10 22:22:34,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339880732] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:34,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:34,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:34,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197935832] [2022-02-10 22:22:34,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:34,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:34,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:34,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:34,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:34,864 INFO L87 Difference]: Start difference. First operand 6743 states and 18174 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:35,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:35,119 INFO L93 Difference]: Finished difference Result 7920 states and 21265 transitions. [2022-02-10 22:22:35,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:22:35,120 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:35,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:35,133 INFO L225 Difference]: With dead ends: 7920 [2022-02-10 22:22:35,133 INFO L226 Difference]: Without dead ends: 7663 [2022-02-10 22:22:35,134 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:22:35,135 INFO L934 BasicCegarLoop]: 272 mSDtfsCounter, 158 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 2142 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 22:22:35,135 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 2142 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:35,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7663 states. [2022-02-10 22:22:35,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7663 to 6747. [2022-02-10 22:22:35,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 6746 states have (on average 2.6950785650756) internal successors, (18181), 6746 states have internal predecessors, (18181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:35,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 18181 transitions. [2022-02-10 22:22:35,223 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 18181 transitions. Word has length 91 [2022-02-10 22:22:35,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:35,223 INFO L470 AbstractCegarLoop]: Abstraction has 6747 states and 18181 transitions. [2022-02-10 22:22:35,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:35,223 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 18181 transitions. [2022-02-10 22:22:35,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:35,231 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:35,231 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:35,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-10 22:22:35,231 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:35,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:35,232 INFO L85 PathProgramCache]: Analyzing trace with hash 968438428, now seen corresponding path program 10 times [2022-02-10 22:22:35,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:35,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941439574] [2022-02-10 22:22:35,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:35,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:35,325 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 22:22:35,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:35,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941439574] [2022-02-10 22:22:35,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941439574] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:35,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:35,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:35,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272430089] [2022-02-10 22:22:35,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:35,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:35,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:35,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:35,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:35,326 INFO L87 Difference]: Start difference. First operand 6747 states and 18181 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:35,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:35,569 INFO L93 Difference]: Finished difference Result 7879 states and 21150 transitions. [2022-02-10 22:22:35,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:22:35,569 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:35,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:35,582 INFO L225 Difference]: With dead ends: 7879 [2022-02-10 22:22:35,582 INFO L226 Difference]: Without dead ends: 7603 [2022-02-10 22:22:35,583 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:22:35,583 INFO L934 BasicCegarLoop]: 272 mSDtfsCounter, 171 mSDsluCounter, 1975 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 2201 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:35,583 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 2201 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:35,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7603 states. [2022-02-10 22:22:35,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7603 to 6717. [2022-02-10 22:22:35,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6717 states, 6716 states have (on average 2.6966944609886836) internal successors, (18111), 6716 states have internal predecessors, (18111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:35,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6717 states to 6717 states and 18111 transitions. [2022-02-10 22:22:35,673 INFO L78 Accepts]: Start accepts. Automaton has 6717 states and 18111 transitions. Word has length 91 [2022-02-10 22:22:35,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:35,673 INFO L470 AbstractCegarLoop]: Abstraction has 6717 states and 18111 transitions. [2022-02-10 22:22:35,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:35,673 INFO L276 IsEmpty]: Start isEmpty. Operand 6717 states and 18111 transitions. [2022-02-10 22:22:35,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:35,681 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:35,681 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:35,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-10 22:22:35,681 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:35,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:35,681 INFO L85 PathProgramCache]: Analyzing trace with hash 712233108, now seen corresponding path program 11 times [2022-02-10 22:22:35,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:35,681 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927283732] [2022-02-10 22:22:35,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:35,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:35,758 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 22:22:35,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:35,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927283732] [2022-02-10 22:22:35,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927283732] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:35,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:35,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:35,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973853293] [2022-02-10 22:22:35,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:35,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:35,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:35,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:35,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:35,760 INFO L87 Difference]: Start difference. First operand 6717 states and 18111 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:36,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:36,054 INFO L93 Difference]: Finished difference Result 8104 states and 21751 transitions. [2022-02-10 22:22:36,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:22:36,054 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:36,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:36,064 INFO L225 Difference]: With dead ends: 8104 [2022-02-10 22:22:36,065 INFO L226 Difference]: Without dead ends: 7791 [2022-02-10 22:22:36,065 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:22:36,065 INFO L934 BasicCegarLoop]: 243 mSDtfsCounter, 187 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:36,065 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 1804 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:36,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7791 states. [2022-02-10 22:22:36,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7791 to 6725. [2022-02-10 22:22:36,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6725 states, 6724 states have (on average 2.696162998215348) internal successors, (18129), 6724 states have internal predecessors, (18129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:36,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6725 states to 6725 states and 18129 transitions. [2022-02-10 22:22:36,149 INFO L78 Accepts]: Start accepts. Automaton has 6725 states and 18129 transitions. Word has length 91 [2022-02-10 22:22:36,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:36,149 INFO L470 AbstractCegarLoop]: Abstraction has 6725 states and 18129 transitions. [2022-02-10 22:22:36,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:36,149 INFO L276 IsEmpty]: Start isEmpty. Operand 6725 states and 18129 transitions. [2022-02-10 22:22:36,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:36,157 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:36,157 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] [2022-02-10 22:22:36,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-10 22:22:36,157 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:36,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:36,157 INFO L85 PathProgramCache]: Analyzing trace with hash -456059060, now seen corresponding path program 12 times [2022-02-10 22:22:36,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:36,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800199831] [2022-02-10 22:22:36,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:36,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:36,250 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 22:22:36,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:36,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800199831] [2022-02-10 22:22:36,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800199831] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:36,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:36,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:36,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379031607] [2022-02-10 22:22:36,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:36,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:36,250 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:36,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:36,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:36,251 INFO L87 Difference]: Start difference. First operand 6725 states and 18129 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:36,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:36,561 INFO L93 Difference]: Finished difference Result 8076 states and 21682 transitions. [2022-02-10 22:22:36,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-10 22:22:36,561 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:36,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:36,574 INFO L225 Difference]: With dead ends: 8076 [2022-02-10 22:22:36,574 INFO L226 Difference]: Without dead ends: 7791 [2022-02-10 22:22:36,575 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:22:36,575 INFO L934 BasicCegarLoop]: 243 mSDtfsCounter, 161 mSDsluCounter, 1951 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2154 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 22:22:36,575 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 2154 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:36,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7791 states. [2022-02-10 22:22:36,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7791 to 6729. [2022-02-10 22:22:36,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6728 states have (on average 2.6956004756242566) internal successors, (18136), 6728 states have internal predecessors, (18136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:36,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 18136 transitions. [2022-02-10 22:22:36,683 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 18136 transitions. Word has length 91 [2022-02-10 22:22:36,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:36,683 INFO L470 AbstractCegarLoop]: Abstraction has 6729 states and 18136 transitions. [2022-02-10 22:22:36,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:36,683 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 18136 transitions. [2022-02-10 22:22:36,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:36,690 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:36,690 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] [2022-02-10 22:22:36,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-10 22:22:36,690 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:36,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:36,691 INFO L85 PathProgramCache]: Analyzing trace with hash 787903034, now seen corresponding path program 13 times [2022-02-10 22:22:36,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:36,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424046370] [2022-02-10 22:22:36,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:36,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:36,795 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 22:22:36,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:36,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424046370] [2022-02-10 22:22:36,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424046370] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:36,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:36,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:36,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651571016] [2022-02-10 22:22:36,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:36,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:36,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:36,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:36,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:36,797 INFO L87 Difference]: Start difference. First operand 6729 states and 18136 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:37,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:37,031 INFO L93 Difference]: Finished difference Result 7996 states and 21470 transitions. [2022-02-10 22:22:37,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:37,032 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:37,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:37,044 INFO L225 Difference]: With dead ends: 7996 [2022-02-10 22:22:37,044 INFO L226 Difference]: Without dead ends: 7739 [2022-02-10 22:22:37,044 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:22:37,044 INFO L934 BasicCegarLoop]: 238 mSDtfsCounter, 123 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1569 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 22:22:37,044 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1569 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:37,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7739 states. [2022-02-10 22:22:37,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7739 to 6733. [2022-02-10 22:22:37,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.6950386215092097) internal successors, (18143), 6732 states have internal predecessors, (18143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:37,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18143 transitions. [2022-02-10 22:22:37,128 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18143 transitions. Word has length 91 [2022-02-10 22:22:37,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:37,128 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 18143 transitions. [2022-02-10 22:22:37,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:37,128 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18143 transitions. [2022-02-10 22:22:37,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:37,135 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:37,135 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] [2022-02-10 22:22:37,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-10 22:22:37,136 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:37,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:37,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2014242828, now seen corresponding path program 14 times [2022-02-10 22:22:37,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:37,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097377739] [2022-02-10 22:22:37,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:37,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:37,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:37,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:37,226 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:37,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097377739] [2022-02-10 22:22:37,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097377739] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:37,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:37,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:37,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651515342] [2022-02-10 22:22:37,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:37,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:37,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:37,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:37,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:37,227 INFO L87 Difference]: Start difference. First operand 6733 states and 18143 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:37,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:37,451 INFO L93 Difference]: Finished difference Result 7959 states and 21366 transitions. [2022-02-10 22:22:37,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:37,451 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:37,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:37,462 INFO L225 Difference]: With dead ends: 7959 [2022-02-10 22:22:37,462 INFO L226 Difference]: Without dead ends: 7687 [2022-02-10 22:22:37,463 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:37,463 INFO L934 BasicCegarLoop]: 237 mSDtfsCounter, 123 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:37,463 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1574 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:37,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7687 states. [2022-02-10 22:22:37,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7687 to 6721. [2022-02-10 22:22:37,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6721 states, 6720 states have (on average 2.6961309523809525) internal successors, (18118), 6720 states have internal predecessors, (18118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:37,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6721 states to 6721 states and 18118 transitions. [2022-02-10 22:22:37,547 INFO L78 Accepts]: Start accepts. Automaton has 6721 states and 18118 transitions. Word has length 91 [2022-02-10 22:22:37,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:37,547 INFO L470 AbstractCegarLoop]: Abstraction has 6721 states and 18118 transitions. [2022-02-10 22:22:37,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:37,548 INFO L276 IsEmpty]: Start isEmpty. Operand 6721 states and 18118 transitions. [2022-02-10 22:22:37,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:37,555 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:37,555 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:37,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-10 22:22:37,555 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:37,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:37,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1391839194, now seen corresponding path program 15 times [2022-02-10 22:22:37,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:37,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049890682] [2022-02-10 22:22:37,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:37,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:37,635 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 22:22:37,635 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:37,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049890682] [2022-02-10 22:22:37,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049890682] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:37,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:37,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:37,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771533688] [2022-02-10 22:22:37,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:37,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:37,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:37,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:37,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:37,636 INFO L87 Difference]: Start difference. First operand 6721 states and 18118 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:37,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:37,886 INFO L93 Difference]: Finished difference Result 8024 states and 21539 transitions. [2022-02-10 22:22:37,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-10 22:22:37,886 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:37,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:37,897 INFO L225 Difference]: With dead ends: 8024 [2022-02-10 22:22:37,897 INFO L226 Difference]: Without dead ends: 7739 [2022-02-10 22:22:37,897 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=196, Invalid=616, Unknown=0, NotChecked=0, Total=812 [2022-02-10 22:22:37,897 INFO L934 BasicCegarLoop]: 242 mSDtfsCounter, 155 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1999 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 22:22:37,898 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 1999 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:37,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7739 states. [2022-02-10 22:22:37,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7739 to 6729. [2022-02-10 22:22:37,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6728 states have (on average 2.6956004756242566) internal successors, (18136), 6728 states have internal predecessors, (18136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:37,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 18136 transitions. [2022-02-10 22:22:37,980 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 18136 transitions. Word has length 91 [2022-02-10 22:22:37,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:37,980 INFO L470 AbstractCegarLoop]: Abstraction has 6729 states and 18136 transitions. [2022-02-10 22:22:37,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:37,981 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 18136 transitions. [2022-02-10 22:22:37,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:37,988 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:37,988 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] [2022-02-10 22:22:37,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-10 22:22:37,988 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:37,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:37,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1659166008, now seen corresponding path program 16 times [2022-02-10 22:22:37,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:37,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312162487] [2022-02-10 22:22:37,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:37,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:38,071 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 22:22:38,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:38,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312162487] [2022-02-10 22:22:38,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312162487] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:38,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:38,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:38,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816474620] [2022-02-10 22:22:38,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:38,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:38,072 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:38,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:38,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:38,073 INFO L87 Difference]: Start difference. First operand 6729 states and 18136 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:38,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:38,303 INFO L93 Difference]: Finished difference Result 7972 states and 21404 transitions. [2022-02-10 22:22:38,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:38,303 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:38,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:38,313 INFO L225 Difference]: With dead ends: 7972 [2022-02-10 22:22:38,314 INFO L226 Difference]: Without dead ends: 7715 [2022-02-10 22:22:38,314 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:22:38,314 INFO L934 BasicCegarLoop]: 235 mSDtfsCounter, 130 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:38,314 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 1893 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:38,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7715 states. [2022-02-10 22:22:38,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7715 to 6733. [2022-02-10 22:22:38,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.6950386215092097) internal successors, (18143), 6732 states have internal predecessors, (18143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:38,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18143 transitions. [2022-02-10 22:22:38,395 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18143 transitions. Word has length 91 [2022-02-10 22:22:38,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:38,395 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 18143 transitions. [2022-02-10 22:22:38,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:38,395 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18143 transitions. [2022-02-10 22:22:38,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:38,403 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:38,403 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] [2022-02-10 22:22:38,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-10 22:22:38,403 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:38,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:38,403 INFO L85 PathProgramCache]: Analyzing trace with hash -166344574, now seen corresponding path program 17 times [2022-02-10 22:22:38,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:38,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998492916] [2022-02-10 22:22:38,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:38,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:38,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:38,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:38,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998492916] [2022-02-10 22:22:38,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998492916] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:38,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:38,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:38,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654354335] [2022-02-10 22:22:38,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:38,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:38,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:38,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:38,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:38,492 INFO L87 Difference]: Start difference. First operand 6733 states and 18143 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:38,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:38,732 INFO L93 Difference]: Finished difference Result 7943 states and 21322 transitions. [2022-02-10 22:22:38,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 22:22:38,732 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:38,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:38,742 INFO L225 Difference]: With dead ends: 7943 [2022-02-10 22:22:38,742 INFO L226 Difference]: Without dead ends: 7675 [2022-02-10 22:22:38,742 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2022-02-10 22:22:38,743 INFO L934 BasicCegarLoop]: 237 mSDtfsCounter, 125 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1968 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 22:22:38,743 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 1968 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:38,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7675 states. [2022-02-10 22:22:38,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7675 to 6725. [2022-02-10 22:22:38,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6725 states, 6724 states have (on average 2.6955681142177275) internal successors, (18125), 6724 states have internal predecessors, (18125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:38,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6725 states to 6725 states and 18125 transitions. [2022-02-10 22:22:38,824 INFO L78 Accepts]: Start accepts. Automaton has 6725 states and 18125 transitions. Word has length 91 [2022-02-10 22:22:38,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:38,824 INFO L470 AbstractCegarLoop]: Abstraction has 6725 states and 18125 transitions. [2022-02-10 22:22:38,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:38,824 INFO L276 IsEmpty]: Start isEmpty. Operand 6725 states and 18125 transitions. [2022-02-10 22:22:38,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:38,831 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:38,832 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] [2022-02-10 22:22:38,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-10 22:22:38,832 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:38,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:38,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1158663144, now seen corresponding path program 18 times [2022-02-10 22:22:38,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:38,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601802702] [2022-02-10 22:22:38,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:38,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:38,925 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 22:22:38,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:38,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601802702] [2022-02-10 22:22:38,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601802702] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:38,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:38,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:38,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666355584] [2022-02-10 22:22:38,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:38,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:38,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:38,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:38,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:38,926 INFO L87 Difference]: Start difference. First operand 6725 states and 18125 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:39,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:39,245 INFO L93 Difference]: Finished difference Result 8011 states and 21488 transitions. [2022-02-10 22:22:39,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:22:39,245 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:39,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:39,256 INFO L225 Difference]: With dead ends: 8011 [2022-02-10 22:22:39,256 INFO L226 Difference]: Without dead ends: 7720 [2022-02-10 22:22:39,256 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=217, Invalid=653, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:22:39,257 INFO L934 BasicCegarLoop]: 242 mSDtfsCounter, 177 mSDsluCounter, 1968 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:39,257 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 2157 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:39,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7720 states. [2022-02-10 22:22:39,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7720 to 6729. [2022-02-10 22:22:39,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6728 states have (on average 2.6950059453032105) internal successors, (18132), 6728 states have internal predecessors, (18132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:39,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 18132 transitions. [2022-02-10 22:22:39,337 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 18132 transitions. Word has length 91 [2022-02-10 22:22:39,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:39,338 INFO L470 AbstractCegarLoop]: Abstraction has 6729 states and 18132 transitions. [2022-02-10 22:22:39,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:39,338 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 18132 transitions. [2022-02-10 22:22:39,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:39,345 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:39,345 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:39,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-10 22:22:39,346 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:39,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:39,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1576844798, now seen corresponding path program 19 times [2022-02-10 22:22:39,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:39,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204999474] [2022-02-10 22:22:39,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:39,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:39,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:39,430 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:39,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204999474] [2022-02-10 22:22:39,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204999474] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:39,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:39,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:39,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648421133] [2022-02-10 22:22:39,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:39,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:39,431 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:39,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:39,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:39,431 INFO L87 Difference]: Start difference. First operand 6729 states and 18132 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:39,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:39,668 INFO L93 Difference]: Finished difference Result 7932 states and 21290 transitions. [2022-02-10 22:22:39,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:22:39,668 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:39,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:39,680 INFO L225 Difference]: With dead ends: 7932 [2022-02-10 22:22:39,680 INFO L226 Difference]: Without dead ends: 7675 [2022-02-10 22:22:39,681 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:39,681 INFO L934 BasicCegarLoop]: 232 mSDtfsCounter, 132 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:39,681 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1934 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:39,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7675 states. [2022-02-10 22:22:39,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7675 to 6733. [2022-02-10 22:22:39,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.6944444444444446) internal successors, (18139), 6732 states have internal predecessors, (18139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:39,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18139 transitions. [2022-02-10 22:22:39,773 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18139 transitions. Word has length 91 [2022-02-10 22:22:39,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:39,773 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 18139 transitions. [2022-02-10 22:22:39,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:39,774 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18139 transitions. [2022-02-10 22:22:39,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:39,781 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:39,781 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:39,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-10 22:22:39,781 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:39,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:39,781 INFO L85 PathProgramCache]: Analyzing trace with hash -84023364, now seen corresponding path program 20 times [2022-02-10 22:22:39,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:39,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937804978] [2022-02-10 22:22:39,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:39,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:39,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:39,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:39,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937804978] [2022-02-10 22:22:39,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937804978] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:39,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:39,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:39,866 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653892564] [2022-02-10 22:22:39,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:39,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:39,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:39,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:39,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:39,867 INFO L87 Difference]: Start difference. First operand 6733 states and 18139 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:40,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:40,142 INFO L93 Difference]: Finished difference Result 7879 states and 21142 transitions. [2022-02-10 22:22:40,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:22:40,143 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:40,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:40,155 INFO L225 Difference]: With dead ends: 7879 [2022-02-10 22:22:40,155 INFO L226 Difference]: Without dead ends: 7599 [2022-02-10 22:22:40,155 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2022-02-10 22:22:40,155 INFO L934 BasicCegarLoop]: 231 mSDtfsCounter, 133 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:40,156 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 1534 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:40,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7599 states. [2022-02-10 22:22:40,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7599 to 6709. [2022-02-10 22:22:40,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6709 states, 6708 states have (on average 2.6960345855694694) internal successors, (18085), 6708 states have internal predecessors, (18085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6709 states to 6709 states and 18085 transitions. [2022-02-10 22:22:40,250 INFO L78 Accepts]: Start accepts. Automaton has 6709 states and 18085 transitions. Word has length 91 [2022-02-10 22:22:40,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:40,250 INFO L470 AbstractCegarLoop]: Abstraction has 6709 states and 18085 transitions. [2022-02-10 22:22:40,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:40,250 INFO L276 IsEmpty]: Start isEmpty. Operand 6709 states and 18085 transitions. [2022-02-10 22:22:40,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:40,258 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:40,258 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:40,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-10 22:22:40,259 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:40,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:40,259 INFO L85 PathProgramCache]: Analyzing trace with hash 766843090, now seen corresponding path program 21 times [2022-02-10 22:22:40,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:40,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777230217] [2022-02-10 22:22:40,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:40,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:40,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:40,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:40,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777230217] [2022-02-10 22:22:40,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777230217] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:40,352 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:40,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:40,352 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899597022] [2022-02-10 22:22:40,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:40,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:40,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:40,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:40,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:40,354 INFO L87 Difference]: Start difference. First operand 6709 states and 18085 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:40,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:40,676 INFO L93 Difference]: Finished difference Result 8294 states and 22104 transitions. [2022-02-10 22:22:40,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:22:40,676 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:40,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:40,688 INFO L225 Difference]: With dead ends: 8294 [2022-02-10 22:22:40,688 INFO L226 Difference]: Without dead ends: 7953 [2022-02-10 22:22:40,689 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=283, Invalid=839, Unknown=0, NotChecked=0, Total=1122 [2022-02-10 22:22:40,689 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 412 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:40,689 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1561 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:40,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7953 states. [2022-02-10 22:22:40,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7953 to 6633. [2022-02-10 22:22:40,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.692400482509047) internal successors, (17856), 6632 states have internal predecessors, (17856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:40,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17856 transitions. [2022-02-10 22:22:40,771 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17856 transitions. Word has length 91 [2022-02-10 22:22:40,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:40,771 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17856 transitions. [2022-02-10 22:22:40,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:40,771 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17856 transitions. [2022-02-10 22:22:40,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:40,778 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:40,778 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:40,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-10 22:22:40,778 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:40,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:40,779 INFO L85 PathProgramCache]: Analyzing trace with hash 519941212, now seen corresponding path program 22 times [2022-02-10 22:22:40,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:40,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885013648] [2022-02-10 22:22:40,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:40,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:40,876 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 22:22:40,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:40,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885013648] [2022-02-10 22:22:40,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885013648] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:40,877 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:40,877 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:40,877 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744887553] [2022-02-10 22:22:40,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:40,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:40,877 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:40,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:40,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:40,877 INFO L87 Difference]: Start difference. First operand 6633 states and 17856 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:41,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:41,192 INFO L93 Difference]: Finished difference Result 7674 states and 20566 transitions. [2022-02-10 22:22:41,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:22:41,193 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:41,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:41,203 INFO L225 Difference]: With dead ends: 7674 [2022-02-10 22:22:41,203 INFO L226 Difference]: Without dead ends: 7361 [2022-02-10 22:22:41,203 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=244, Invalid=812, Unknown=0, NotChecked=0, Total=1056 [2022-02-10 22:22:41,204 INFO L934 BasicCegarLoop]: 273 mSDtfsCounter, 233 mSDsluCounter, 1709 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 1940 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 22:22:41,204 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 1940 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:41,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7361 states. [2022-02-10 22:22:41,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7361 to 6637. [2022-02-10 22:22:41,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6637 states, 6636 states have (on average 2.6918324291742013) internal successors, (17863), 6636 states have internal predecessors, (17863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:41,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6637 states to 6637 states and 17863 transitions. [2022-02-10 22:22:41,282 INFO L78 Accepts]: Start accepts. Automaton has 6637 states and 17863 transitions. Word has length 91 [2022-02-10 22:22:41,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:41,283 INFO L470 AbstractCegarLoop]: Abstraction has 6637 states and 17863 transitions. [2022-02-10 22:22:41,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:41,283 INFO L276 IsEmpty]: Start isEmpty. Operand 6637 states and 17863 transitions. [2022-02-10 22:22:41,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:41,290 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:41,290 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] [2022-02-10 22:22:41,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-10 22:22:41,290 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:41,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:41,290 INFO L85 PathProgramCache]: Analyzing trace with hash -648350956, now seen corresponding path program 23 times [2022-02-10 22:22:41,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:41,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778640971] [2022-02-10 22:22:41,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:41,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:41,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:41,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:41,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778640971] [2022-02-10 22:22:41,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778640971] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:41,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:41,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:41,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260367787] [2022-02-10 22:22:41,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:41,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:41,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:41,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:41,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:41,366 INFO L87 Difference]: Start difference. First operand 6637 states and 17863 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:41,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:41,609 INFO L93 Difference]: Finished difference Result 7594 states and 20354 transitions. [2022-02-10 22:22:41,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-10 22:22:41,609 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:41,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:41,619 INFO L225 Difference]: With dead ends: 7594 [2022-02-10 22:22:41,619 INFO L226 Difference]: Without dead ends: 7309 [2022-02-10 22:22:41,619 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=684, Unknown=0, NotChecked=0, Total=870 [2022-02-10 22:22:41,620 INFO L934 BasicCegarLoop]: 266 mSDtfsCounter, 194 mSDsluCounter, 1956 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 2174 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 22:22:41,620 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 2174 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:41,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7309 states. [2022-02-10 22:22:41,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7309 to 6641. [2022-02-10 22:22:41,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6641 states, 6640 states have (on average 2.691265060240964) internal successors, (17870), 6640 states have internal predecessors, (17870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:41,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6641 states to 6641 states and 17870 transitions. [2022-02-10 22:22:41,708 INFO L78 Accepts]: Start accepts. Automaton has 6641 states and 17870 transitions. Word has length 91 [2022-02-10 22:22:41,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:41,708 INFO L470 AbstractCegarLoop]: Abstraction has 6641 states and 17870 transitions. [2022-02-10 22:22:41,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:41,708 INFO L276 IsEmpty]: Start isEmpty. Operand 6641 states and 17870 transitions. [2022-02-10 22:22:41,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:41,716 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:41,716 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:41,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-10 22:22:41,717 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:41,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:41,717 INFO L85 PathProgramCache]: Analyzing trace with hash 595611138, now seen corresponding path program 24 times [2022-02-10 22:22:41,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:41,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832758582] [2022-02-10 22:22:41,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:41,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:41,793 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 22:22:41,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:41,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832758582] [2022-02-10 22:22:41,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832758582] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:41,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:41,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:41,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961550140] [2022-02-10 22:22:41,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:41,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:41,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:41,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:41,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:41,795 INFO L87 Difference]: Start difference. First operand 6641 states and 17870 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:42,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:42,001 INFO L93 Difference]: Finished difference Result 7514 states and 20142 transitions. [2022-02-10 22:22:42,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:42,001 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:42,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:42,011 INFO L225 Difference]: With dead ends: 7514 [2022-02-10 22:22:42,011 INFO L226 Difference]: Without dead ends: 7257 [2022-02-10 22:22:42,013 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:22:42,013 INFO L934 BasicCegarLoop]: 259 mSDtfsCounter, 159 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1485 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 22:22:42,013 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 1485 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:42,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7257 states. [2022-02-10 22:22:42,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7257 to 6645. [2022-02-10 22:22:42,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6645 states, 6644 states have (on average 2.6906983744732087) internal successors, (17877), 6644 states have internal predecessors, (17877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6645 states to 6645 states and 17877 transitions. [2022-02-10 22:22:42,093 INFO L78 Accepts]: Start accepts. Automaton has 6645 states and 17877 transitions. Word has length 91 [2022-02-10 22:22:42,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:42,093 INFO L470 AbstractCegarLoop]: Abstraction has 6645 states and 17877 transitions. [2022-02-10 22:22:42,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:42,093 INFO L276 IsEmpty]: Start isEmpty. Operand 6645 states and 17877 transitions. [2022-02-10 22:22:42,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:42,100 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:42,100 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:42,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-10 22:22:42,101 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:42,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:42,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2088432572, now seen corresponding path program 25 times [2022-02-10 22:22:42,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:42,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833465069] [2022-02-10 22:22:42,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:42,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:42,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:42,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:42,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833465069] [2022-02-10 22:22:42,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833465069] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:42,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:42,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:42,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257540087] [2022-02-10 22:22:42,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:42,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:42,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:42,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:42,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:42,181 INFO L87 Difference]: Start difference. First operand 6645 states and 17877 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:42,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:42,400 INFO L93 Difference]: Finished difference Result 7469 states and 20016 transitions. [2022-02-10 22:22:42,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:22:42,401 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:42,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:42,411 INFO L225 Difference]: With dead ends: 7469 [2022-02-10 22:22:42,411 INFO L226 Difference]: Without dead ends: 7193 [2022-02-10 22:22:42,411 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2022-02-10 22:22:42,411 INFO L934 BasicCegarLoop]: 253 mSDtfsCounter, 152 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 2267 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 22:22:42,411 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 2267 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:42,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7193 states. [2022-02-10 22:22:42,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7193 to 6617. [2022-02-10 22:22:42,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6617 states, 6616 states have (on average 2.6916565900846434) internal successors, (17808), 6616 states have internal predecessors, (17808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:42,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6617 states to 6617 states and 17808 transitions. [2022-02-10 22:22:42,499 INFO L78 Accepts]: Start accepts. Automaton has 6617 states and 17808 transitions. Word has length 91 [2022-02-10 22:22:42,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:42,499 INFO L470 AbstractCegarLoop]: Abstraction has 6617 states and 17808 transitions. [2022-02-10 22:22:42,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:42,500 INFO L276 IsEmpty]: Start isEmpty. Operand 6617 states and 17808 transitions. [2022-02-10 22:22:42,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:42,507 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:42,508 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] [2022-02-10 22:22:42,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-10 22:22:42,508 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:42,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:42,508 INFO L85 PathProgramCache]: Analyzing trace with hash 85978932, now seen corresponding path program 26 times [2022-02-10 22:22:42,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:42,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663389947] [2022-02-10 22:22:42,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:42,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:42,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:42,598 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:42,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663389947] [2022-02-10 22:22:42,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663389947] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:42,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:42,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:42,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773506878] [2022-02-10 22:22:42,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:42,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:42,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:42,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:42,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:42,599 INFO L87 Difference]: Start difference. First operand 6617 states and 17808 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:42,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:42,894 INFO L93 Difference]: Finished difference Result 7694 states and 20617 transitions. [2022-02-10 22:22:42,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:22:42,894 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:42,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:42,904 INFO L225 Difference]: With dead ends: 7694 [2022-02-10 22:22:42,904 INFO L226 Difference]: Without dead ends: 7381 [2022-02-10 22:22:42,904 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2022-02-10 22:22:42,905 INFO L934 BasicCegarLoop]: 240 mSDtfsCounter, 202 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1768 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 22:22:42,905 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 1768 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:42,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7381 states. [2022-02-10 22:22:42,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7381 to 6625. [2022-02-10 22:22:42,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6625 states, 6624 states have (on average 2.691123188405797) internal successors, (17826), 6624 states have internal predecessors, (17826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:42,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6625 states to 6625 states and 17826 transitions. [2022-02-10 22:22:42,984 INFO L78 Accepts]: Start accepts. Automaton has 6625 states and 17826 transitions. Word has length 91 [2022-02-10 22:22:42,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:42,985 INFO L470 AbstractCegarLoop]: Abstraction has 6625 states and 17826 transitions. [2022-02-10 22:22:42,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:42,985 INFO L276 IsEmpty]: Start isEmpty. Operand 6625 states and 17826 transitions. [2022-02-10 22:22:42,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:42,992 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:42,992 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] [2022-02-10 22:22:42,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-10 22:22:42,992 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:42,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:42,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1082313236, now seen corresponding path program 27 times [2022-02-10 22:22:42,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:42,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229857644] [2022-02-10 22:22:42,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:42,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:43,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:43,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:43,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229857644] [2022-02-10 22:22:43,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229857644] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:43,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:43,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:43,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022555091] [2022-02-10 22:22:43,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:43,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:43,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:43,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:43,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:43,090 INFO L87 Difference]: Start difference. First operand 6625 states and 17826 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:43,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:43,347 INFO L93 Difference]: Finished difference Result 7666 states and 20548 transitions. [2022-02-10 22:22:43,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-10 22:22:43,347 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:43,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:43,358 INFO L225 Difference]: With dead ends: 7666 [2022-02-10 22:22:43,358 INFO L226 Difference]: Without dead ends: 7381 [2022-02-10 22:22:43,359 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=633, Unknown=0, NotChecked=0, Total=812 [2022-02-10 22:22:43,359 INFO L934 BasicCegarLoop]: 233 mSDtfsCounter, 169 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:43,359 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 2095 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:43,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7381 states. [2022-02-10 22:22:43,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7381 to 6629. [2022-02-10 22:22:43,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6628 states have (on average 2.69055522027761) internal successors, (17833), 6628 states have internal predecessors, (17833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:43,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 17833 transitions. [2022-02-10 22:22:43,476 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 17833 transitions. Word has length 91 [2022-02-10 22:22:43,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:43,476 INFO L470 AbstractCegarLoop]: Abstraction has 6629 states and 17833 transitions. [2022-02-10 22:22:43,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:43,477 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 17833 transitions. [2022-02-10 22:22:43,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:43,486 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:43,487 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:43,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-10 22:22:43,487 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:43,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:43,487 INFO L85 PathProgramCache]: Analyzing trace with hash 161648858, now seen corresponding path program 28 times [2022-02-10 22:22:43,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:43,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304259847] [2022-02-10 22:22:43,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:43,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:43,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:43,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304259847] [2022-02-10 22:22:43,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304259847] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:43,570 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:43,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:43,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956235097] [2022-02-10 22:22:43,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:43,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:43,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:43,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:43,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:43,571 INFO L87 Difference]: Start difference. First operand 6629 states and 17833 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:43,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:43,832 INFO L93 Difference]: Finished difference Result 7586 states and 20336 transitions. [2022-02-10 22:22:43,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:43,832 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:43,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:43,843 INFO L225 Difference]: With dead ends: 7586 [2022-02-10 22:22:43,843 INFO L226 Difference]: Without dead ends: 7329 [2022-02-10 22:22:43,844 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:43,847 INFO L934 BasicCegarLoop]: 228 mSDtfsCounter, 128 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1902 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 22:22:43,847 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1902 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:43,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2022-02-10 22:22:43,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 6633. [2022-02-10 22:22:43,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.689987937273824) internal successors, (17840), 6632 states have internal predecessors, (17840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:43,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17840 transitions. [2022-02-10 22:22:43,928 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17840 transitions. Word has length 91 [2022-02-10 22:22:43,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:43,928 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17840 transitions. [2022-02-10 22:22:43,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:43,928 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17840 transitions. [2022-02-10 22:22:43,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:43,935 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:43,935 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:43,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-10 22:22:43,936 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:43,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:43,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1654470292, now seen corresponding path program 29 times [2022-02-10 22:22:43,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:43,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515523423] [2022-02-10 22:22:43,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:43,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:44,024 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 22:22:44,024 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:44,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515523423] [2022-02-10 22:22:44,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515523423] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:44,024 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:44,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:44,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822963269] [2022-02-10 22:22:44,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:44,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:44,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:44,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:44,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:44,025 INFO L87 Difference]: Start difference. First operand 6633 states and 17840 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:44,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:44,257 INFO L93 Difference]: Finished difference Result 7549 states and 20232 transitions. [2022-02-10 22:22:44,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:44,258 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:44,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:44,268 INFO L225 Difference]: With dead ends: 7549 [2022-02-10 22:22:44,268 INFO L226 Difference]: Without dead ends: 7277 [2022-02-10 22:22:44,268 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2022-02-10 22:22:44,269 INFO L934 BasicCegarLoop]: 227 mSDtfsCounter, 127 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1903 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 22:22:44,269 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 1903 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:44,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7277 states. [2022-02-10 22:22:44,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7277 to 6621. [2022-02-10 22:22:44,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6621 states, 6620 states have (on average 2.6910876132930515) internal successors, (17815), 6620 states have internal predecessors, (17815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:44,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6621 states to 6621 states and 17815 transitions. [2022-02-10 22:22:44,352 INFO L78 Accepts]: Start accepts. Automaton has 6621 states and 17815 transitions. Word has length 91 [2022-02-10 22:22:44,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:44,353 INFO L470 AbstractCegarLoop]: Abstraction has 6621 states and 17815 transitions. [2022-02-10 22:22:44,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:44,353 INFO L276 IsEmpty]: Start isEmpty. Operand 6621 states and 17815 transitions. [2022-02-10 22:22:44,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:44,361 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:44,361 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] [2022-02-10 22:22:44,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-10 22:22:44,361 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:44,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:44,361 INFO L85 PathProgramCache]: Analyzing trace with hash 765585018, now seen corresponding path program 30 times [2022-02-10 22:22:44,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:44,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850118630] [2022-02-10 22:22:44,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:44,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:44,433 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 22:22:44,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:44,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850118630] [2022-02-10 22:22:44,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850118630] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:44,433 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:44,433 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:44,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691957360] [2022-02-10 22:22:44,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:44,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:44,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:44,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:44,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:44,434 INFO L87 Difference]: Start difference. First operand 6621 states and 17815 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:44,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:44,685 INFO L93 Difference]: Finished difference Result 7614 states and 20405 transitions. [2022-02-10 22:22:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-10 22:22:44,685 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:44,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:44,697 INFO L225 Difference]: With dead ends: 7614 [2022-02-10 22:22:44,697 INFO L226 Difference]: Without dead ends: 7329 [2022-02-10 22:22:44,697 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:22:44,698 INFO L934 BasicCegarLoop]: 231 mSDtfsCounter, 163 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 2081 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 22:22:44,698 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 2081 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:44,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2022-02-10 22:22:44,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 6629. [2022-02-10 22:22:44,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6628 states have (on average 2.69055522027761) internal successors, (17833), 6628 states have internal predecessors, (17833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:44,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 17833 transitions. [2022-02-10 22:22:44,793 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 17833 transitions. Word has length 91 [2022-02-10 22:22:44,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:44,793 INFO L470 AbstractCegarLoop]: Abstraction has 6629 states and 17833 transitions. [2022-02-10 22:22:44,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:44,793 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 17833 transitions. [2022-02-10 22:22:44,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:44,800 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:44,800 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] [2022-02-10 22:22:44,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-10 22:22:44,801 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:44,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:44,801 INFO L85 PathProgramCache]: Analyzing trace with hash 2009547112, now seen corresponding path program 31 times [2022-02-10 22:22:44,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:44,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024492441] [2022-02-10 22:22:44,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:44,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:44,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:44,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:44,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024492441] [2022-02-10 22:22:44,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024492441] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:44,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:44,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:44,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132013690] [2022-02-10 22:22:44,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:44,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:44,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:44,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:44,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:44,893 INFO L87 Difference]: Start difference. First operand 6629 states and 17833 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:45,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:45,097 INFO L93 Difference]: Finished difference Result 7562 states and 20270 transitions. [2022-02-10 22:22:45,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:22:45,098 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:45,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:45,110 INFO L225 Difference]: With dead ends: 7562 [2022-02-10 22:22:45,110 INFO L226 Difference]: Without dead ends: 7305 [2022-02-10 22:22:45,110 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:45,110 INFO L934 BasicCegarLoop]: 224 mSDtfsCounter, 138 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:45,110 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 1351 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:45,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7305 states. [2022-02-10 22:22:45,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7305 to 6633. [2022-02-10 22:22:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.689987937273824) internal successors, (17840), 6632 states have internal predecessors, (17840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:45,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17840 transitions. [2022-02-10 22:22:45,204 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17840 transitions. Word has length 91 [2022-02-10 22:22:45,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:45,205 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17840 transitions. [2022-02-10 22:22:45,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:45,205 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17840 transitions. [2022-02-10 22:22:45,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:45,212 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:45,212 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:45,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-10 22:22:45,212 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:45,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:45,213 INFO L85 PathProgramCache]: Analyzing trace with hash -792598750, now seen corresponding path program 32 times [2022-02-10 22:22:45,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:45,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261000435] [2022-02-10 22:22:45,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:45,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:45,295 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 22:22:45,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:45,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261000435] [2022-02-10 22:22:45,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261000435] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:45,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:45,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:45,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047257908] [2022-02-10 22:22:45,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:45,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:45,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:45,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:45,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:45,297 INFO L87 Difference]: Start difference. First operand 6633 states and 17840 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:45,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:45,519 INFO L93 Difference]: Finished difference Result 7533 states and 20188 transitions. [2022-02-10 22:22:45,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 22:22:45,519 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:45,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:45,530 INFO L225 Difference]: With dead ends: 7533 [2022-02-10 22:22:45,530 INFO L226 Difference]: Without dead ends: 7265 [2022-02-10 22:22:45,530 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2022-02-10 22:22:45,530 INFO L934 BasicCegarLoop]: 226 mSDtfsCounter, 124 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:45,530 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 1514 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:45,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2022-02-10 22:22:45,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 6625. [2022-02-10 22:22:45,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6625 states, 6624 states have (on average 2.6905193236714977) internal successors, (17822), 6624 states have internal predecessors, (17822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:45,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6625 states to 6625 states and 17822 transitions. [2022-02-10 22:22:45,616 INFO L78 Accepts]: Start accepts. Automaton has 6625 states and 17822 transitions. Word has length 91 [2022-02-10 22:22:45,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:45,616 INFO L470 AbstractCegarLoop]: Abstraction has 6625 states and 17822 transitions. [2022-02-10 22:22:45,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:45,616 INFO L276 IsEmpty]: Start isEmpty. Operand 6625 states and 17822 transitions. [2022-02-10 22:22:45,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:45,624 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:45,624 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] [2022-02-10 22:22:45,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-10 22:22:45,624 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:45,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:45,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1784917320, now seen corresponding path program 33 times [2022-02-10 22:22:45,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:45,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017165352] [2022-02-10 22:22:45,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:45,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:45,701 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 22:22:45,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:45,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017165352] [2022-02-10 22:22:45,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017165352] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:45,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:45,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:45,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010173258] [2022-02-10 22:22:45,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:45,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:45,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:45,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:45,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:45,702 INFO L87 Difference]: Start difference. First operand 6625 states and 17822 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:45,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:45,989 INFO L93 Difference]: Finished difference Result 7601 states and 20354 transitions. [2022-02-10 22:22:45,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-10 22:22:45,990 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:45,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:46,002 INFO L225 Difference]: With dead ends: 7601 [2022-02-10 22:22:46,002 INFO L226 Difference]: Without dead ends: 7310 [2022-02-10 22:22:46,003 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=599, Unknown=0, NotChecked=0, Total=812 [2022-02-10 22:22:46,003 INFO L934 BasicCegarLoop]: 226 mSDtfsCounter, 173 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1843 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 22:22:46,003 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 1843 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:46,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7310 states. [2022-02-10 22:22:46,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7310 to 6629. [2022-02-10 22:22:46,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6628 states have (on average 2.68995171997586) internal successors, (17829), 6628 states have internal predecessors, (17829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:46,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 17829 transitions. [2022-02-10 22:22:46,110 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 17829 transitions. Word has length 91 [2022-02-10 22:22:46,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:46,110 INFO L470 AbstractCegarLoop]: Abstraction has 6629 states and 17829 transitions. [2022-02-10 22:22:46,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:46,110 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 17829 transitions. [2022-02-10 22:22:46,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:46,118 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:46,118 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:46,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-10 22:22:46,118 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:46,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:46,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2091868322, now seen corresponding path program 34 times [2022-02-10 22:22:46,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:46,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525587202] [2022-02-10 22:22:46,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:46,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:46,209 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 22:22:46,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:46,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525587202] [2022-02-10 22:22:46,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525587202] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:46,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:46,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:46,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776197071] [2022-02-10 22:22:46,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:46,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:46,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:46,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:46,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:46,210 INFO L87 Difference]: Start difference. First operand 6629 states and 17829 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:46,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:46,439 INFO L93 Difference]: Finished difference Result 7522 states and 20156 transitions. [2022-02-10 22:22:46,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:22:46,440 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:46,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:46,451 INFO L225 Difference]: With dead ends: 7522 [2022-02-10 22:22:46,452 INFO L226 Difference]: Without dead ends: 7265 [2022-02-10 22:22:46,452 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:22:46,452 INFO L934 BasicCegarLoop]: 221 mSDtfsCounter, 135 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:46,452 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 1720 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:46,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2022-02-10 22:22:46,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 6633. [2022-02-10 22:22:46,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.6893848009650183) internal successors, (17836), 6632 states have internal predecessors, (17836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:46,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17836 transitions. [2022-02-10 22:22:46,555 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17836 transitions. Word has length 91 [2022-02-10 22:22:46,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:46,556 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17836 transitions. [2022-02-10 22:22:46,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:46,556 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17836 transitions. [2022-02-10 22:22:46,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-10 22:22:46,564 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:46,564 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:46,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-10 22:22:46,564 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:46,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:46,564 INFO L85 PathProgramCache]: Analyzing trace with hash -710277540, now seen corresponding path program 35 times [2022-02-10 22:22:46,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:46,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174025774] [2022-02-10 22:22:46,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:46,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:46,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:46,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:46,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174025774] [2022-02-10 22:22:46,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174025774] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:46,649 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:46,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-10 22:22:46,649 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320778137] [2022-02-10 22:22:46,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:46,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:46,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:46,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:46,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:46,650 INFO L87 Difference]: Start difference. First operand 6633 states and 17836 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:46,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:46,929 INFO L93 Difference]: Finished difference Result 7469 states and 20008 transitions. [2022-02-10 22:22:46,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-10 22:22:46,929 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-02-10 22:22:46,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:46,938 INFO L225 Difference]: With dead ends: 7469 [2022-02-10 22:22:46,938 INFO L226 Difference]: Without dead ends: 7185 [2022-02-10 22:22:46,939 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=582, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:22:46,939 INFO L934 BasicCegarLoop]: 215 mSDtfsCounter, 145 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:46,939 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 1679 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:46,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7185 states. [2022-02-10 22:22:47,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7185 to 6597. [2022-02-10 22:22:47,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6597 states, 6596 states have (on average 2.6908732565191027) internal successors, (17749), 6596 states have internal predecessors, (17749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:47,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6597 states to 6597 states and 17749 transitions. [2022-02-10 22:22:47,026 INFO L78 Accepts]: Start accepts. Automaton has 6597 states and 17749 transitions. Word has length 91 [2022-02-10 22:22:47,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:47,026 INFO L470 AbstractCegarLoop]: Abstraction has 6597 states and 17749 transitions. [2022-02-10 22:22:47,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:47,026 INFO L276 IsEmpty]: Start isEmpty. Operand 6597 states and 17749 transitions. [2022-02-10 22:22:47,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:22:47,034 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:47,034 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, 1, 1] [2022-02-10 22:22:47,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-10 22:22:47,034 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:47,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:47,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1361468159, now seen corresponding path program 1 times [2022-02-10 22:22:47,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:47,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812447003] [2022-02-10 22:22:47,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:47,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:47,328 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 22:22:47,328 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:47,328 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812447003] [2022-02-10 22:22:47,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812447003] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:47,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:47,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:22:47,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863960272] [2022-02-10 22:22:47,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:47,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:22:47,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:47,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:22:47,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:22:47,329 INFO L87 Difference]: Start difference. First operand 6597 states and 17749 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:49,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:49,286 INFO L93 Difference]: Finished difference Result 15003 states and 39315 transitions. [2022-02-10 22:22:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:22:49,286 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:22:49,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:49,309 INFO L225 Difference]: With dead ends: 15003 [2022-02-10 22:22:49,310 INFO L226 Difference]: Without dead ends: 12791 [2022-02-10 22:22:49,310 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=721, Invalid=1829, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 22:22:49,310 INFO L934 BasicCegarLoop]: 461 mSDtfsCounter, 1521 mSDsluCounter, 5352 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 5644 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:49,310 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1521 Valid, 5644 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:22:49,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12791 states. [2022-02-10 22:22:49,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12791 to 6528. [2022-02-10 22:22:49,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6528 states, 6527 states have (on average 2.6948061896736633) internal successors, (17589), 6527 states have internal predecessors, (17589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:49,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6528 states to 6528 states and 17589 transitions. [2022-02-10 22:22:49,438 INFO L78 Accepts]: Start accepts. Automaton has 6528 states and 17589 transitions. Word has length 111 [2022-02-10 22:22:49,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:49,438 INFO L470 AbstractCegarLoop]: Abstraction has 6528 states and 17589 transitions. [2022-02-10 22:22:49,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:49,439 INFO L276 IsEmpty]: Start isEmpty. Operand 6528 states and 17589 transitions. [2022-02-10 22:22:49,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:22:49,446 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:49,446 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] [2022-02-10 22:22:49,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-10 22:22:49,447 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:49,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:49,447 INFO L85 PathProgramCache]: Analyzing trace with hash 608351549, now seen corresponding path program 2 times [2022-02-10 22:22:49,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:49,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90863606] [2022-02-10 22:22:49,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:49,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:49,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:49,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90863606] [2022-02-10 22:22:49,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90863606] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:49,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:49,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:22:49,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347544395] [2022-02-10 22:22:49,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:49,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:22:49,655 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:49,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:22:49,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:22:49,655 INFO L87 Difference]: Start difference. First operand 6528 states and 17589 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:50,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:50,727 INFO L93 Difference]: Finished difference Result 13797 states and 36387 transitions. [2022-02-10 22:22:50,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:22:50,727 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:22:50,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:50,750 INFO L225 Difference]: With dead ends: 13797 [2022-02-10 22:22:50,750 INFO L226 Difference]: Without dead ends: 12756 [2022-02-10 22:22:50,751 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=594, Invalid=1568, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:22:50,751 INFO L934 BasicCegarLoop]: 424 mSDtfsCounter, 930 mSDsluCounter, 5282 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 5552 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:50,751 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [930 Valid, 5552 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:22:50,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12756 states. [2022-02-10 22:22:50,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12756 to 6556. [2022-02-10 22:22:50,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6556 states, 6555 states have (on average 2.6938215102974827) internal successors, (17658), 6555 states have internal predecessors, (17658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:50,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6556 states to 6556 states and 17658 transitions. [2022-02-10 22:22:50,880 INFO L78 Accepts]: Start accepts. Automaton has 6556 states and 17658 transitions. Word has length 111 [2022-02-10 22:22:50,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:50,880 INFO L470 AbstractCegarLoop]: Abstraction has 6556 states and 17658 transitions. [2022-02-10 22:22:50,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:50,880 INFO L276 IsEmpty]: Start isEmpty. Operand 6556 states and 17658 transitions. [2022-02-10 22:22:50,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:22:50,888 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:50,888 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:50,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-10 22:22:50,888 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:50,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:50,888 INFO L85 PathProgramCache]: Analyzing trace with hash 322154749, now seen corresponding path program 3 times [2022-02-10 22:22:50,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:50,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557289222] [2022-02-10 22:22:50,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:50,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:51,114 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 22:22:51,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:51,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557289222] [2022-02-10 22:22:51,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557289222] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:51,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:51,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:22:51,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714209070] [2022-02-10 22:22:51,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:51,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:22:51,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:51,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:22:51,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:22:51,115 INFO L87 Difference]: Start difference. First operand 6556 states and 17658 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:52,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:52,321 INFO L93 Difference]: Finished difference Result 13722 states and 36196 transitions. [2022-02-10 22:22:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:22:52,321 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:22:52,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:52,344 INFO L225 Difference]: With dead ends: 13722 [2022-02-10 22:22:52,345 INFO L226 Difference]: Without dead ends: 12743 [2022-02-10 22:22:52,345 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:22:52,345 INFO L934 BasicCegarLoop]: 428 mSDtfsCounter, 948 mSDsluCounter, 5181 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 5476 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:52,345 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 5476 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:22:52,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12743 states. [2022-02-10 22:22:52,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12743 to 6580. [2022-02-10 22:22:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6580 states, 6579 states have (on average 2.692202462380301) internal successors, (17712), 6579 states have internal predecessors, (17712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:52,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6580 states to 6580 states and 17712 transitions. [2022-02-10 22:22:52,477 INFO L78 Accepts]: Start accepts. Automaton has 6580 states and 17712 transitions. Word has length 111 [2022-02-10 22:22:52,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:52,477 INFO L470 AbstractCegarLoop]: Abstraction has 6580 states and 17712 transitions. [2022-02-10 22:22:52,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:52,478 INFO L276 IsEmpty]: Start isEmpty. Operand 6580 states and 17712 transitions. [2022-02-10 22:22:52,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:22:52,485 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:52,485 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:52,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-10 22:22:52,485 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:52,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:52,486 INFO L85 PathProgramCache]: Analyzing trace with hash 93373265, now seen corresponding path program 4 times [2022-02-10 22:22:52,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:52,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852158361] [2022-02-10 22:22:52,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:52,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:52,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:52,704 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852158361] [2022-02-10 22:22:52,704 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852158361] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:52,704 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:52,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:22:52,704 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113033187] [2022-02-10 22:22:52,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:52,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:22:52,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:52,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:22:52,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:22:52,704 INFO L87 Difference]: Start difference. First operand 6580 states and 17712 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:53,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:53,838 INFO L93 Difference]: Finished difference Result 13164 states and 34762 transitions. [2022-02-10 22:22:53,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-10 22:22:53,839 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:22:53,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:53,858 INFO L225 Difference]: With dead ends: 13164 [2022-02-10 22:22:53,859 INFO L226 Difference]: Without dead ends: 12309 [2022-02-10 22:22:53,859 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=491, Invalid=1489, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:22:53,859 INFO L934 BasicCegarLoop]: 419 mSDtfsCounter, 809 mSDsluCounter, 5156 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 5453 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:53,859 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 5453 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:22:53,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12309 states. [2022-02-10 22:22:53,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12309 to 6692. [2022-02-10 22:22:53,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6692 states, 6691 states have (on average 2.685398296218801) internal successors, (17968), 6691 states have internal predecessors, (17968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:53,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6692 states to 6692 states and 17968 transitions. [2022-02-10 22:22:53,981 INFO L78 Accepts]: Start accepts. Automaton has 6692 states and 17968 transitions. Word has length 111 [2022-02-10 22:22:53,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:53,981 INFO L470 AbstractCegarLoop]: Abstraction has 6692 states and 17968 transitions. [2022-02-10 22:22:53,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:53,981 INFO L276 IsEmpty]: Start isEmpty. Operand 6692 states and 17968 transitions. [2022-02-10 22:22:53,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:22:53,989 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:53,989 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:53,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-10 22:22:53,989 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:53,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:53,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1462689799, now seen corresponding path program 5 times [2022-02-10 22:22:53,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:53,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461166424] [2022-02-10 22:22:53,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:53,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:54,220 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 22:22:54,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:54,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461166424] [2022-02-10 22:22:54,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461166424] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:54,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:54,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:22:54,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178956700] [2022-02-10 22:22:54,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:54,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:22:54,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:54,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:22:54,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:22:54,222 INFO L87 Difference]: Start difference. First operand 6692 states and 17968 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:55,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:55,256 INFO L93 Difference]: Finished difference Result 12730 states and 33604 transitions. [2022-02-10 22:22:55,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-10 22:22:55,256 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:22:55,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:55,274 INFO L225 Difference]: With dead ends: 12730 [2022-02-10 22:22:55,275 INFO L226 Difference]: Without dead ends: 12278 [2022-02-10 22:22:55,275 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=452, Invalid=1440, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:22:55,275 INFO L934 BasicCegarLoop]: 406 mSDtfsCounter, 758 mSDsluCounter, 4921 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 5213 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:55,275 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [758 Valid, 5213 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:22:55,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12278 states. [2022-02-10 22:22:55,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12278 to 6700. [2022-02-10 22:22:55,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6700 states, 6699 states have (on average 2.6848783400507537) internal successors, (17986), 6699 states have internal predecessors, (17986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:55,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6700 states to 6700 states and 17986 transitions. [2022-02-10 22:22:55,393 INFO L78 Accepts]: Start accepts. Automaton has 6700 states and 17986 transitions. Word has length 111 [2022-02-10 22:22:55,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:55,394 INFO L470 AbstractCegarLoop]: Abstraction has 6700 states and 17986 transitions. [2022-02-10 22:22:55,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:55,394 INFO L276 IsEmpty]: Start isEmpty. Operand 6700 states and 17986 transitions. [2022-02-10 22:22:55,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:22:55,401 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:55,401 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, 1, 1] [2022-02-10 22:22:55,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-02-10 22:22:55,402 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:55,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:55,402 INFO L85 PathProgramCache]: Analyzing trace with hash -873829385, now seen corresponding path program 6 times [2022-02-10 22:22:55,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:55,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558314775] [2022-02-10 22:22:55,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:55,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:55,614 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 22:22:55,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:55,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558314775] [2022-02-10 22:22:55,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558314775] 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 [18] imperfect sequences [] total 18 [2022-02-10 22:22:55,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609938810] [2022-02-10 22:22:55,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:55,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 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 18 interpolants. [2022-02-10 22:22:55,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:22:55,615 INFO L87 Difference]: Start difference. First operand 6700 states and 17986 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:56,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:56,633 INFO L93 Difference]: Finished difference Result 12492 states and 33057 transitions. [2022-02-10 22:22:56,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-10 22:22:56,633 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:22:56,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:56,652 INFO L225 Difference]: With dead ends: 12492 [2022-02-10 22:22:56,652 INFO L226 Difference]: Without dead ends: 12071 [2022-02-10 22:22:56,653 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=414, Invalid=1392, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 22:22:56,653 INFO L934 BasicCegarLoop]: 402 mSDtfsCounter, 640 mSDsluCounter, 4903 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 5198 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:56,653 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [640 Valid, 5198 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:22:56,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12071 states. [2022-02-10 22:22:56,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12071 to 6724. [2022-02-10 22:22:56,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6724 states, 6723 states have (on average 2.6833258961773017) internal successors, (18040), 6723 states have internal predecessors, (18040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:56,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6724 states to 6724 states and 18040 transitions. [2022-02-10 22:22:56,773 INFO L78 Accepts]: Start accepts. Automaton has 6724 states and 18040 transitions. Word has length 111 [2022-02-10 22:22:56,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:56,774 INFO L470 AbstractCegarLoop]: Abstraction has 6724 states and 18040 transitions. [2022-02-10 22:22:56,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:56,774 INFO L276 IsEmpty]: Start isEmpty. Operand 6724 states and 18040 transitions. [2022-02-10 22:22:56,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:22:56,783 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:56,783 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:56,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-02-10 22:22:56,783 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:56,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:56,783 INFO L85 PathProgramCache]: Analyzing trace with hash 957496509, now seen corresponding path program 7 times [2022-02-10 22:22:56,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:56,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138961378] [2022-02-10 22:22:56,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:56,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:57,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:57,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138961378] [2022-02-10 22:22:57,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138961378] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:57,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:57,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:22:57,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943754771] [2022-02-10 22:22:57,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:57,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:22:57,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:57,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:22:57,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:22:57,002 INFO L87 Difference]: Start difference. First operand 6724 states and 18040 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:57,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:57,965 INFO L93 Difference]: Finished difference Result 12337 states and 32650 transitions. [2022-02-10 22:22:57,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:22:57,965 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:22:57,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:57,982 INFO L225 Difference]: With dead ends: 12337 [2022-02-10 22:22:57,983 INFO L226 Difference]: Without dead ends: 12009 [2022-02-10 22:22:57,983 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=374, Invalid=1266, Unknown=0, NotChecked=0, Total=1640 [2022-02-10 22:22:57,983 INFO L934 BasicCegarLoop]: 398 mSDtfsCounter, 549 mSDsluCounter, 5064 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 5357 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:57,983 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [549 Valid, 5357 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:22:57,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12009 states. [2022-02-10 22:22:58,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12009 to 6732. [2022-02-10 22:22:58,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6732 states, 6731 states have (on average 2.6828108750557123) internal successors, (18058), 6731 states have internal predecessors, (18058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:58,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6732 states to 6732 states and 18058 transitions. [2022-02-10 22:22:58,099 INFO L78 Accepts]: Start accepts. Automaton has 6732 states and 18058 transitions. Word has length 111 [2022-02-10 22:22:58,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:58,099 INFO L470 AbstractCegarLoop]: Abstraction has 6732 states and 18058 transitions. [2022-02-10 22:22:58,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:58,099 INFO L276 IsEmpty]: Start isEmpty. Operand 6732 states and 18058 transitions. [2022-02-10 22:22:58,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:22:58,108 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:58,108 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, 1, 1] [2022-02-10 22:22:58,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-02-10 22:22:58,108 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:58,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:58,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1253099345, now seen corresponding path program 8 times [2022-02-10 22:22:58,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:58,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723668776] [2022-02-10 22:22:58,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:58,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:58,326 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 22:22:58,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:58,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723668776] [2022-02-10 22:22:58,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723668776] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:58,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:58,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:22:58,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316792614] [2022-02-10 22:22:58,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:58,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:22:58,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:58,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:22:58,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:22:58,327 INFO L87 Difference]: Start difference. First operand 6732 states and 18058 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:59,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:59,320 INFO L93 Difference]: Finished difference Result 12244 states and 32409 transitions. [2022-02-10 22:22:59,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:22:59,321 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:22:59,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:59,338 INFO L225 Difference]: With dead ends: 12244 [2022-02-10 22:22:59,338 INFO L226 Difference]: Without dead ends: 11947 [2022-02-10 22:22:59,339 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:22:59,339 INFO L934 BasicCegarLoop]: 395 mSDtfsCounter, 560 mSDsluCounter, 4787 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 5091 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:59,339 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [560 Valid, 5091 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:22:59,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11947 states. [2022-02-10 22:22:59,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11947 to 6740. [2022-02-10 22:22:59,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6740 states, 6739 states have (on average 2.6822970767176137) internal successors, (18076), 6739 states have internal predecessors, (18076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:59,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6740 states to 6740 states and 18076 transitions. [2022-02-10 22:22:59,463 INFO L78 Accepts]: Start accepts. Automaton has 6740 states and 18076 transitions. Word has length 111 [2022-02-10 22:22:59,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:59,463 INFO L470 AbstractCegarLoop]: Abstraction has 6740 states and 18076 transitions. [2022-02-10 22:22:59,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:59,464 INFO L276 IsEmpty]: Start isEmpty. Operand 6740 states and 18076 transitions. [2022-02-10 22:22:59,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:22:59,471 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:59,471 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, 1, 1] [2022-02-10 22:22:59,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-02-10 22:22:59,471 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:59,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:59,472 INFO L85 PathProgramCache]: Analyzing trace with hash 834917691, now seen corresponding path program 9 times [2022-02-10 22:22:59,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:59,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60565581] [2022-02-10 22:22:59,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:59,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:59,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:22:59,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:59,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60565581] [2022-02-10 22:22:59,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60565581] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:22:59,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:22:59,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:22:59,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451382240] [2022-02-10 22:22:59,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:22:59,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:22:59,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:59,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:22:59,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:22:59,682 INFO L87 Difference]: Start difference. First operand 6740 states and 18076 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:00,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:00,777 INFO L93 Difference]: Finished difference Result 12089 states and 32010 transitions. [2022-02-10 22:23:00,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:23:00,778 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:00,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:00,798 INFO L225 Difference]: With dead ends: 12089 [2022-02-10 22:23:00,798 INFO L226 Difference]: Without dead ends: 11798 [2022-02-10 22:23:00,798 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=404, Invalid=1078, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:23:00,798 INFO L934 BasicCegarLoop]: 390 mSDtfsCounter, 527 mSDsluCounter, 4697 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 5017 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:00,799 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [527 Valid, 5017 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:23:00,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11798 states. [2022-02-10 22:23:00,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11798 to 6748. [2022-02-10 22:23:00,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6748 states, 6747 states have (on average 2.681191640729213) internal successors, (18090), 6747 states have internal predecessors, (18090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:00,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6748 states to 6748 states and 18090 transitions. [2022-02-10 22:23:00,924 INFO L78 Accepts]: Start accepts. Automaton has 6748 states and 18090 transitions. Word has length 111 [2022-02-10 22:23:00,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:00,924 INFO L470 AbstractCegarLoop]: Abstraction has 6748 states and 18090 transitions. [2022-02-10 22:23:00,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:00,925 INFO L276 IsEmpty]: Start isEmpty. Operand 6748 states and 18090 transitions. [2022-02-10 22:23:00,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:00,935 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:00,935 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:00,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-02-10 22:23:00,935 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:00,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:00,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1967228171, now seen corresponding path program 10 times [2022-02-10 22:23:00,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:00,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97796588] [2022-02-10 22:23:00,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:00,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:01,168 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 22:23:01,168 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:01,168 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97796588] [2022-02-10 22:23:01,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97796588] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:01,168 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:01,168 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:01,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548500604] [2022-02-10 22:23:01,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:01,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:01,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:01,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:01,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:01,171 INFO L87 Difference]: Start difference. First operand 6748 states and 18090 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:02,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:02,111 INFO L93 Difference]: Finished difference Result 12064 states and 31935 transitions. [2022-02-10 22:23:02,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-10 22:23:02,112 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:02,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:02,132 INFO L225 Difference]: With dead ends: 12064 [2022-02-10 22:23:02,133 INFO L226 Difference]: Without dead ends: 11638 [2022-02-10 22:23:02,133 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=318, Invalid=1014, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:23:02,133 INFO L934 BasicCegarLoop]: 392 mSDtfsCounter, 513 mSDsluCounter, 4783 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 5095 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:02,133 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [513 Valid, 5095 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:23:02,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11638 states. [2022-02-10 22:23:02,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11638 to 6588. [2022-02-10 22:23:02,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6588 states, 6587 states have (on average 2.6910581448307274) internal successors, (17726), 6587 states have internal predecessors, (17726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:02,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6588 states to 6588 states and 17726 transitions. [2022-02-10 22:23:02,265 INFO L78 Accepts]: Start accepts. Automaton has 6588 states and 17726 transitions. Word has length 111 [2022-02-10 22:23:02,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:02,266 INFO L470 AbstractCegarLoop]: Abstraction has 6588 states and 17726 transitions. [2022-02-10 22:23:02,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:02,266 INFO L276 IsEmpty]: Start isEmpty. Operand 6588 states and 17726 transitions. [2022-02-10 22:23:02,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:02,275 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:02,275 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:02,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-02-10 22:23:02,275 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:02,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:02,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1767486993, now seen corresponding path program 11 times [2022-02-10 22:23:02,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:02,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558173805] [2022-02-10 22:23:02,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:02,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:02,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:02,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558173805] [2022-02-10 22:23:02,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558173805] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:02,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:02,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:02,499 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683421274] [2022-02-10 22:23:02,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:02,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:02,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:02,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:02,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:02,499 INFO L87 Difference]: Start difference. First operand 6588 states and 17726 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:03,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:03,677 INFO L93 Difference]: Finished difference Result 12524 states and 33151 transitions. [2022-02-10 22:23:03,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:23:03,677 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:03,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:03,698 INFO L225 Difference]: With dead ends: 12524 [2022-02-10 22:23:03,699 INFO L226 Difference]: Without dead ends: 11590 [2022-02-10 22:23:03,699 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=533, Invalid=1537, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:23:03,699 INFO L934 BasicCegarLoop]: 439 mSDtfsCounter, 751 mSDsluCounter, 5460 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 5760 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:03,700 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 5760 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:23:03,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11590 states. [2022-02-10 22:23:03,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11590 to 6540. [2022-02-10 22:23:03,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6540 states, 6539 states have (on average 2.6936840495488608) internal successors, (17614), 6539 states have internal predecessors, (17614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:03,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6540 states to 6540 states and 17614 transitions. [2022-02-10 22:23:03,822 INFO L78 Accepts]: Start accepts. Automaton has 6540 states and 17614 transitions. Word has length 111 [2022-02-10 22:23:03,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:03,822 INFO L470 AbstractCegarLoop]: Abstraction has 6540 states and 17614 transitions. [2022-02-10 22:23:03,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:03,823 INFO L276 IsEmpty]: Start isEmpty. Operand 6540 states and 17614 transitions. [2022-02-10 22:23:03,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:03,831 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:03,831 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, 1, 1] [2022-02-10 22:23:03,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-02-10 22:23:03,831 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:03,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:03,832 INFO L85 PathProgramCache]: Analyzing trace with hash 486197149, now seen corresponding path program 12 times [2022-02-10 22:23:03,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:03,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070841909] [2022-02-10 22:23:03,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:03,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:04,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:04,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:04,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070841909] [2022-02-10 22:23:04,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070841909] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:04,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:04,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:04,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107480086] [2022-02-10 22:23:04,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:04,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:04,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:04,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:04,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:04,055 INFO L87 Difference]: Start difference. First operand 6540 states and 17614 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:05,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:05,661 INFO L93 Difference]: Finished difference Result 12788 states and 33837 transitions. [2022-02-10 22:23:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:23:05,661 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:05,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:05,680 INFO L225 Difference]: With dead ends: 12788 [2022-02-10 22:23:05,680 INFO L226 Difference]: Without dead ends: 11652 [2022-02-10 22:23:05,681 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=648, Invalid=1704, Unknown=0, NotChecked=0, Total=2352 [2022-02-10 22:23:05,681 INFO L934 BasicCegarLoop]: 455 mSDtfsCounter, 1033 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 5730 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:05,681 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1033 Valid, 5730 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:23:05,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11652 states. [2022-02-10 22:23:05,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11652 to 6504. [2022-02-10 22:23:05,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6504 states, 6503 states have (on average 2.6944487159772414) internal successors, (17522), 6503 states have internal predecessors, (17522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:05,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6504 states to 6504 states and 17522 transitions. [2022-02-10 22:23:05,821 INFO L78 Accepts]: Start accepts. Automaton has 6504 states and 17522 transitions. Word has length 111 [2022-02-10 22:23:05,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:05,821 INFO L470 AbstractCegarLoop]: Abstraction has 6504 states and 17522 transitions. [2022-02-10 22:23:05,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:05,821 INFO L276 IsEmpty]: Start isEmpty. Operand 6504 states and 17522 transitions. [2022-02-10 22:23:05,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:05,831 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:05,831 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, 1, 1] [2022-02-10 22:23:05,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-02-10 22:23:05,831 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:05,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:05,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1203312979, now seen corresponding path program 1 times [2022-02-10 22:23:05,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:05,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101626654] [2022-02-10 22:23:05,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:05,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:05,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:05,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:05,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101626654] [2022-02-10 22:23:05,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101626654] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:05,934 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:05,934 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:23:05,934 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257425868] [2022-02-10 22:23:05,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:05,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:23:05,935 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:05,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:23:05,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:23:05,935 INFO L87 Difference]: Start difference. First operand 6504 states and 17522 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:06,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:06,020 INFO L93 Difference]: Finished difference Result 8151 states and 21453 transitions. [2022-02-10 22:23:06,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:23:06,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:06,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:06,036 INFO L225 Difference]: With dead ends: 8151 [2022-02-10 22:23:06,036 INFO L226 Difference]: Without dead ends: 8151 [2022-02-10 22:23:06,036 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:23:06,036 INFO L934 BasicCegarLoop]: 236 mSDtfsCounter, 329 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:06,036 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 385 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:06,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8151 states. [2022-02-10 22:23:06,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8151 to 6464. [2022-02-10 22:23:06,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6464 states, 6463 states have (on average 2.6527928206715146) internal successors, (17145), 6463 states have internal predecessors, (17145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:06,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6464 states to 6464 states and 17145 transitions. [2022-02-10 22:23:06,156 INFO L78 Accepts]: Start accepts. Automaton has 6464 states and 17145 transitions. Word has length 111 [2022-02-10 22:23:06,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:06,156 INFO L470 AbstractCegarLoop]: Abstraction has 6464 states and 17145 transitions. [2022-02-10 22:23:06,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:06,156 INFO L276 IsEmpty]: Start isEmpty. Operand 6464 states and 17145 transitions. [2022-02-10 22:23:06,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:06,165 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:06,165 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:06,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-02-10 22:23:06,165 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:06,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:06,166 INFO L85 PathProgramCache]: Analyzing trace with hash 698052543, now seen corresponding path program 2 times [2022-02-10 22:23:06,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:06,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474276218] [2022-02-10 22:23:06,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:06,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:06,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:06,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:06,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474276218] [2022-02-10 22:23:06,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474276218] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:06,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:06,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:23:06,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106474848] [2022-02-10 22:23:06,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:06,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:23:06,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:06,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:23:06,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:23:06,229 INFO L87 Difference]: Start difference. First operand 6464 states and 17145 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:06,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:06,391 INFO L93 Difference]: Finished difference Result 7764 states and 20288 transitions. [2022-02-10 22:23:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:23:06,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:06,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:06,408 INFO L225 Difference]: With dead ends: 7764 [2022-02-10 22:23:06,408 INFO L226 Difference]: Without dead ends: 7459 [2022-02-10 22:23:06,408 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:23:06,408 INFO L934 BasicCegarLoop]: 212 mSDtfsCounter, 259 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:06,408 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 548 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:23:06,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7459 states. [2022-02-10 22:23:06,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7459 to 6006. [2022-02-10 22:23:06,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6006 states, 6005 states have (on average 2.6432972522897584) internal successors, (15873), 6005 states have internal predecessors, (15873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:06,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6006 states to 6006 states and 15873 transitions. [2022-02-10 22:23:06,529 INFO L78 Accepts]: Start accepts. Automaton has 6006 states and 15873 transitions. Word has length 111 [2022-02-10 22:23:06,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:06,530 INFO L470 AbstractCegarLoop]: Abstraction has 6006 states and 15873 transitions. [2022-02-10 22:23:06,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:06,530 INFO L276 IsEmpty]: Start isEmpty. Operand 6006 states and 15873 transitions. [2022-02-10 22:23:06,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:06,537 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:06,537 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, 1, 1] [2022-02-10 22:23:06,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-02-10 22:23:06,537 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:06,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:06,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1745312769, now seen corresponding path program 3 times [2022-02-10 22:23:06,538 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:06,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040344036] [2022-02-10 22:23:06,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:06,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:06,593 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 22:23:06,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:06,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040344036] [2022-02-10 22:23:06,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040344036] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:06,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:06,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:23:06,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045502996] [2022-02-10 22:23:06,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:06,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:23:06,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:06,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:23:06,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:23:06,595 INFO L87 Difference]: Start difference. First operand 6006 states and 15873 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:06,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:06,710 INFO L93 Difference]: Finished difference Result 8564 states and 22287 transitions. [2022-02-10 22:23:06,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:23:06,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:06,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:06,723 INFO L225 Difference]: With dead ends: 8564 [2022-02-10 22:23:06,723 INFO L226 Difference]: Without dead ends: 8456 [2022-02-10 22:23:06,723 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:23:06,724 INFO L934 BasicCegarLoop]: 261 mSDtfsCounter, 182 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:06,724 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 770 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:23:06,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8456 states. [2022-02-10 22:23:06,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8456 to 5859. [2022-02-10 22:23:06,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.6410037555479686) internal successors, (15471), 5858 states have internal predecessors, (15471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:06,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15471 transitions. [2022-02-10 22:23:06,826 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15471 transitions. Word has length 111 [2022-02-10 22:23:06,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:06,826 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15471 transitions. [2022-02-10 22:23:06,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:06,826 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15471 transitions. [2022-02-10 22:23:06,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:06,833 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:06,833 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:06,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-02-10 22:23:06,834 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:06,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:06,834 INFO L85 PathProgramCache]: Analyzing trace with hash -390843391, now seen corresponding path program 13 times [2022-02-10 22:23:06,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:06,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516399989] [2022-02-10 22:23:06,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:06,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:07,047 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 22:23:07,047 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:07,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516399989] [2022-02-10 22:23:07,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516399989] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:07,047 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:07,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:07,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394813552] [2022-02-10 22:23:07,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:07,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:07,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:07,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:07,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:07,048 INFO L87 Difference]: Start difference. First operand 5859 states and 15471 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:08,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:08,328 INFO L93 Difference]: Finished difference Result 9804 states and 25479 transitions. [2022-02-10 22:23:08,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:23:08,329 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:08,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:08,343 INFO L225 Difference]: With dead ends: 9804 [2022-02-10 22:23:08,343 INFO L226 Difference]: Without dead ends: 8763 [2022-02-10 22:23:08,344 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=716, Invalid=1834, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 22:23:08,344 INFO L934 BasicCegarLoop]: 355 mSDtfsCounter, 1004 mSDsluCounter, 4315 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 4519 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:08,344 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1004 Valid, 4519 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:08,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8763 states. [2022-02-10 22:23:08,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8763 to 5871. [2022-02-10 22:23:08,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5871 states, 5870 states have (on average 2.6398637137989778) internal successors, (15496), 5870 states have internal predecessors, (15496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:08,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5871 states to 5871 states and 15496 transitions. [2022-02-10 22:23:08,453 INFO L78 Accepts]: Start accepts. Automaton has 5871 states and 15496 transitions. Word has length 111 [2022-02-10 22:23:08,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:08,453 INFO L470 AbstractCegarLoop]: Abstraction has 5871 states and 15496 transitions. [2022-02-10 22:23:08,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:08,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5871 states and 15496 transitions. [2022-02-10 22:23:08,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:08,460 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:08,460 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:08,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-02-10 22:23:08,461 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:08,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:08,461 INFO L85 PathProgramCache]: Analyzing trace with hash -677040191, now seen corresponding path program 14 times [2022-02-10 22:23:08,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:08,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708144475] [2022-02-10 22:23:08,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:08,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:08,710 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 22:23:08,710 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:08,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708144475] [2022-02-10 22:23:08,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708144475] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:08,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:08,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:08,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239682506] [2022-02-10 22:23:08,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:08,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:08,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:08,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:08,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:08,711 INFO L87 Difference]: Start difference. First operand 5871 states and 15496 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:09,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:09,980 INFO L93 Difference]: Finished difference Result 9649 states and 25076 transitions. [2022-02-10 22:23:09,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:23:09,980 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:09,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:09,995 INFO L225 Difference]: With dead ends: 9649 [2022-02-10 22:23:09,995 INFO L226 Difference]: Without dead ends: 8670 [2022-02-10 22:23:09,996 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=665, Invalid=1785, Unknown=0, NotChecked=0, Total=2450 [2022-02-10 22:23:09,996 INFO L934 BasicCegarLoop]: 347 mSDtfsCounter, 1008 mSDsluCounter, 4103 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 4318 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:09,996 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1008 Valid, 4318 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:10,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8670 states. [2022-02-10 22:23:10,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8670 to 5883. [2022-02-10 22:23:10,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 5882 states have (on average 2.638048282896974) internal successors, (15517), 5882 states have internal predecessors, (15517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:10,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 15517 transitions. [2022-02-10 22:23:10,109 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 15517 transitions. Word has length 111 [2022-02-10 22:23:10,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:10,109 INFO L470 AbstractCegarLoop]: Abstraction has 5883 states and 15517 transitions. [2022-02-10 22:23:10,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:10,110 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 15517 transitions. [2022-02-10 22:23:10,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:10,116 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:10,116 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:10,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-02-10 22:23:10,116 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:10,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:10,117 INFO L85 PathProgramCache]: Analyzing trace with hash -905821675, now seen corresponding path program 15 times [2022-02-10 22:23:10,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:10,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907129561] [2022-02-10 22:23:10,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:10,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:10,361 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 22:23:10,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:10,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907129561] [2022-02-10 22:23:10,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907129561] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:10,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:10,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:10,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936280939] [2022-02-10 22:23:10,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:10,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:10,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:10,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:10,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:10,363 INFO L87 Difference]: Start difference. First operand 5883 states and 15517 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:11,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:11,534 INFO L93 Difference]: Finished difference Result 9091 states and 23642 transitions. [2022-02-10 22:23:11,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:23:11,534 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:11,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:11,546 INFO L225 Difference]: With dead ends: 9091 [2022-02-10 22:23:11,546 INFO L226 Difference]: Without dead ends: 8236 [2022-02-10 22:23:11,547 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=574, Invalid=1682, Unknown=0, NotChecked=0, Total=2256 [2022-02-10 22:23:11,547 INFO L934 BasicCegarLoop]: 324 mSDtfsCounter, 844 mSDsluCounter, 4034 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 4235 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:11,547 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [844 Valid, 4235 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:11,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8236 states. [2022-02-10 22:23:11,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8236 to 5939. [2022-02-10 22:23:11,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5939 states, 5938 states have (on average 2.630346918154261) internal successors, (15619), 5938 states have internal predecessors, (15619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:11,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5939 states to 5939 states and 15619 transitions. [2022-02-10 22:23:11,626 INFO L78 Accepts]: Start accepts. Automaton has 5939 states and 15619 transitions. Word has length 111 [2022-02-10 22:23:11,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:11,626 INFO L470 AbstractCegarLoop]: Abstraction has 5939 states and 15619 transitions. [2022-02-10 22:23:11,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:11,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5939 states and 15619 transitions. [2022-02-10 22:23:11,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:11,635 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:11,635 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:11,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-02-10 22:23:11,635 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:11,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:11,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1833082557, now seen corresponding path program 16 times [2022-02-10 22:23:11,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:11,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429259888] [2022-02-10 22:23:11,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:11,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:11,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:11,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:11,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429259888] [2022-02-10 22:23:11,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429259888] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:11,835 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:11,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:11,835 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066251349] [2022-02-10 22:23:11,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:11,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:11,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:11,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:11,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:11,836 INFO L87 Difference]: Start difference. First operand 5939 states and 15619 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:12,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:12,916 INFO L93 Difference]: Finished difference Result 8657 states and 22484 transitions. [2022-02-10 22:23:12,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:23:12,916 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:12,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:12,928 INFO L225 Difference]: With dead ends: 8657 [2022-02-10 22:23:12,928 INFO L226 Difference]: Without dead ends: 8205 [2022-02-10 22:23:12,929 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:23:12,929 INFO L934 BasicCegarLoop]: 316 mSDtfsCounter, 732 mSDsluCounter, 4189 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 4379 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:12,929 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 4379 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:12,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8205 states. [2022-02-10 22:23:12,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8205 to 5943. [2022-02-10 22:23:13,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5943 states, 5942 states have (on average 2.629754291484349) internal successors, (15626), 5942 states have internal predecessors, (15626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:13,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5943 states to 5943 states and 15626 transitions. [2022-02-10 22:23:13,013 INFO L78 Accepts]: Start accepts. Automaton has 5943 states and 15626 transitions. Word has length 111 [2022-02-10 22:23:13,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:13,013 INFO L470 AbstractCegarLoop]: Abstraction has 5943 states and 15626 transitions. [2022-02-10 22:23:13,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:13,013 INFO L276 IsEmpty]: Start isEmpty. Operand 5943 states and 15626 transitions. [2022-02-10 22:23:13,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:13,020 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:13,020 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:13,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-02-10 22:23:13,020 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:13,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:13,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1873024325, now seen corresponding path program 17 times [2022-02-10 22:23:13,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:13,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047250796] [2022-02-10 22:23:13,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:13,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:13,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:13,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:13,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047250796] [2022-02-10 22:23:13,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047250796] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:13,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:13,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:13,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083144374] [2022-02-10 22:23:13,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:13,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:13,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:13,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:13,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:13,275 INFO L87 Difference]: Start difference. First operand 5943 states and 15626 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:14,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:14,304 INFO L93 Difference]: Finished difference Result 8419 states and 21937 transitions. [2022-02-10 22:23:14,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-10 22:23:14,305 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:14,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:14,316 INFO L225 Difference]: With dead ends: 8419 [2022-02-10 22:23:14,316 INFO L226 Difference]: Without dead ends: 7998 [2022-02-10 22:23:14,316 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=493, Invalid=1577, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:23:14,317 INFO L934 BasicCegarLoop]: 309 mSDtfsCounter, 645 mSDsluCounter, 3880 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 4081 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:14,317 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 4081 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:14,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7998 states. [2022-02-10 22:23:14,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7998 to 5955. [2022-02-10 22:23:14,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5955 states, 5954 states have (on average 2.6279811891165603) internal successors, (15647), 5954 states have internal predecessors, (15647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:14,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5955 states to 5955 states and 15647 transitions. [2022-02-10 22:23:14,396 INFO L78 Accepts]: Start accepts. Automaton has 5955 states and 15647 transitions. Word has length 111 [2022-02-10 22:23:14,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:14,397 INFO L470 AbstractCegarLoop]: Abstraction has 5955 states and 15647 transitions. [2022-02-10 22:23:14,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:14,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5955 states and 15647 transitions. [2022-02-10 22:23:14,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:14,403 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:14,403 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] [2022-02-10 22:23:14,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-02-10 22:23:14,403 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:14,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:14,403 INFO L85 PathProgramCache]: Analyzing trace with hash -41698431, now seen corresponding path program 18 times [2022-02-10 22:23:14,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:14,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128722457] [2022-02-10 22:23:14,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:14,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:14,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:14,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:14,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128722457] [2022-02-10 22:23:14,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128722457] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:14,599 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:14,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:14,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718918554] [2022-02-10 22:23:14,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:14,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:14,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:14,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:14,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:14,600 INFO L87 Difference]: Start difference. First operand 5955 states and 15647 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:15,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:15,612 INFO L93 Difference]: Finished difference Result 8264 states and 21530 transitions. [2022-02-10 22:23:15,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-10 22:23:15,613 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:15,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:15,624 INFO L225 Difference]: With dead ends: 8264 [2022-02-10 22:23:15,624 INFO L226 Difference]: Without dead ends: 7936 [2022-02-10 22:23:15,624 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=449, Invalid=1443, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:23:15,624 INFO L934 BasicCegarLoop]: 302 mSDtfsCounter, 599 mSDsluCounter, 3895 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 4093 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:15,624 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [599 Valid, 4093 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:15,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7936 states. [2022-02-10 22:23:15,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7936 to 5959. [2022-02-10 22:23:15,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5959 states, 5958 states have (on average 2.6273917421953676) internal successors, (15654), 5958 states have internal predecessors, (15654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:15,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 15654 transitions. [2022-02-10 22:23:15,696 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 15654 transitions. Word has length 111 [2022-02-10 22:23:15,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:15,697 INFO L470 AbstractCegarLoop]: Abstraction has 5959 states and 15654 transitions. [2022-02-10 22:23:15,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:15,697 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 15654 transitions. [2022-02-10 22:23:15,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:15,702 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:15,702 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, 1, 1] [2022-02-10 22:23:15,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-02-10 22:23:15,702 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:15,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:15,703 INFO L85 PathProgramCache]: Analyzing trace with hash 253904405, now seen corresponding path program 19 times [2022-02-10 22:23:15,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:15,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077541522] [2022-02-10 22:23:15,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:15,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:15,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:15,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:15,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077541522] [2022-02-10 22:23:15,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077541522] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:15,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:15,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:15,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084870704] [2022-02-10 22:23:15,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:15,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:15,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:15,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:15,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:15,899 INFO L87 Difference]: Start difference. First operand 5959 states and 15654 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:16,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:16,837 INFO L93 Difference]: Finished difference Result 8171 states and 21289 transitions. [2022-02-10 22:23:16,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:23:16,838 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:16,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:16,850 INFO L225 Difference]: With dead ends: 8171 [2022-02-10 22:23:16,851 INFO L226 Difference]: Without dead ends: 7874 [2022-02-10 22:23:16,851 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=413, Invalid=1309, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:23:16,851 INFO L934 BasicCegarLoop]: 296 mSDtfsCounter, 603 mSDsluCounter, 3575 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:16,851 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [603 Valid, 3786 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:16,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7874 states. [2022-02-10 22:23:16,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7874 to 5963. [2022-02-10 22:23:16,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5963 states, 5962 states have (on average 2.6268030862126803) internal successors, (15661), 5962 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:16,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5963 states to 5963 states and 15661 transitions. [2022-02-10 22:23:16,968 INFO L78 Accepts]: Start accepts. Automaton has 5963 states and 15661 transitions. Word has length 111 [2022-02-10 22:23:16,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:16,968 INFO L470 AbstractCegarLoop]: Abstraction has 5963 states and 15661 transitions. [2022-02-10 22:23:16,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:16,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5963 states and 15661 transitions. [2022-02-10 22:23:16,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:16,976 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:16,976 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:16,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-02-10 22:23:16,976 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:16,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:16,977 INFO L85 PathProgramCache]: Analyzing trace with hash -164277249, now seen corresponding path program 20 times [2022-02-10 22:23:16,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:16,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557563103] [2022-02-10 22:23:16,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:16,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:17,184 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 22:23:17,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:17,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557563103] [2022-02-10 22:23:17,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557563103] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:17,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:17,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:17,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624252429] [2022-02-10 22:23:17,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:17,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:17,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:17,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:17,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:17,185 INFO L87 Difference]: Start difference. First operand 5963 states and 15661 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:18,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:18,171 INFO L93 Difference]: Finished difference Result 8016 states and 20890 transitions. [2022-02-10 22:23:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:23:18,172 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:18,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:18,183 INFO L225 Difference]: With dead ends: 8016 [2022-02-10 22:23:18,184 INFO L226 Difference]: Without dead ends: 7753 [2022-02-10 22:23:18,184 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=479, Invalid=1243, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:23:18,184 INFO L934 BasicCegarLoop]: 285 mSDtfsCounter, 550 mSDsluCounter, 3618 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 3833 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:18,185 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [550 Valid, 3833 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:18,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7753 states. [2022-02-10 22:23:18,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7753 to 5967. [2022-02-10 22:23:18,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5967 states, 5966 states have (on average 2.6262152195776065) internal successors, (15668), 5966 states have internal predecessors, (15668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:18,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5967 states to 5967 states and 15668 transitions. [2022-02-10 22:23:18,269 INFO L78 Accepts]: Start accepts. Automaton has 5967 states and 15668 transitions. Word has length 111 [2022-02-10 22:23:18,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:18,269 INFO L470 AbstractCegarLoop]: Abstraction has 5967 states and 15668 transitions. [2022-02-10 22:23:18,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:18,269 INFO L276 IsEmpty]: Start isEmpty. Operand 5967 states and 15668 transitions. [2022-02-10 22:23:18,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:18,275 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:18,275 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:18,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-02-10 22:23:18,276 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:18,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:18,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1328544185, now seen corresponding path program 21 times [2022-02-10 22:23:18,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:18,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210642865] [2022-02-10 22:23:18,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:18,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:18,480 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 22:23:18,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:18,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210642865] [2022-02-10 22:23:18,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210642865] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:18,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:18,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:18,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670509908] [2022-02-10 22:23:18,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:18,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:18,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:18,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:18,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:18,481 INFO L87 Difference]: Start difference. First operand 5967 states and 15668 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:19,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:19,373 INFO L93 Difference]: Finished difference Result 8019 states and 20892 transitions. [2022-02-10 22:23:19,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:23:19,373 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:19,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:19,385 INFO L225 Difference]: With dead ends: 8019 [2022-02-10 22:23:19,385 INFO L226 Difference]: Without dead ends: 7673 [2022-02-10 22:23:19,386 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=385, Invalid=1175, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:23:19,386 INFO L934 BasicCegarLoop]: 290 mSDtfsCounter, 556 mSDsluCounter, 3554 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 3769 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:19,386 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [556 Valid, 3769 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:19,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7673 states. [2022-02-10 22:23:19,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7673 to 5887. [2022-02-10 22:23:19,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5887 states, 5886 states have (on average 2.637444784233775) internal successors, (15524), 5886 states have internal predecessors, (15524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:19,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5887 states to 5887 states and 15524 transitions. [2022-02-10 22:23:19,475 INFO L78 Accepts]: Start accepts. Automaton has 5887 states and 15524 transitions. Word has length 111 [2022-02-10 22:23:19,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:19,475 INFO L470 AbstractCegarLoop]: Abstraction has 5887 states and 15524 transitions. [2022-02-10 22:23:19,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:19,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5887 states and 15524 transitions. [2022-02-10 22:23:19,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:19,482 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:19,482 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, 1, 1] [2022-02-10 22:23:19,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-02-10 22:23:19,482 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:19,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:19,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1528285363, now seen corresponding path program 22 times [2022-02-10 22:23:19,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:19,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109201883] [2022-02-10 22:23:19,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:19,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:19,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:19,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109201883] [2022-02-10 22:23:19,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109201883] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:19,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:19,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:19,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557847769] [2022-02-10 22:23:19,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:19,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:19,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:19,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:19,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:19,679 INFO L87 Difference]: Start difference. First operand 5887 states and 15524 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:20,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:20,862 INFO L93 Difference]: Finished difference Result 8559 states and 22328 transitions. [2022-02-10 22:23:20,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:23:20,862 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:20,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:20,874 INFO L225 Difference]: With dead ends: 8559 [2022-02-10 22:23:20,874 INFO L226 Difference]: Without dead ends: 7649 [2022-02-10 22:23:20,875 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=618, Invalid=1734, Unknown=0, NotChecked=0, Total=2352 [2022-02-10 22:23:20,875 INFO L934 BasicCegarLoop]: 337 mSDtfsCounter, 819 mSDsluCounter, 4086 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 4294 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:20,875 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [819 Valid, 4294 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:20,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7649 states. [2022-02-10 22:23:20,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7649 to 5863. [2022-02-10 22:23:20,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5863 states, 5862 states have (on average 2.6403957693619926) internal successors, (15478), 5862 states have internal predecessors, (15478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:20,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 15478 transitions. [2022-02-10 22:23:20,970 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 15478 transitions. Word has length 111 [2022-02-10 22:23:20,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:20,970 INFO L470 AbstractCegarLoop]: Abstraction has 5863 states and 15478 transitions. [2022-02-10 22:23:20,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:20,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 15478 transitions. [2022-02-10 22:23:20,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:20,978 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:20,978 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, 1, 1] [2022-02-10 22:23:20,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-02-10 22:23:20,978 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:20,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:20,978 INFO L85 PathProgramCache]: Analyzing trace with hash -512997791, now seen corresponding path program 23 times [2022-02-10 22:23:20,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:20,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102268015] [2022-02-10 22:23:20,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:20,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:21,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:21,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102268015] [2022-02-10 22:23:21,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102268015] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:21,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:21,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:21,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481855684] [2022-02-10 22:23:21,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:21,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:21,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:21,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:21,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:21,181 INFO L87 Difference]: Start difference. First operand 5863 states and 15478 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:22,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:22,895 INFO L93 Difference]: Finished difference Result 9497 states and 24624 transitions. [2022-02-10 22:23:22,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:23:22,895 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:22,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:22,908 INFO L225 Difference]: With dead ends: 9497 [2022-02-10 22:23:22,908 INFO L226 Difference]: Without dead ends: 8421 [2022-02-10 22:23:22,908 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=789, Invalid=1967, Unknown=0, NotChecked=0, Total=2756 [2022-02-10 22:23:22,909 INFO L934 BasicCegarLoop]: 351 mSDtfsCounter, 1050 mSDsluCounter, 4219 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 4426 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:22,909 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1050 Valid, 4426 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:23:22,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8421 states. [2022-02-10 22:23:22,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8421 to 5859. [2022-02-10 22:23:22,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.640320928644589) internal successors, (15467), 5858 states have internal predecessors, (15467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:23,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15467 transitions. [2022-02-10 22:23:23,005 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15467 transitions. Word has length 111 [2022-02-10 22:23:23,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:23,005 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15467 transitions. [2022-02-10 22:23:23,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:23,005 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15467 transitions. [2022-02-10 22:23:23,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:23,012 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:23,012 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, 1, 1] [2022-02-10 22:23:23,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-02-10 22:23:23,012 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:23,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:23,012 INFO L85 PathProgramCache]: Analyzing trace with hash 948262599, now seen corresponding path program 24 times [2022-02-10 22:23:23,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:23,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286767407] [2022-02-10 22:23:23,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:23,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:23,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:23,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:23,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286767407] [2022-02-10 22:23:23,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286767407] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:23,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:23,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:23,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268248188] [2022-02-10 22:23:23,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:23,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:23,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:23,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:23,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:23,219 INFO L87 Difference]: Start difference. First operand 5859 states and 15467 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:24,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:24,357 INFO L93 Difference]: Finished difference Result 9400 states and 24376 transitions. [2022-02-10 22:23:24,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-10 22:23:24,358 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:24,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:24,370 INFO L225 Difference]: With dead ends: 9400 [2022-02-10 22:23:24,371 INFO L226 Difference]: Without dead ends: 8359 [2022-02-10 22:23:24,371 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=749, Invalid=1801, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 22:23:24,371 INFO L934 BasicCegarLoop]: 354 mSDtfsCounter, 1105 mSDsluCounter, 4093 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 4307 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:24,371 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1105 Valid, 4307 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:24,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8359 states. [2022-02-10 22:23:24,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8359 to 5867. [2022-02-10 22:23:24,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5867 states, 5866 states have (on average 2.639106716672349) internal successors, (15481), 5866 states have internal predecessors, (15481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:24,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5867 states to 5867 states and 15481 transitions. [2022-02-10 22:23:24,473 INFO L78 Accepts]: Start accepts. Automaton has 5867 states and 15481 transitions. Word has length 111 [2022-02-10 22:23:24,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:24,473 INFO L470 AbstractCegarLoop]: Abstraction has 5867 states and 15481 transitions. [2022-02-10 22:23:24,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:24,473 INFO L276 IsEmpty]: Start isEmpty. Operand 5867 states and 15481 transitions. [2022-02-10 22:23:24,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:24,479 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:24,479 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, 1, 1] [2022-02-10 22:23:24,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-02-10 22:23:24,480 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:24,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:24,480 INFO L85 PathProgramCache]: Analyzing trace with hash 662065799, now seen corresponding path program 25 times [2022-02-10 22:23:24,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:24,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2569053] [2022-02-10 22:23:24,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:24,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:24,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:24,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:24,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2569053] [2022-02-10 22:23:24,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2569053] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:24,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:24,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:24,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478628166] [2022-02-10 22:23:24,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:24,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:24,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:24,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:24,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:24,678 INFO L87 Difference]: Start difference. First operand 5867 states and 15481 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:25,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:25,832 INFO L93 Difference]: Finished difference Result 9493 states and 24647 transitions. [2022-02-10 22:23:25,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:23:25,832 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:25,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:25,845 INFO L225 Difference]: With dead ends: 9493 [2022-02-10 22:23:25,845 INFO L226 Difference]: Without dead ends: 8514 [2022-02-10 22:23:25,846 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=695, Invalid=1755, Unknown=0, NotChecked=0, Total=2450 [2022-02-10 22:23:25,846 INFO L934 BasicCegarLoop]: 361 mSDtfsCounter, 956 mSDsluCounter, 4522 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 4716 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:25,846 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [956 Valid, 4716 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:25,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8514 states. [2022-02-10 22:23:25,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8514 to 5879. [2022-02-10 22:23:25,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5879 states, 5878 states have (on average 2.637291595780878) internal successors, (15502), 5878 states have internal predecessors, (15502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:25,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 15502 transitions. [2022-02-10 22:23:25,950 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 15502 transitions. Word has length 111 [2022-02-10 22:23:25,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:25,950 INFO L470 AbstractCegarLoop]: Abstraction has 5879 states and 15502 transitions. [2022-02-10 22:23:25,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:25,950 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 15502 transitions. [2022-02-10 22:23:25,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:25,957 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:25,957 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, 1, 1] [2022-02-10 22:23:25,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-02-10 22:23:25,957 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:25,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:25,958 INFO L85 PathProgramCache]: Analyzing trace with hash 433284315, now seen corresponding path program 26 times [2022-02-10 22:23:25,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:25,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377062975] [2022-02-10 22:23:25,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:25,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:26,149 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 22:23:26,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:26,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377062975] [2022-02-10 22:23:26,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377062975] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:26,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:26,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:26,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676603711] [2022-02-10 22:23:26,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:26,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:26,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:26,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:26,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:26,150 INFO L87 Difference]: Start difference. First operand 5879 states and 15502 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:27,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:27,225 INFO L93 Difference]: Finished difference Result 9047 states and 23517 transitions. [2022-02-10 22:23:27,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:23:27,226 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:27,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:27,238 INFO L225 Difference]: With dead ends: 9047 [2022-02-10 22:23:27,238 INFO L226 Difference]: Without dead ends: 8192 [2022-02-10 22:23:27,239 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=600, Invalid=1656, Unknown=0, NotChecked=0, Total=2256 [2022-02-10 22:23:27,239 INFO L934 BasicCegarLoop]: 342 mSDtfsCounter, 903 mSDsluCounter, 4162 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 4354 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:27,239 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [903 Valid, 4354 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:27,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8192 states. [2022-02-10 22:23:27,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8192 to 5935. [2022-02-10 22:23:27,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5935 states, 5934 states have (on average 2.629592180653859) internal successors, (15604), 5934 states have internal predecessors, (15604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:27,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 15604 transitions. [2022-02-10 22:23:27,334 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 15604 transitions. Word has length 111 [2022-02-10 22:23:27,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:27,334 INFO L470 AbstractCegarLoop]: Abstraction has 5935 states and 15604 transitions. [2022-02-10 22:23:27,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:27,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 15604 transitions. [2022-02-10 22:23:27,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:27,341 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:27,341 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, 1, 1] [2022-02-10 22:23:27,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-02-10 22:23:27,341 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:27,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:27,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1122778749, now seen corresponding path program 27 times [2022-02-10 22:23:27,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:27,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029856553] [2022-02-10 22:23:27,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:27,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:27,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:27,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:27,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029856553] [2022-02-10 22:23:27,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029856553] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:27,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:27,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:27,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445928711] [2022-02-10 22:23:27,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:27,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:27,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:27,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:27,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:27,555 INFO L87 Difference]: Start difference. First operand 5935 states and 15604 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:28,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:28,572 INFO L93 Difference]: Finished difference Result 8613 states and 22359 transitions. [2022-02-10 22:23:28,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-10 22:23:28,572 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:28,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:28,584 INFO L225 Difference]: With dead ends: 8613 [2022-02-10 22:23:28,585 INFO L226 Difference]: Without dead ends: 8161 [2022-02-10 22:23:28,585 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:23:28,585 INFO L934 BasicCegarLoop]: 324 mSDtfsCounter, 813 mSDsluCounter, 3954 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 4138 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:28,585 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [813 Valid, 4138 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:28,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8161 states. [2022-02-10 22:23:28,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8161 to 5939. [2022-02-10 22:23:28,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5939 states, 5938 states have (on average 2.628999663186258) internal successors, (15611), 5938 states have internal predecessors, (15611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:28,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5939 states to 5939 states and 15611 transitions. [2022-02-10 22:23:28,679 INFO L78 Accepts]: Start accepts. Automaton has 5939 states and 15611 transitions. Word has length 111 [2022-02-10 22:23:28,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:28,680 INFO L470 AbstractCegarLoop]: Abstraction has 5939 states and 15611 transitions. [2022-02-10 22:23:28,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:28,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5939 states and 15611 transitions. [2022-02-10 22:23:28,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:28,686 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:28,687 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, 1, 1] [2022-02-10 22:23:28,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-02-10 22:23:28,688 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:28,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:28,688 INFO L85 PathProgramCache]: Analyzing trace with hash -533918335, now seen corresponding path program 28 times [2022-02-10 22:23:28,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:28,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268611778] [2022-02-10 22:23:28,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:28,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:28,900 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 22:23:28,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:28,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268611778] [2022-02-10 22:23:28,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268611778] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:28,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:28,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:28,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191142105] [2022-02-10 22:23:28,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:28,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:28,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:28,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:28,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:28,901 INFO L87 Difference]: Start difference. First operand 5939 states and 15611 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:29,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:29,841 INFO L93 Difference]: Finished difference Result 8375 states and 21812 transitions. [2022-02-10 22:23:29,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-10 22:23:29,842 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:29,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:29,853 INFO L225 Difference]: With dead ends: 8375 [2022-02-10 22:23:29,853 INFO L226 Difference]: Without dead ends: 7954 [2022-02-10 22:23:29,853 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=515, Invalid=1555, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:23:29,854 INFO L934 BasicCegarLoop]: 315 mSDtfsCounter, 673 mSDsluCounter, 4008 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 4186 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:29,854 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [673 Valid, 4186 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:29,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7954 states. [2022-02-10 22:23:29,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7954 to 5951. [2022-02-10 22:23:29,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5951 states, 5950 states have (on average 2.6272268907563023) internal successors, (15632), 5950 states have internal predecessors, (15632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:29,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5951 states to 5951 states and 15632 transitions. [2022-02-10 22:23:29,955 INFO L78 Accepts]: Start accepts. Automaton has 5951 states and 15632 transitions. Word has length 111 [2022-02-10 22:23:29,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:29,955 INFO L470 AbstractCegarLoop]: Abstraction has 5951 states and 15632 transitions. [2022-02-10 22:23:29,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:29,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5951 states and 15632 transitions. [2022-02-10 22:23:29,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:29,962 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:29,962 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, 1, 1] [2022-02-10 22:23:29,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-02-10 22:23:29,962 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:29,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:29,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1297407559, now seen corresponding path program 29 times [2022-02-10 22:23:29,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:29,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099186420] [2022-02-10 22:23:29,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:29,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:30,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:30,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:30,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099186420] [2022-02-10 22:23:30,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099186420] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:30,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:30,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:30,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32285309] [2022-02-10 22:23:30,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:30,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:30,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:30,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:30,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:30,157 INFO L87 Difference]: Start difference. First operand 5951 states and 15632 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:31,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:31,031 INFO L93 Difference]: Finished difference Result 8220 states and 21405 transitions. [2022-02-10 22:23:31,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:31,031 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:31,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:31,043 INFO L225 Difference]: With dead ends: 8220 [2022-02-10 22:23:31,044 INFO L226 Difference]: Without dead ends: 7892 [2022-02-10 22:23:31,044 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:23:31,044 INFO L934 BasicCegarLoop]: 306 mSDtfsCounter, 644 mSDsluCounter, 3765 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 3949 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:31,044 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [644 Valid, 3949 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:31,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7892 states. [2022-02-10 22:23:31,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7892 to 5955. [2022-02-10 22:23:31,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5955 states, 5954 states have (on average 2.626637554585153) internal successors, (15639), 5954 states have internal predecessors, (15639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:31,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5955 states to 5955 states and 15639 transitions. [2022-02-10 22:23:31,131 INFO L78 Accepts]: Start accepts. Automaton has 5955 states and 15639 transitions. Word has length 111 [2022-02-10 22:23:31,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:31,131 INFO L470 AbstractCegarLoop]: Abstraction has 5955 states and 15639 transitions. [2022-02-10 22:23:31,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:31,131 INFO L276 IsEmpty]: Start isEmpty. Operand 5955 states and 15639 transitions. [2022-02-10 22:23:31,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:31,138 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:31,138 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, 1, 1] [2022-02-10 22:23:31,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-02-10 22:23:31,138 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:31,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:31,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1593010395, now seen corresponding path program 30 times [2022-02-10 22:23:31,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:31,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582718566] [2022-02-10 22:23:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:31,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:31,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:31,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:31,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582718566] [2022-02-10 22:23:31,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582718566] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:31,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:31,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:31,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930455504] [2022-02-10 22:23:31,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:31,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:31,339 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:31,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:31,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:31,339 INFO L87 Difference]: Start difference. First operand 5955 states and 15639 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:32,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:32,229 INFO L93 Difference]: Finished difference Result 8127 states and 21164 transitions. [2022-02-10 22:23:32,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:23:32,229 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:32,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:32,241 INFO L225 Difference]: With dead ends: 8127 [2022-02-10 22:23:32,242 INFO L226 Difference]: Without dead ends: 7830 [2022-02-10 22:23:32,242 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=427, Invalid=1295, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:23:32,242 INFO L934 BasicCegarLoop]: 298 mSDtfsCounter, 616 mSDsluCounter, 3791 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 3973 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:32,242 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [616 Valid, 3973 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:32,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7830 states. [2022-02-10 22:23:32,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7830 to 5959. [2022-02-10 22:23:32,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5959 states, 5958 states have (on average 2.6260490097348104) internal successors, (15646), 5958 states have internal predecessors, (15646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:32,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 15646 transitions. [2022-02-10 22:23:32,336 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 15646 transitions. Word has length 111 [2022-02-10 22:23:32,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:32,336 INFO L470 AbstractCegarLoop]: Abstraction has 5959 states and 15646 transitions. [2022-02-10 22:23:32,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:32,336 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 15646 transitions. [2022-02-10 22:23:32,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:32,343 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:32,343 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:32,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-02-10 22:23:32,343 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:32,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:32,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1174828741, now seen corresponding path program 31 times [2022-02-10 22:23:32,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:32,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405967551] [2022-02-10 22:23:32,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:32,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:32,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:32,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:32,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405967551] [2022-02-10 22:23:32,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405967551] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:32,587 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:32,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:32,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009995129] [2022-02-10 22:23:32,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:32,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:32,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:32,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:32,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:32,588 INFO L87 Difference]: Start difference. First operand 5959 states and 15646 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:33,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:33,650 INFO L93 Difference]: Finished difference Result 7972 states and 20765 transitions. [2022-02-10 22:23:33,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:23:33,650 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:33,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:33,663 INFO L225 Difference]: With dead ends: 7972 [2022-02-10 22:23:33,663 INFO L226 Difference]: Without dead ends: 7709 [2022-02-10 22:23:33,663 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=485, Invalid=1237, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:23:33,663 INFO L934 BasicCegarLoop]: 283 mSDtfsCounter, 529 mSDsluCounter, 3538 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 3728 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:33,663 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 3728 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:33,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7709 states. [2022-02-10 22:23:33,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7709 to 5963. [2022-02-10 22:23:33,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5963 states, 5962 states have (on average 2.625461254612546) internal successors, (15653), 5962 states have internal predecessors, (15653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:33,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5963 states to 5963 states and 15653 transitions. [2022-02-10 22:23:33,759 INFO L78 Accepts]: Start accepts. Automaton has 5963 states and 15653 transitions. Word has length 111 [2022-02-10 22:23:33,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:33,760 INFO L470 AbstractCegarLoop]: Abstraction has 5963 states and 15653 transitions. [2022-02-10 22:23:33,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:33,760 INFO L276 IsEmpty]: Start isEmpty. Operand 5963 states and 15653 transitions. [2022-02-10 22:23:33,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:33,766 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:33,766 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, 1, 1] [2022-02-10 22:23:33,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-02-10 22:23:33,767 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:33,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:33,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1627317121, now seen corresponding path program 32 times [2022-02-10 22:23:33,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:33,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188519907] [2022-02-10 22:23:33,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:33,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:33,961 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 22:23:33,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:33,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188519907] [2022-02-10 22:23:33,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188519907] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:33,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:33,962 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:33,962 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156462434] [2022-02-10 22:23:33,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:33,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:33,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:33,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:33,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:33,963 INFO L87 Difference]: Start difference. First operand 5963 states and 15653 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:34,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:34,788 INFO L93 Difference]: Finished difference Result 7975 states and 20767 transitions. [2022-02-10 22:23:34,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:23:34,788 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:34,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:34,800 INFO L225 Difference]: With dead ends: 7975 [2022-02-10 22:23:34,800 INFO L226 Difference]: Without dead ends: 7629 [2022-02-10 22:23:34,800 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=395, Invalid=1165, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:23:34,801 INFO L934 BasicCegarLoop]: 291 mSDtfsCounter, 612 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 3731 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:34,801 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [612 Valid, 3731 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:34,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7629 states. [2022-02-10 22:23:34,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7629 to 5883. [2022-02-10 22:23:34,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 5882 states have (on average 2.6366882012920776) internal successors, (15509), 5882 states have internal predecessors, (15509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:34,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 15509 transitions. [2022-02-10 22:23:34,899 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 15509 transitions. Word has length 111 [2022-02-10 22:23:34,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:34,899 INFO L470 AbstractCegarLoop]: Abstraction has 5883 states and 15509 transitions. [2022-02-10 22:23:34,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:34,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 15509 transitions. [2022-02-10 22:23:34,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:34,906 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:34,906 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:34,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-02-10 22:23:34,906 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:34,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:34,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1427575943, now seen corresponding path program 33 times [2022-02-10 22:23:34,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:34,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578916488] [2022-02-10 22:23:34,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:34,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:35,110 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 22:23:35,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:35,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578916488] [2022-02-10 22:23:35,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578916488] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:35,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:35,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:35,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389146812] [2022-02-10 22:23:35,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:35,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:35,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:35,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:35,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:35,112 INFO L87 Difference]: Start difference. First operand 5883 states and 15509 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:36,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:36,233 INFO L93 Difference]: Finished difference Result 8403 states and 21899 transitions. [2022-02-10 22:23:36,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:23:36,234 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:36,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:36,243 INFO L225 Difference]: With dead ends: 8403 [2022-02-10 22:23:36,243 INFO L226 Difference]: Without dead ends: 7493 [2022-02-10 22:23:36,244 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=646, Invalid=1706, Unknown=0, NotChecked=0, Total=2352 [2022-02-10 22:23:36,244 INFO L934 BasicCegarLoop]: 353 mSDtfsCounter, 751 mSDsluCounter, 4414 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 4605 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:36,244 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 4605 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:36,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7493 states. [2022-02-10 22:23:36,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7493 to 5859. [2022-02-10 22:23:36,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.6389552748378287) internal successors, (15459), 5858 states have internal predecessors, (15459), 0 states have call successors, (0), 0 states have call 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 5859 states to 5859 states and 15459 transitions. [2022-02-10 22:23:36,322 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15459 transitions. Word has length 111 [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 5859 states and 15459 transitions. [2022-02-10 22:23:36,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call 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 5859 states and 15459 transitions. [2022-02-10 22:23:36,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:36,329 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:36,329 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:36,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-02-10 22:23:36,329 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:36,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:36,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1831376339, now seen corresponding path program 34 times [2022-02-10 22:23:36,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:36,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852754210] [2022-02-10 22:23:36,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:36,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:36,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:36,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:36,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852754210] [2022-02-10 22:23:36,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852754210] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:36,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:36,533 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:36,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257027419] [2022-02-10 22:23:36,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:36,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:36,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:36,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:36,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:36,534 INFO L87 Difference]: Start difference. First operand 5859 states and 15459 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:37,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:37,664 INFO L93 Difference]: Finished difference Result 9237 states and 23951 transitions. [2022-02-10 22:23:37,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-10 22:23:37,664 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:37,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:37,677 INFO L225 Difference]: With dead ends: 9237 [2022-02-10 22:23:37,678 INFO L226 Difference]: Without dead ends: 8258 [2022-02-10 22:23:37,678 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=725, Invalid=1725, Unknown=0, NotChecked=0, Total=2450 [2022-02-10 22:23:37,678 INFO L934 BasicCegarLoop]: 360 mSDtfsCounter, 1059 mSDsluCounter, 4085 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 4295 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:37,678 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1059 Valid, 4295 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:37,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8258 states. [2022-02-10 22:23:37,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8258 to 5871. [2022-02-10 22:23:37,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5871 states, 5870 states have (on average 2.6371379897785348) internal successors, (15480), 5870 states have internal predecessors, (15480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:37,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5871 states to 5871 states and 15480 transitions. [2022-02-10 22:23:37,783 INFO L78 Accepts]: Start accepts. Automaton has 5871 states and 15480 transitions. Word has length 111 [2022-02-10 22:23:37,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:37,784 INFO L470 AbstractCegarLoop]: Abstraction has 5871 states and 15480 transitions. [2022-02-10 22:23:37,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:37,784 INFO L276 IsEmpty]: Start isEmpty. Operand 5871 states and 15480 transitions. [2022-02-10 22:23:37,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:37,793 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:37,793 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, 1, 1] [2022-02-10 22:23:37,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-02-10 22:23:37,793 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:37,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:37,793 INFO L85 PathProgramCache]: Analyzing trace with hash -2060157823, now seen corresponding path program 35 times [2022-02-10 22:23:37,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:37,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162524868] [2022-02-10 22:23:37,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:37,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:37,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:37,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:37,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162524868] [2022-02-10 22:23:37,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162524868] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:37,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:37,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:37,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258052796] [2022-02-10 22:23:37,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:37,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:37,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:37,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:37,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:37,985 INFO L87 Difference]: Start difference. First operand 5871 states and 15480 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:39,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:39,107 INFO L93 Difference]: Finished difference Result 9015 states and 23429 transitions. [2022-02-10 22:23:39,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:23:39,107 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:39,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:39,119 INFO L225 Difference]: With dead ends: 9015 [2022-02-10 22:23:39,120 INFO L226 Difference]: Without dead ends: 8160 [2022-02-10 22:23:39,120 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=625, Invalid=1631, Unknown=0, NotChecked=0, Total=2256 [2022-02-10 22:23:39,120 INFO L934 BasicCegarLoop]: 349 mSDtfsCounter, 879 mSDsluCounter, 4199 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 4392 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:39,120 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [879 Valid, 4392 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:39,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8160 states. [2022-02-10 22:23:39,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8160 to 5927. [2022-02-10 22:23:39,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5927 states, 5926 states have (on average 2.6294296321295985) internal successors, (15582), 5926 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:39,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5927 states to 5927 states and 15582 transitions. [2022-02-10 22:23:39,227 INFO L78 Accepts]: Start accepts. Automaton has 5927 states and 15582 transitions. Word has length 111 [2022-02-10 22:23:39,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:39,228 INFO L470 AbstractCegarLoop]: Abstraction has 5927 states and 15582 transitions. [2022-02-10 22:23:39,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:39,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5927 states and 15582 transitions. [2022-02-10 22:23:39,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:39,236 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:39,236 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:39,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-02-10 22:23:39,236 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:39,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:39,236 INFO L85 PathProgramCache]: Analyzing trace with hash 678746409, now seen corresponding path program 36 times [2022-02-10 22:23:39,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:39,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786090648] [2022-02-10 22:23:39,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:39,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:39,464 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 22:23:39,464 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:39,464 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786090648] [2022-02-10 22:23:39,464 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786090648] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:39,464 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:39,464 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:39,464 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115066728] [2022-02-10 22:23:39,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:39,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:39,465 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:39,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:39,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:39,465 INFO L87 Difference]: Start difference. First operand 5927 states and 15582 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:40,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:40,516 INFO L93 Difference]: Finished difference Result 8581 states and 22271 transitions. [2022-02-10 22:23:40,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-10 22:23:40,516 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:40,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:40,531 INFO L225 Difference]: With dead ends: 8581 [2022-02-10 22:23:40,531 INFO L226 Difference]: Without dead ends: 8129 [2022-02-10 22:23:40,531 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=580, Invalid=1582, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:23:40,532 INFO L934 BasicCegarLoop]: 331 mSDtfsCounter, 881 mSDsluCounter, 3911 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 4096 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:40,532 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [881 Valid, 4096 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:40,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8129 states. [2022-02-10 22:23:40,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8129 to 5931. [2022-02-10 22:23:40,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5931 states, 5930 states have (on average 2.6288364249578415) internal successors, (15589), 5930 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:40,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5931 states to 5931 states and 15589 transitions. [2022-02-10 22:23:40,625 INFO L78 Accepts]: Start accepts. Automaton has 5931 states and 15589 transitions. Word has length 111 [2022-02-10 22:23:40,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:40,625 INFO L470 AbstractCegarLoop]: Abstraction has 5931 states and 15589 transitions. [2022-02-10 22:23:40,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:40,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5931 states and 15589 transitions. [2022-02-10 22:23:40,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:40,636 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:40,636 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, 1, 1] [2022-02-10 22:23:40,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-02-10 22:23:40,637 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:40,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:40,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1267606823, now seen corresponding path program 37 times [2022-02-10 22:23:40,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:40,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647129242] [2022-02-10 22:23:40,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:40,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:40,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:40,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:40,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647129242] [2022-02-10 22:23:40,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647129242] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:40,815 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:40,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:40,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104827774] [2022-02-10 22:23:40,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:40,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:40,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:40,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:40,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:40,816 INFO L87 Difference]: Start difference. First operand 5931 states and 15589 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:41,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:41,812 INFO L93 Difference]: Finished difference Result 8343 states and 21724 transitions. [2022-02-10 22:23:41,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-10 22:23:41,813 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:41,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:41,825 INFO L225 Difference]: With dead ends: 8343 [2022-02-10 22:23:41,825 INFO L226 Difference]: Without dead ends: 7922 [2022-02-10 22:23:41,825 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=536, Invalid=1534, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:23:41,826 INFO L934 BasicCegarLoop]: 322 mSDtfsCounter, 720 mSDsluCounter, 3991 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 4171 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:41,826 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 4171 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:41,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7922 states. [2022-02-10 22:23:41,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7922 to 5943. [2022-02-10 22:23:41,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5943 states, 5942 states have (on average 2.6270615954224166) internal successors, (15610), 5942 states have internal predecessors, (15610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:41,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5943 states to 5943 states and 15610 transitions. [2022-02-10 22:23:41,923 INFO L78 Accepts]: Start accepts. Automaton has 5943 states and 15610 transitions. Word has length 111 [2022-02-10 22:23:41,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:41,923 INFO L470 AbstractCegarLoop]: Abstraction has 5943 states and 15610 transitions. [2022-02-10 22:23:41,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:41,923 INFO L276 IsEmpty]: Start isEmpty. Operand 5943 states and 15610 transitions. [2022-02-10 22:23:41,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:41,930 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:41,930 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:41,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-02-10 22:23:41,930 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:41,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:41,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1196034579, now seen corresponding path program 38 times [2022-02-10 22:23:41,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:41,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941523461] [2022-02-10 22:23:41,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:41,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:42,114 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 22:23:42,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:42,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941523461] [2022-02-10 22:23:42,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941523461] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:42,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:42,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:42,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040023185] [2022-02-10 22:23:42,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:42,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:42,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:42,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:42,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:42,116 INFO L87 Difference]: Start difference. First operand 5943 states and 15610 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:43,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:43,049 INFO L93 Difference]: Finished difference Result 8188 states and 21317 transitions. [2022-02-10 22:23:43,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:43,049 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:43,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:43,061 INFO L225 Difference]: With dead ends: 8188 [2022-02-10 22:23:43,061 INFO L226 Difference]: Without dead ends: 7860 [2022-02-10 22:23:43,061 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=484, Invalid=1408, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:23:43,061 INFO L934 BasicCegarLoop]: 313 mSDtfsCounter, 620 mSDsluCounter, 3871 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 4050 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:43,061 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [620 Valid, 4050 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:43,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7860 states. [2022-02-10 22:23:43,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7860 to 5947. [2022-02-10 22:23:43,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5947 states, 5946 states have (on average 2.626471577531113) internal successors, (15617), 5946 states have internal predecessors, (15617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:43,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5947 states to 5947 states and 15617 transitions. [2022-02-10 22:23:43,157 INFO L78 Accepts]: Start accepts. Automaton has 5947 states and 15617 transitions. Word has length 111 [2022-02-10 22:23:43,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:43,157 INFO L470 AbstractCegarLoop]: Abstraction has 5947 states and 15617 transitions. [2022-02-10 22:23:43,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:43,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5947 states and 15617 transitions. [2022-02-10 22:23:43,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:43,164 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:43,164 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:43,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-02-10 22:23:43,164 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:43,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:43,165 INFO L85 PathProgramCache]: Analyzing trace with hash -900431743, now seen corresponding path program 39 times [2022-02-10 22:23:43,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:43,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882705435] [2022-02-10 22:23:43,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:43,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:43,349 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 22:23:43,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:43,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882705435] [2022-02-10 22:23:43,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882705435] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:43,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:43,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:43,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973025546] [2022-02-10 22:23:43,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:43,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:43,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:43,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:43,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:43,351 INFO L87 Difference]: Start difference. First operand 5947 states and 15617 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:44,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:44,221 INFO L93 Difference]: Finished difference Result 8095 states and 21076 transitions. [2022-02-10 22:23:44,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:23:44,222 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:44,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:44,234 INFO L225 Difference]: With dead ends: 8095 [2022-02-10 22:23:44,234 INFO L226 Difference]: Without dead ends: 7798 [2022-02-10 22:23:44,234 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=440, Invalid=1282, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:23:44,234 INFO L934 BasicCegarLoop]: 305 mSDtfsCounter, 663 mSDsluCounter, 3795 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 3977 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:44,235 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [663 Valid, 3977 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:44,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7798 states. [2022-02-10 22:23:44,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7798 to 5951. [2022-02-10 22:23:44,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5951 states, 5950 states have (on average 2.6258823529411766) internal successors, (15624), 5950 states have internal predecessors, (15624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:44,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5951 states to 5951 states and 15624 transitions. [2022-02-10 22:23:44,321 INFO L78 Accepts]: Start accepts. Automaton has 5951 states and 15624 transitions. Word has length 111 [2022-02-10 22:23:44,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:44,321 INFO L470 AbstractCegarLoop]: Abstraction has 5951 states and 15624 transitions. [2022-02-10 22:23:44,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:44,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5951 states and 15624 transitions. [2022-02-10 22:23:44,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:44,327 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:44,327 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:44,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-02-10 22:23:44,327 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:44,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:44,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1318613397, now seen corresponding path program 40 times [2022-02-10 22:23:44,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:44,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786067220] [2022-02-10 22:23:44,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:44,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:44,510 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 22:23:44,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:44,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786067220] [2022-02-10 22:23:44,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786067220] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:44,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:44,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:44,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338950771] [2022-02-10 22:23:44,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:44,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:44,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:44,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:44,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:44,512 INFO L87 Difference]: Start difference. First operand 5951 states and 15624 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:45,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:45,427 INFO L93 Difference]: Finished difference Result 7940 states and 20677 transitions. [2022-02-10 22:23:45,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:23:45,427 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:45,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:45,439 INFO L225 Difference]: With dead ends: 7940 [2022-02-10 22:23:45,439 INFO L226 Difference]: Without dead ends: 7677 [2022-02-10 22:23:45,439 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=490, Invalid=1232, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:23:45,439 INFO L934 BasicCegarLoop]: 290 mSDtfsCounter, 577 mSDsluCounter, 3546 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 3732 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:45,440 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 3732 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:45,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7677 states. [2022-02-10 22:23:45,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7677 to 5955. [2022-02-10 22:23:45,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5955 states, 5954 states have (on average 2.6252939200537453) internal successors, (15631), 5954 states have internal predecessors, (15631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:45,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5955 states to 5955 states and 15631 transitions. [2022-02-10 22:23:45,527 INFO L78 Accepts]: Start accepts. Automaton has 5955 states and 15631 transitions. Word has length 111 [2022-02-10 22:23:45,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:45,527 INFO L470 AbstractCegarLoop]: Abstraction has 5955 states and 15631 transitions. [2022-02-10 22:23:45,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:45,527 INFO L276 IsEmpty]: Start isEmpty. Operand 5955 states and 15631 transitions. [2022-02-10 22:23:45,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:45,534 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:45,534 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:45,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-02-10 22:23:45,534 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:45,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:45,534 INFO L85 PathProgramCache]: Analyzing trace with hash 174208037, now seen corresponding path program 41 times [2022-02-10 22:23:45,534 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:45,534 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825881519] [2022-02-10 22:23:45,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:45,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:45,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:45,716 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:45,716 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825881519] [2022-02-10 22:23:45,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825881519] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:45,716 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:45,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:45,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213433952] [2022-02-10 22:23:45,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:45,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:45,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:45,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:45,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:45,717 INFO L87 Difference]: Start difference. First operand 5955 states and 15631 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:46,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:46,569 INFO L93 Difference]: Finished difference Result 7943 states and 20679 transitions. [2022-02-10 22:23:46,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:23:46,569 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:46,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:46,581 INFO L225 Difference]: With dead ends: 7943 [2022-02-10 22:23:46,581 INFO L226 Difference]: Without dead ends: 7597 [2022-02-10 22:23:46,581 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=404, Invalid=1156, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:23:46,581 INFO L934 BasicCegarLoop]: 298 mSDtfsCounter, 652 mSDsluCounter, 3537 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 3726 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:46,581 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [652 Valid, 3726 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:46,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7597 states. [2022-02-10 22:23:46,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7597 to 5875. [2022-02-10 22:23:46,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5875 states, 5874 states have (on average 2.6365338781069116) internal successors, (15487), 5874 states have internal predecessors, (15487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:46,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5875 states to 5875 states and 15487 transitions. [2022-02-10 22:23:46,673 INFO L78 Accepts]: Start accepts. Automaton has 5875 states and 15487 transitions. Word has length 111 [2022-02-10 22:23:46,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:46,673 INFO L470 AbstractCegarLoop]: Abstraction has 5875 states and 15487 transitions. [2022-02-10 22:23:46,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:46,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5875 states and 15487 transitions. [2022-02-10 22:23:46,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:46,679 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:46,679 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:46,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-02-10 22:23:46,680 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:46,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:46,680 INFO L85 PathProgramCache]: Analyzing trace with hash 373949215, now seen corresponding path program 42 times [2022-02-10 22:23:46,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:46,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84618535] [2022-02-10 22:23:46,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:46,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:46,897 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 22:23:46,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:46,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84618535] [2022-02-10 22:23:46,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84618535] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:46,898 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:46,898 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:46,898 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049442825] [2022-02-10 22:23:46,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:46,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:46,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:46,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:46,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:46,898 INFO L87 Difference]: Start difference. First operand 5875 states and 15487 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:48,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:48,151 INFO L93 Difference]: Finished difference Result 8371 states and 21811 transitions. [2022-02-10 22:23:48,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:23:48,151 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:48,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:48,163 INFO L225 Difference]: With dead ends: 8371 [2022-02-10 22:23:48,163 INFO L226 Difference]: Without dead ends: 7469 [2022-02-10 22:23:48,163 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=673, Invalid=1679, Unknown=0, NotChecked=0, Total=2352 [2022-02-10 22:23:48,164 INFO L934 BasicCegarLoop]: 359 mSDtfsCounter, 870 mSDsluCounter, 4224 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 4423 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:48,164 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 4423 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:48,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7469 states. [2022-02-10 22:23:48,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7469 to 5859. [2022-02-10 22:23:48,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.6369067941276887) internal successors, (15447), 5858 states have internal predecessors, (15447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:48,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15447 transitions. [2022-02-10 22:23:48,252 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15447 transitions. Word has length 111 [2022-02-10 22:23:48,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:48,253 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15447 transitions. [2022-02-10 22:23:48,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:48,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15447 transitions. [2022-02-10 22:23:48,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:48,259 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:48,259 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:48,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-02-10 22:23:48,259 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:48,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:48,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1755951803, now seen corresponding path program 43 times [2022-02-10 22:23:48,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:48,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691396932] [2022-02-10 22:23:48,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:48,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:48,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:48,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:48,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691396932] [2022-02-10 22:23:48,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691396932] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:48,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:48,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:48,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386104030] [2022-02-10 22:23:48,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:48,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:48,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:48,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:48,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:48,442 INFO L87 Difference]: Start difference. First operand 5859 states and 15447 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:49,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:49,583 INFO L93 Difference]: Finished difference Result 8995 states and 23374 transitions. [2022-02-10 22:23:49,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:23:49,584 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:49,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:49,596 INFO L225 Difference]: With dead ends: 8995 [2022-02-10 22:23:49,597 INFO L226 Difference]: Without dead ends: 8140 [2022-02-10 22:23:49,597 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=651, Invalid=1605, Unknown=0, NotChecked=0, Total=2256 [2022-02-10 22:23:49,597 INFO L934 BasicCegarLoop]: 353 mSDtfsCounter, 948 mSDsluCounter, 4126 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 4319 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:49,597 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 4319 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:49,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8140 states. [2022-02-10 22:23:49,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8140 to 5915. [2022-02-10 22:23:49,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5915 states, 5914 states have (on average 2.6291849847818733) internal successors, (15549), 5914 states have internal predecessors, (15549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:49,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5915 states to 5915 states and 15549 transitions. [2022-02-10 22:23:49,693 INFO L78 Accepts]: Start accepts. Automaton has 5915 states and 15549 transitions. Word has length 111 [2022-02-10 22:23:49,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:49,693 INFO L470 AbstractCegarLoop]: Abstraction has 5915 states and 15549 transitions. [2022-02-10 22:23:49,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:49,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5915 states and 15549 transitions. [2022-02-10 22:23:49,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:49,700 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:49,700 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:49,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-02-10 22:23:49,700 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:49,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:49,700 INFO L85 PathProgramCache]: Analyzing trace with hash 982952429, now seen corresponding path program 44 times [2022-02-10 22:23:49,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:49,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709582185] [2022-02-10 22:23:49,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:49,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:49,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:49,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:49,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709582185] [2022-02-10 22:23:49,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709582185] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:49,879 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:49,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:49,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467033570] [2022-02-10 22:23:49,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:49,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:49,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:49,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:49,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:49,879 INFO L87 Difference]: Start difference. First operand 5915 states and 15549 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:50,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:50,947 INFO L93 Difference]: Finished difference Result 8561 states and 22216 transitions. [2022-02-10 22:23:50,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-10 22:23:50,948 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:50,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:50,960 INFO L225 Difference]: With dead ends: 8561 [2022-02-10 22:23:50,961 INFO L226 Difference]: Without dead ends: 8109 [2022-02-10 22:23:50,961 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=604, Invalid=1558, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:23:50,961 INFO L934 BasicCegarLoop]: 335 mSDtfsCounter, 858 mSDsluCounter, 3984 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 4164 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:50,961 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 4164 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:50,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8109 states. [2022-02-10 22:23:51,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8109 to 5919. [2022-02-10 22:23:51,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5919 states, 5918 states have (on average 2.6285907401149036) internal successors, (15556), 5918 states have internal predecessors, (15556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:51,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5919 states to 5919 states and 15556 transitions. [2022-02-10 22:23:51,054 INFO L78 Accepts]: Start accepts. Automaton has 5919 states and 15556 transitions. Word has length 111 [2022-02-10 22:23:51,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:51,054 INFO L470 AbstractCegarLoop]: Abstraction has 5919 states and 15556 transitions. [2022-02-10 22:23:51,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:51,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5919 states and 15556 transitions. [2022-02-10 22:23:51,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:51,061 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:51,061 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, 1, 1] [2022-02-10 22:23:51,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-02-10 22:23:51,061 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:51,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:51,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1571812843, now seen corresponding path program 45 times [2022-02-10 22:23:51,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:51,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76334034] [2022-02-10 22:23:51,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:51,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:51,244 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 22:23:51,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:51,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76334034] [2022-02-10 22:23:51,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76334034] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:51,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:51,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:51,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324637591] [2022-02-10 22:23:51,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:51,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:51,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:51,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:51,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:51,245 INFO L87 Difference]: Start difference. First operand 5919 states and 15556 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:52,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:52,236 INFO L93 Difference]: Finished difference Result 8323 states and 21669 transitions. [2022-02-10 22:23:52,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-10 22:23:52,237 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:52,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:52,249 INFO L225 Difference]: With dead ends: 8323 [2022-02-10 22:23:52,249 INFO L226 Difference]: Without dead ends: 7902 [2022-02-10 22:23:52,250 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=558, Invalid=1512, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:23:52,250 INFO L934 BasicCegarLoop]: 326 mSDtfsCounter, 768 mSDsluCounter, 3792 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 3973 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:52,250 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [768 Valid, 3973 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:52,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7902 states. [2022-02-10 22:23:52,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7902 to 5931. [2022-02-10 22:23:52,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5931 states, 5930 states have (on average 2.62681281618887) internal successors, (15577), 5930 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:52,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5931 states to 5931 states and 15577 transitions. [2022-02-10 22:23:52,353 INFO L78 Accepts]: Start accepts. Automaton has 5931 states and 15577 transitions. Word has length 111 [2022-02-10 22:23:52,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:52,353 INFO L470 AbstractCegarLoop]: Abstraction has 5931 states and 15577 transitions. [2022-02-10 22:23:52,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:52,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5931 states and 15577 transitions. [2022-02-10 22:23:52,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:52,360 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:52,360 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, 1, 1] [2022-02-10 22:23:52,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-02-10 22:23:52,360 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:52,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:52,361 INFO L85 PathProgramCache]: Analyzing trace with hash -891828559, now seen corresponding path program 46 times [2022-02-10 22:23:52,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:52,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6027472] [2022-02-10 22:23:52,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:52,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:52,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:52,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6027472] [2022-02-10 22:23:52,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6027472] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:52,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:52,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:52,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342944239] [2022-02-10 22:23:52,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:52,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:52,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:52,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:52,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:52,547 INFO L87 Difference]: Start difference. First operand 5931 states and 15577 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:53,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:53,492 INFO L93 Difference]: Finished difference Result 8168 states and 21262 transitions. [2022-02-10 22:23:53,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:23:53,492 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:53,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:53,504 INFO L225 Difference]: With dead ends: 8168 [2022-02-10 22:23:53,504 INFO L226 Difference]: Without dead ends: 7840 [2022-02-10 22:23:53,505 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=502, Invalid=1390, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:23:53,505 INFO L934 BasicCegarLoop]: 317 mSDtfsCounter, 667 mSDsluCounter, 3996 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 4168 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:53,505 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [667 Valid, 4168 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:53,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7840 states. [2022-02-10 22:23:53,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7840 to 5935. [2022-02-10 22:23:53,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5935 states, 5934 states have (on average 2.626221772834513) internal successors, (15584), 5934 states have internal predecessors, (15584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:53,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 15584 transitions. [2022-02-10 22:23:53,601 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 15584 transitions. Word has length 111 [2022-02-10 22:23:53,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:53,602 INFO L470 AbstractCegarLoop]: Abstraction has 5935 states and 15584 transitions. [2022-02-10 22:23:53,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:53,602 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 15584 transitions. [2022-02-10 22:23:53,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:53,609 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:53,609 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:53,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-02-10 22:23:53,610 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:53,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:53,610 INFO L85 PathProgramCache]: Analyzing trace with hash -596225723, now seen corresponding path program 47 times [2022-02-10 22:23:53,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:53,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041031541] [2022-02-10 22:23:53,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:53,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:53,790 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 22:23:53,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:53,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041031541] [2022-02-10 22:23:53,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041031541] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:53,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:53,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:53,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970808778] [2022-02-10 22:23:53,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:53,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:53,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:53,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:53,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:53,791 INFO L87 Difference]: Start difference. First operand 5935 states and 15584 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:54,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:54,679 INFO L93 Difference]: Finished difference Result 8075 states and 21021 transitions. [2022-02-10 22:23:54,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:23:54,679 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:54,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:54,690 INFO L225 Difference]: With dead ends: 8075 [2022-02-10 22:23:54,690 INFO L226 Difference]: Without dead ends: 7778 [2022-02-10 22:23:54,690 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=454, Invalid=1268, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:23:54,690 INFO L934 BasicCegarLoop]: 309 mSDtfsCounter, 711 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 3798 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:54,690 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [711 Valid, 3798 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:54,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7778 states. [2022-02-10 22:23:54,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7778 to 5939. [2022-02-10 22:23:54,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5939 states, 5938 states have (on average 2.6256315257662513) internal successors, (15591), 5938 states have internal predecessors, (15591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:54,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5939 states to 5939 states and 15591 transitions. [2022-02-10 22:23:54,787 INFO L78 Accepts]: Start accepts. Automaton has 5939 states and 15591 transitions. Word has length 111 [2022-02-10 22:23:54,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:54,788 INFO L470 AbstractCegarLoop]: Abstraction has 5939 states and 15591 transitions. [2022-02-10 22:23:54,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:54,788 INFO L276 IsEmpty]: Start isEmpty. Operand 5939 states and 15591 transitions. [2022-02-10 22:23:54,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:54,793 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:54,794 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:54,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-02-10 22:23:54,794 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:54,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:54,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1014407377, now seen corresponding path program 48 times [2022-02-10 22:23:54,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:54,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305836163] [2022-02-10 22:23:54,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:54,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:54,974 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:54,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305836163] [2022-02-10 22:23:54,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305836163] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:54,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:54,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:54,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649910389] [2022-02-10 22:23:54,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:54,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:54,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:54,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:54,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:54,975 INFO L87 Difference]: Start difference. First operand 5939 states and 15591 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:56,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:56,022 INFO L93 Difference]: Finished difference Result 7920 states and 20622 transitions. [2022-02-10 22:23:56,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:23:56,023 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:56,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:56,035 INFO L225 Difference]: With dead ends: 7920 [2022-02-10 22:23:56,035 INFO L226 Difference]: Without dead ends: 7657 [2022-02-10 22:23:56,035 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=496, Invalid=1226, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:23:56,036 INFO L934 BasicCegarLoop]: 294 mSDtfsCounter, 696 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 3596 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:56,036 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 3596 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:56,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7657 states. [2022-02-10 22:23:56,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7657 to 5943. [2022-02-10 22:23:56,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5943 states, 5942 states have (on average 2.6250420733759676) internal successors, (15598), 5942 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:56,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5943 states to 5943 states and 15598 transitions. [2022-02-10 22:23:56,131 INFO L78 Accepts]: Start accepts. Automaton has 5943 states and 15598 transitions. Word has length 111 [2022-02-10 22:23:56,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:56,132 INFO L470 AbstractCegarLoop]: Abstraction has 5943 states and 15598 transitions. [2022-02-10 22:23:56,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:56,132 INFO L276 IsEmpty]: Start isEmpty. Operand 5943 states and 15598 transitions. [2022-02-10 22:23:56,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:56,138 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:56,139 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:56,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-02-10 22:23:56,139 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:56,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:56,139 INFO L85 PathProgramCache]: Analyzing trace with hash 478414057, now seen corresponding path program 49 times [2022-02-10 22:23:56,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:56,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566744559] [2022-02-10 22:23:56,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:56,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:56,321 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 22:23:56,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:56,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566744559] [2022-02-10 22:23:56,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566744559] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:56,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:56,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:56,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627598893] [2022-02-10 22:23:56,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:56,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:56,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:56,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:56,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:56,324 INFO L87 Difference]: Start difference. First operand 5943 states and 15598 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:57,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:57,151 INFO L93 Difference]: Finished difference Result 7923 states and 20624 transitions. [2022-02-10 22:23:57,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:23:57,152 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:57,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:57,166 INFO L225 Difference]: With dead ends: 7923 [2022-02-10 22:23:57,167 INFO L226 Difference]: Without dead ends: 7577 [2022-02-10 22:23:57,167 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=414, Invalid=1146, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:23:57,167 INFO L934 BasicCegarLoop]: 302 mSDtfsCounter, 622 mSDsluCounter, 3649 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 3829 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:57,167 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [622 Valid, 3829 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:57,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7577 states. [2022-02-10 22:23:57,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7577 to 5863. [2022-02-10 22:23:57,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5863 states, 5862 states have (on average 2.636301603548277) internal successors, (15454), 5862 states have internal predecessors, (15454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:57,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 15454 transitions. [2022-02-10 22:23:57,267 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 15454 transitions. Word has length 111 [2022-02-10 22:23:57,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:57,267 INFO L470 AbstractCegarLoop]: Abstraction has 5863 states and 15454 transitions. [2022-02-10 22:23:57,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:57,267 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 15454 transitions. [2022-02-10 22:23:57,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:57,274 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:57,274 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, 1, 1] [2022-02-10 22:23:57,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-02-10 22:23:57,274 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:57,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:57,275 INFO L85 PathProgramCache]: Analyzing trace with hash 678155235, now seen corresponding path program 50 times [2022-02-10 22:23:57,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:57,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353828582] [2022-02-10 22:23:57,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:57,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:57,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:57,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:57,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353828582] [2022-02-10 22:23:57,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353828582] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:57,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:57,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:57,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515409987] [2022-02-10 22:23:57,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:57,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:57,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:57,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:57,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:57,454 INFO L87 Difference]: Start difference. First operand 5863 states and 15454 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:58,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:23:58,619 INFO L93 Difference]: Finished difference Result 9101 states and 23586 transitions. [2022-02-10 22:23:58,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-10 22:23:58,619 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:23:58,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:23:58,632 INFO L225 Difference]: With dead ends: 9101 [2022-02-10 22:23:58,632 INFO L226 Difference]: Without dead ends: 8211 [2022-02-10 22:23:58,632 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=702, Invalid=1650, Unknown=0, NotChecked=0, Total=2352 [2022-02-10 22:23:58,633 INFO L934 BasicCegarLoop]: 353 mSDtfsCounter, 1056 mSDsluCounter, 4101 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 4300 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:23:58,633 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1056 Valid, 4300 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:23:58,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8211 states. [2022-02-10 22:23:58,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8211 to 5859. [2022-02-10 22:23:58,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.636223967224309) internal successors, (15443), 5858 states have internal predecessors, (15443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:58,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15443 transitions. [2022-02-10 22:23:58,725 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15443 transitions. Word has length 111 [2022-02-10 22:23:58,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:23:58,726 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15443 transitions. [2022-02-10 22:23:58,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:23:58,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15443 transitions. [2022-02-10 22:23:58,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:23:58,732 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:23:58,732 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:23:58,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-02-10 22:23:58,732 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:23:58,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:23:58,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1860886263, now seen corresponding path program 51 times [2022-02-10 22:23:58,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:23:58,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016268352] [2022-02-10 22:23:58,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:23:58,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:23:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:23:58,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:23:58,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:23:58,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016268352] [2022-02-10 22:23:58,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016268352] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:23:58,920 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:23:58,920 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:23:58,920 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56346991] [2022-02-10 22:23:58,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:23:58,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:23:58,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:23:58,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:23:58,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:23:58,921 INFO L87 Difference]: Start difference. First operand 5859 states and 15443 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:00,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:00,035 INFO L93 Difference]: Finished difference Result 8663 states and 22469 transitions. [2022-02-10 22:24:00,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-10 22:24:00,035 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:00,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:00,048 INFO L225 Difference]: With dead ends: 8663 [2022-02-10 22:24:00,048 INFO L226 Difference]: Without dead ends: 7808 [2022-02-10 22:24:00,048 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=678, Invalid=1578, Unknown=0, NotChecked=0, Total=2256 [2022-02-10 22:24:00,048 INFO L934 BasicCegarLoop]: 347 mSDtfsCounter, 1103 mSDsluCounter, 3637 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:00,048 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1103 Valid, 3848 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:00,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7808 states. [2022-02-10 22:24:00,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7808 to 5911. [2022-02-10 22:24:00,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5911 states, 5910 states have (on average 2.628426395939086) internal successors, (15534), 5910 states have internal predecessors, (15534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:00,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5911 states to 5911 states and 15534 transitions. [2022-02-10 22:24:00,144 INFO L78 Accepts]: Start accepts. Automaton has 5911 states and 15534 transitions. Word has length 111 [2022-02-10 22:24:00,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:00,144 INFO L470 AbstractCegarLoop]: Abstraction has 5911 states and 15534 transitions. [2022-02-10 22:24:00,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand 5911 states and 15534 transitions. [2022-02-10 22:24:00,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:00,151 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:00,151 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:00,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-02-10 22:24:00,151 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:00,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:00,152 INFO L85 PathProgramCache]: Analyzing trace with hash 878017969, now seen corresponding path program 52 times [2022-02-10 22:24:00,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:00,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123945708] [2022-02-10 22:24:00,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:00,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:00,333 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 22:24:00,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:00,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123945708] [2022-02-10 22:24:00,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123945708] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:00,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:00,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:00,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114500652] [2022-02-10 22:24:00,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:00,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:00,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:00,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:00,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:00,334 INFO L87 Difference]: Start difference. First operand 5911 states and 15534 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:01,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:01,478 INFO L93 Difference]: Finished difference Result 8341 states and 21611 transitions. [2022-02-10 22:24:01,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-10 22:24:01,478 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:01,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:01,489 INFO L225 Difference]: With dead ends: 8341 [2022-02-10 22:24:01,489 INFO L226 Difference]: Without dead ends: 7889 [2022-02-10 22:24:01,490 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=628, Invalid=1534, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:24:01,490 INFO L934 BasicCegarLoop]: 346 mSDtfsCounter, 915 mSDsluCounter, 3975 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 4162 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:01,490 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [915 Valid, 4162 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:01,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7889 states. [2022-02-10 22:24:01,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7889 to 5915. [2022-02-10 22:24:01,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5915 states, 5914 states have (on average 2.6278322624281367) internal successors, (15541), 5914 states have internal predecessors, (15541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:01,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5915 states to 5915 states and 15541 transitions. [2022-02-10 22:24:01,581 INFO L78 Accepts]: Start accepts. Automaton has 5915 states and 15541 transitions. Word has length 111 [2022-02-10 22:24:01,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:01,581 INFO L470 AbstractCegarLoop]: Abstraction has 5915 states and 15541 transitions. [2022-02-10 22:24:01,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:01,581 INFO L276 IsEmpty]: Start isEmpty. Operand 5915 states and 15541 transitions. [2022-02-10 22:24:01,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:01,588 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:01,588 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, 1, 1] [2022-02-10 22:24:01,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-02-10 22:24:01,588 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:01,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:01,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1466878383, now seen corresponding path program 53 times [2022-02-10 22:24:01,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:01,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281826755] [2022-02-10 22:24:01,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:01,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:01,773 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 22:24:01,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:01,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281826755] [2022-02-10 22:24:01,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281826755] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:01,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:01,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:01,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480304020] [2022-02-10 22:24:01,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:01,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:01,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:01,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:01,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:01,774 INFO L87 Difference]: Start difference. First operand 5915 states and 15541 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:02,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:02,837 INFO L93 Difference]: Finished difference Result 8115 states and 21093 transitions. [2022-02-10 22:24:02,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-10 22:24:02,837 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:02,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:02,850 INFO L225 Difference]: With dead ends: 8115 [2022-02-10 22:24:02,850 INFO L226 Difference]: Without dead ends: 7694 [2022-02-10 22:24:02,851 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=580, Invalid=1490, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:24:02,851 INFO L934 BasicCegarLoop]: 337 mSDtfsCounter, 802 mSDsluCounter, 3792 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 3979 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:02,851 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [802 Valid, 3979 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:02,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7694 states. [2022-02-10 22:24:02,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7694 to 5927. [2022-02-10 22:24:02,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5927 states, 5926 states have (on average 2.626054674316571) internal successors, (15562), 5926 states have internal predecessors, (15562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:02,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5927 states to 5927 states and 15562 transitions. [2022-02-10 22:24:02,960 INFO L78 Accepts]: Start accepts. Automaton has 5927 states and 15562 transitions. Word has length 111 [2022-02-10 22:24:02,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:02,960 INFO L470 AbstractCegarLoop]: Abstraction has 5927 states and 15562 transitions. [2022-02-10 22:24:02,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:02,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5927 states and 15562 transitions. [2022-02-10 22:24:02,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:02,967 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:02,967 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, 1, 1] [2022-02-10 22:24:02,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-02-10 22:24:02,967 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:02,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:02,967 INFO L85 PathProgramCache]: Analyzing trace with hash -996763019, now seen corresponding path program 54 times [2022-02-10 22:24:02,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:02,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705263786] [2022-02-10 22:24:02,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:02,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:03,158 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 22:24:03,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:03,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705263786] [2022-02-10 22:24:03,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705263786] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:03,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:03,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:03,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868960991] [2022-02-10 22:24:03,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:03,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:03,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:03,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:03,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:03,160 INFO L87 Difference]: Start difference. First operand 5927 states and 15562 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:04,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:04,136 INFO L93 Difference]: Finished difference Result 7964 states and 20697 transitions. [2022-02-10 22:24:04,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:04,137 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:04,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:04,149 INFO L225 Difference]: With dead ends: 7964 [2022-02-10 22:24:04,149 INFO L226 Difference]: Without dead ends: 7636 [2022-02-10 22:24:04,150 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=520, Invalid=1372, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:24:04,150 INFO L934 BasicCegarLoop]: 327 mSDtfsCounter, 701 mSDsluCounter, 3840 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 4020 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:04,150 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [701 Valid, 4020 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:04,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7636 states. [2022-02-10 22:24:04,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7636 to 5931. [2022-02-10 22:24:04,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5931 states, 5930 states have (on average 2.6254637436762227) internal successors, (15569), 5930 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:04,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5931 states to 5931 states and 15569 transitions. [2022-02-10 22:24:04,245 INFO L78 Accepts]: Start accepts. Automaton has 5931 states and 15569 transitions. Word has length 111 [2022-02-10 22:24:04,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:04,245 INFO L470 AbstractCegarLoop]: Abstraction has 5931 states and 15569 transitions. [2022-02-10 22:24:04,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:04,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5931 states and 15569 transitions. [2022-02-10 22:24:04,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:04,252 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:04,252 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:04,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-02-10 22:24:04,252 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:04,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:04,252 INFO L85 PathProgramCache]: Analyzing trace with hash -701160183, now seen corresponding path program 55 times [2022-02-10 22:24:04,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:04,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497149546] [2022-02-10 22:24:04,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:04,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:04,445 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 22:24:04,446 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:04,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497149546] [2022-02-10 22:24:04,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497149546] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:04,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:04,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:04,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939478083] [2022-02-10 22:24:04,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:04,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:04,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:04,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:04,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:04,447 INFO L87 Difference]: Start difference. First operand 5931 states and 15569 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:05,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:05,375 INFO L93 Difference]: Finished difference Result 7875 states and 20467 transitions. [2022-02-10 22:24:05,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:24:05,375 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:05,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:05,388 INFO L225 Difference]: With dead ends: 7875 [2022-02-10 22:24:05,388 INFO L226 Difference]: Without dead ends: 7578 [2022-02-10 22:24:05,388 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=468, Invalid=1254, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:24:05,389 INFO L934 BasicCegarLoop]: 318 mSDtfsCounter, 743 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 3811 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:05,389 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [743 Valid, 3811 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:05,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7578 states. [2022-02-10 22:24:05,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7578 to 5935. [2022-02-10 22:24:05,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5935 states, 5934 states have (on average 2.6248736097067744) internal successors, (15576), 5934 states have internal predecessors, (15576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:05,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 15576 transitions. [2022-02-10 22:24:05,475 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 15576 transitions. Word has length 111 [2022-02-10 22:24:05,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:05,475 INFO L470 AbstractCegarLoop]: Abstraction has 5935 states and 15576 transitions. [2022-02-10 22:24:05,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:05,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 15576 transitions. [2022-02-10 22:24:05,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:05,482 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:05,482 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, 1, 1] [2022-02-10 22:24:05,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-02-10 22:24:05,483 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:05,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:05,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1119341837, now seen corresponding path program 56 times [2022-02-10 22:24:05,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:05,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382740902] [2022-02-10 22:24:05,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:05,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:05,668 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 22:24:05,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:05,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382740902] [2022-02-10 22:24:05,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382740902] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:05,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:05,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:05,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459763245] [2022-02-10 22:24:05,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:05,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:05,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:05,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:05,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:05,669 INFO L87 Difference]: Start difference. First operand 5935 states and 15576 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:06,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:06,708 INFO L93 Difference]: Finished difference Result 7732 states and 20101 transitions. [2022-02-10 22:24:06,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:24:06,708 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:06,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:06,719 INFO L225 Difference]: With dead ends: 7732 [2022-02-10 22:24:06,719 INFO L226 Difference]: Without dead ends: 7469 [2022-02-10 22:24:06,719 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=502, Invalid=1220, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:24:06,720 INFO L934 BasicCegarLoop]: 302 mSDtfsCounter, 727 mSDsluCounter, 3619 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 3797 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:06,720 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 3797 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:06,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7469 states. [2022-02-10 22:24:06,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7469 to 5939. [2022-02-10 22:24:06,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5939 states, 5938 states have (on average 2.6242842707982486) internal successors, (15583), 5938 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:06,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5939 states to 5939 states and 15583 transitions. [2022-02-10 22:24:06,806 INFO L78 Accepts]: Start accepts. Automaton has 5939 states and 15583 transitions. Word has length 111 [2022-02-10 22:24:06,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:06,806 INFO L470 AbstractCegarLoop]: Abstraction has 5939 states and 15583 transitions. [2022-02-10 22:24:06,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:06,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5939 states and 15583 transitions. [2022-02-10 22:24:06,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:06,813 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:06,813 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:06,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-02-10 22:24:06,813 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:06,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:06,813 INFO L85 PathProgramCache]: Analyzing trace with hash 373479597, now seen corresponding path program 57 times [2022-02-10 22:24:06,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:06,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072232781] [2022-02-10 22:24:06,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:06,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:06,993 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 22:24:06,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:06,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072232781] [2022-02-10 22:24:06,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072232781] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:06,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:06,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:06,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305053011] [2022-02-10 22:24:06,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:06,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:06,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:06,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:06,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:06,995 INFO L87 Difference]: Start difference. First operand 5939 states and 15583 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:07,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:07,840 INFO L93 Difference]: Finished difference Result 7703 states and 20019 transitions. [2022-02-10 22:24:07,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:24:07,841 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:07,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:07,851 INFO L225 Difference]: With dead ends: 7703 [2022-02-10 22:24:07,852 INFO L226 Difference]: Without dead ends: 7357 [2022-02-10 22:24:07,852 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=424, Invalid=1136, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:24:07,852 INFO L934 BasicCegarLoop]: 310 mSDtfsCounter, 704 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 3718 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:07,852 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 3718 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:07,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7357 states. [2022-02-10 22:24:07,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7357 to 5859. [2022-02-10 22:24:07,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.6273472174803687) internal successors, (15391), 5858 states have internal predecessors, (15391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:07,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15391 transitions. [2022-02-10 22:24:07,939 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15391 transitions. Word has length 111 [2022-02-10 22:24:07,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:07,939 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15391 transitions. [2022-02-10 22:24:07,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:07,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15391 transitions. [2022-02-10 22:24:07,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:07,946 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:07,946 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:07,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-02-10 22:24:07,946 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:07,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:07,946 INFO L85 PathProgramCache]: Analyzing trace with hash 229024379, now seen corresponding path program 58 times [2022-02-10 22:24:07,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:07,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145066516] [2022-02-10 22:24:07,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:07,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:08,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:08,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:08,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145066516] [2022-02-10 22:24:08,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145066516] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:08,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:08,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:08,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607507653] [2022-02-10 22:24:08,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:08,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:08,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:08,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:08,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:08,123 INFO L87 Difference]: Start difference. First operand 5859 states and 15391 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:09,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:09,178 INFO L93 Difference]: Finished difference Result 8177 states and 21168 transitions. [2022-02-10 22:24:09,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-10 22:24:09,178 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:09,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:09,190 INFO L225 Difference]: With dead ends: 8177 [2022-02-10 22:24:09,191 INFO L226 Difference]: Without dead ends: 7725 [2022-02-10 22:24:09,191 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=653, Invalid=1509, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:24:09,191 INFO L934 BasicCegarLoop]: 337 mSDtfsCounter, 1014 mSDsluCounter, 3679 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 3866 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:09,191 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1014 Valid, 3866 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:09,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7725 states. [2022-02-10 22:24:09,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7725 to 5863. [2022-02-10 22:24:09,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5863 states, 5862 states have (on average 2.626748549982941) internal successors, (15398), 5862 states have internal predecessors, (15398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:09,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 15398 transitions. [2022-02-10 22:24:09,289 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 15398 transitions. Word has length 111 [2022-02-10 22:24:09,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:09,289 INFO L470 AbstractCegarLoop]: Abstraction has 5863 states and 15398 transitions. [2022-02-10 22:24:09,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:09,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 15398 transitions. [2022-02-10 22:24:09,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:09,296 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:09,296 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] [2022-02-10 22:24:09,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-02-10 22:24:09,296 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:09,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:09,296 INFO L85 PathProgramCache]: Analyzing trace with hash 817884793, now seen corresponding path program 59 times [2022-02-10 22:24:09,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:09,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651898714] [2022-02-10 22:24:09,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:09,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:09,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:09,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:09,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651898714] [2022-02-10 22:24:09,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651898714] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:09,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:09,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:09,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784699122] [2022-02-10 22:24:09,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:09,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:09,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:09,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:09,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:09,476 INFO L87 Difference]: Start difference. First operand 5863 states and 15398 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:10,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:10,542 INFO L93 Difference]: Finished difference Result 8031 states and 20870 transitions. [2022-02-10 22:24:10,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-10 22:24:10,543 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:10,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:10,554 INFO L225 Difference]: With dead ends: 8031 [2022-02-10 22:24:10,554 INFO L226 Difference]: Without dead ends: 7610 [2022-02-10 22:24:10,555 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=602, Invalid=1468, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:24:10,555 INFO L934 BasicCegarLoop]: 327 mSDtfsCounter, 776 mSDsluCounter, 3955 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:10,555 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [776 Valid, 4126 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:10,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7610 states. [2022-02-10 22:24:10,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7610 to 5875. [2022-02-10 22:24:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5875 states, 5874 states have (on average 2.6249574395641813) internal successors, (15419), 5874 states have internal predecessors, (15419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:10,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5875 states to 5875 states and 15419 transitions. [2022-02-10 22:24:10,651 INFO L78 Accepts]: Start accepts. Automaton has 5875 states and 15419 transitions. Word has length 111 [2022-02-10 22:24:10,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:10,651 INFO L470 AbstractCegarLoop]: Abstraction has 5875 states and 15419 transitions. [2022-02-10 22:24:10,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:10,651 INFO L276 IsEmpty]: Start isEmpty. Operand 5875 states and 15419 transitions. [2022-02-10 22:24:10,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:10,658 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:10,658 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:10,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-02-10 22:24:10,658 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:10,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:10,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1645756609, now seen corresponding path program 60 times [2022-02-10 22:24:10,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:10,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370011409] [2022-02-10 22:24:10,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:10,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:10,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:10,836 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:10,836 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370011409] [2022-02-10 22:24:10,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370011409] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:10,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:10,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:10,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316753865] [2022-02-10 22:24:10,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:10,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:10,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:10,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:10,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:10,837 INFO L87 Difference]: Start difference. First operand 5875 states and 15419 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:11,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:11,823 INFO L93 Difference]: Finished difference Result 7880 states and 20474 transitions. [2022-02-10 22:24:11,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:11,823 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:11,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:11,836 INFO L225 Difference]: With dead ends: 7880 [2022-02-10 22:24:11,836 INFO L226 Difference]: Without dead ends: 7552 [2022-02-10 22:24:11,836 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=538, Invalid=1354, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:24:11,836 INFO L934 BasicCegarLoop]: 325 mSDtfsCounter, 735 mSDsluCounter, 3955 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 4122 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:11,837 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [735 Valid, 4122 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:11,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7552 states. [2022-02-10 22:24:11,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7552 to 5879. [2022-02-10 22:24:11,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5879 states, 5878 states have (on average 2.6243620279006463) internal successors, (15426), 5878 states have internal predecessors, (15426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:11,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 15426 transitions. [2022-02-10 22:24:11,928 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 15426 transitions. Word has length 111 [2022-02-10 22:24:11,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:11,928 INFO L470 AbstractCegarLoop]: Abstraction has 5879 states and 15426 transitions. [2022-02-10 22:24:11,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:11,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 15426 transitions. [2022-02-10 22:24:11,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:11,934 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:11,934 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, 1, 1] [2022-02-10 22:24:11,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-02-10 22:24:11,934 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:11,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:11,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1350153773, now seen corresponding path program 61 times [2022-02-10 22:24:11,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:11,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268694297] [2022-02-10 22:24:11,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:11,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:12,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:12,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:12,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268694297] [2022-02-10 22:24:12,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268694297] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:12,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:12,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:12,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143100124] [2022-02-10 22:24:12,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:12,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:12,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:12,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:12,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:12,116 INFO L87 Difference]: Start difference. First operand 5879 states and 15426 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:13,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:13,044 INFO L93 Difference]: Finished difference Result 7791 states and 20244 transitions. [2022-02-10 22:24:13,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:24:13,044 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:13,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:13,056 INFO L225 Difference]: With dead ends: 7791 [2022-02-10 22:24:13,056 INFO L226 Difference]: Without dead ends: 7494 [2022-02-10 22:24:13,057 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=482, Invalid=1240, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:24:13,057 INFO L934 BasicCegarLoop]: 316 mSDtfsCounter, 776 mSDsluCounter, 3753 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 3922 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:13,057 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [776 Valid, 3922 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:13,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7494 states. [2022-02-10 22:24:13,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7494 to 5883. [2022-02-10 22:24:13,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 5882 states have (on average 2.623767426045563) internal successors, (15433), 5882 states have internal predecessors, (15433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:13,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 15433 transitions. [2022-02-10 22:24:13,156 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 15433 transitions. Word has length 111 [2022-02-10 22:24:13,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:13,156 INFO L470 AbstractCegarLoop]: Abstraction has 5883 states and 15433 transitions. [2022-02-10 22:24:13,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:13,156 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 15433 transitions. [2022-02-10 22:24:13,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:13,163 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:13,163 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, 1, 1] [2022-02-10 22:24:13,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-02-10 22:24:13,163 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:13,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:13,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1768335427, now seen corresponding path program 62 times [2022-02-10 22:24:13,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:13,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503481024] [2022-02-10 22:24:13,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:13,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:13,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:13,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:13,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503481024] [2022-02-10 22:24:13,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503481024] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:13,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:13,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:13,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470577427] [2022-02-10 22:24:13,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:13,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:13,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:13,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:13,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:13,366 INFO L87 Difference]: Start difference. First operand 5883 states and 15433 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:14,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:14,414 INFO L93 Difference]: Finished difference Result 7672 states and 19936 transitions. [2022-02-10 22:24:14,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:24:14,414 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:14,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:14,425 INFO L225 Difference]: With dead ends: 7672 [2022-02-10 22:24:14,425 INFO L226 Difference]: Without dead ends: 7409 [2022-02-10 22:24:14,425 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=508, Invalid=1214, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:24:14,426 INFO L934 BasicCegarLoop]: 300 mSDtfsCounter, 691 mSDsluCounter, 3519 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:14,426 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [691 Valid, 3688 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:14,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7409 states. [2022-02-10 22:24:14,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7409 to 5887. [2022-02-10 22:24:14,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5887 states, 5886 states have (on average 2.623173632347944) internal successors, (15440), 5886 states have internal predecessors, (15440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:14,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5887 states to 5887 states and 15440 transitions. [2022-02-10 22:24:14,514 INFO L78 Accepts]: Start accepts. Automaton has 5887 states and 15440 transitions. Word has length 111 [2022-02-10 22:24:14,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:14,514 INFO L470 AbstractCegarLoop]: Abstraction has 5887 states and 15440 transitions. [2022-02-10 22:24:14,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:14,514 INFO L276 IsEmpty]: Start isEmpty. Operand 5887 states and 15440 transitions. [2022-02-10 22:24:14,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:14,520 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:14,521 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:14,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-02-10 22:24:14,521 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:14,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:14,521 INFO L85 PathProgramCache]: Analyzing trace with hash -275513993, now seen corresponding path program 63 times [2022-02-10 22:24:14,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:14,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561793077] [2022-02-10 22:24:14,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:14,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:14,694 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 22:24:14,695 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:14,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561793077] [2022-02-10 22:24:14,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561793077] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:14,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:14,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:14,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648190714] [2022-02-10 22:24:14,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:14,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:14,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:14,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:14,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:14,696 INFO L87 Difference]: Start difference. First operand 5887 states and 15440 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:15,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:15,545 INFO L93 Difference]: Finished difference Result 7643 states and 19854 transitions. [2022-02-10 22:24:15,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:24:15,546 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:15,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:15,557 INFO L225 Difference]: With dead ends: 7643 [2022-02-10 22:24:15,558 INFO L226 Difference]: Without dead ends: 7349 [2022-02-10 22:24:15,558 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:24:15,558 INFO L934 BasicCegarLoop]: 308 mSDtfsCounter, 671 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 3962 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:15,558 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [671 Valid, 3962 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:15,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7349 states. [2022-02-10 22:24:15,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7349 to 5859. [2022-02-10 22:24:15,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.626664390576989) internal successors, (15387), 5858 states have internal predecessors, (15387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:15,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15387 transitions. [2022-02-10 22:24:15,648 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15387 transitions. Word has length 111 [2022-02-10 22:24:15,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:15,648 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15387 transitions. [2022-02-10 22:24:15,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:15,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15387 transitions. [2022-02-10 22:24:15,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:15,655 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:15,655 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:15,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-02-10 22:24:15,655 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:15,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:15,655 INFO L85 PathProgramCache]: Analyzing trace with hash -135451231, now seen corresponding path program 64 times [2022-02-10 22:24:15,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:15,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353666427] [2022-02-10 22:24:15,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:15,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:15,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:15,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353666427] [2022-02-10 22:24:15,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353666427] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:15,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:15,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:15,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475492120] [2022-02-10 22:24:15,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:15,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:15,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:15,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:15,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:15,830 INFO L87 Difference]: Start difference. First operand 5859 states and 15387 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:16,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:16,858 INFO L93 Difference]: Finished difference Result 7923 states and 20581 transitions. [2022-02-10 22:24:16,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-10 22:24:16,859 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:16,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:16,871 INFO L225 Difference]: With dead ends: 7923 [2022-02-10 22:24:16,871 INFO L226 Difference]: Without dead ends: 7502 [2022-02-10 22:24:16,871 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=596, Invalid=1384, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:24:16,872 INFO L934 BasicCegarLoop]: 325 mSDtfsCounter, 785 mSDsluCounter, 3657 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 3837 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:16,872 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [785 Valid, 3837 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:16,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7502 states. [2022-02-10 22:24:16,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7502 to 5871. [2022-02-10 22:24:16,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5871 states, 5870 states have (on average 2.624872231686542) internal successors, (15408), 5870 states have internal predecessors, (15408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:16,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5871 states to 5871 states and 15408 transitions. [2022-02-10 22:24:16,969 INFO L78 Accepts]: Start accepts. Automaton has 5871 states and 15408 transitions. Word has length 111 [2022-02-10 22:24:16,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:16,970 INFO L470 AbstractCegarLoop]: Abstraction has 5871 states and 15408 transitions. [2022-02-10 22:24:16,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:16,970 INFO L276 IsEmpty]: Start isEmpty. Operand 5871 states and 15408 transitions. [2022-02-10 22:24:16,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:16,977 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:16,977 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:16,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-02-10 22:24:16,977 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:16,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:16,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1695874663, now seen corresponding path program 65 times [2022-02-10 22:24:16,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:16,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090669861] [2022-02-10 22:24:16,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:16,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:17,170 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 22:24:17,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:17,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090669861] [2022-02-10 22:24:17,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090669861] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:17,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:17,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:17,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046509751] [2022-02-10 22:24:17,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:17,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:17,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:17,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:17,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:17,172 INFO L87 Difference]: Start difference. First operand 5871 states and 15408 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:18,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:18,246 INFO L93 Difference]: Finished difference Result 7820 states and 20317 transitions. [2022-02-10 22:24:18,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:18,246 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:18,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:18,257 INFO L225 Difference]: With dead ends: 7820 [2022-02-10 22:24:18,258 INFO L226 Difference]: Without dead ends: 7492 [2022-02-10 22:24:18,258 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=553, Invalid=1339, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:24:18,258 INFO L934 BasicCegarLoop]: 333 mSDtfsCounter, 747 mSDsluCounter, 3751 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:18,258 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [747 Valid, 3928 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:18,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7492 states. [2022-02-10 22:24:18,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7492 to 5875. [2022-02-10 22:24:18,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5875 states, 5874 states have (on average 2.624276472591079) internal successors, (15415), 5874 states have internal predecessors, (15415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:18,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5875 states to 5875 states and 15415 transitions. [2022-02-10 22:24:18,348 INFO L78 Accepts]: Start accepts. Automaton has 5875 states and 15415 transitions. Word has length 111 [2022-02-10 22:24:18,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:18,348 INFO L470 AbstractCegarLoop]: Abstraction has 5875 states and 15415 transitions. [2022-02-10 22:24:18,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:18,348 INFO L276 IsEmpty]: Start isEmpty. Operand 5875 states and 15415 transitions. [2022-02-10 22:24:18,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:18,354 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:18,354 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, 1, 1] [2022-02-10 22:24:18,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-02-10 22:24:18,354 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:18,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:18,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1991477499, now seen corresponding path program 66 times [2022-02-10 22:24:18,355 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:18,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989966469] [2022-02-10 22:24:18,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:18,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:18,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:18,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:18,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989966469] [2022-02-10 22:24:18,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989966469] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:18,545 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:18,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:18,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086698710] [2022-02-10 22:24:18,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:18,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:18,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:18,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:18,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:18,546 INFO L87 Difference]: Start difference. First operand 5875 states and 15415 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:19,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:19,482 INFO L93 Difference]: Finished difference Result 7731 states and 20087 transitions. [2022-02-10 22:24:19,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:24:19,482 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:19,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:19,493 INFO L225 Difference]: With dead ends: 7731 [2022-02-10 22:24:19,494 INFO L226 Difference]: Without dead ends: 7434 [2022-02-10 22:24:19,494 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=492, Invalid=1230, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:24:19,494 INFO L934 BasicCegarLoop]: 325 mSDtfsCounter, 787 mSDsluCounter, 3793 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 3964 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:19,494 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [787 Valid, 3964 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:19,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7434 states. [2022-02-10 22:24:19,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7434 to 5879. [2022-02-10 22:24:19,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5879 states, 5878 states have (on average 2.6236815243280027) internal successors, (15422), 5878 states have internal predecessors, (15422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:19,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 15422 transitions. [2022-02-10 22:24:19,621 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 15422 transitions. Word has length 111 [2022-02-10 22:24:19,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:19,621 INFO L470 AbstractCegarLoop]: Abstraction has 5879 states and 15422 transitions. [2022-02-10 22:24:19,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:19,621 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 15422 transitions. [2022-02-10 22:24:19,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:19,627 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:19,627 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:19,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-02-10 22:24:19,628 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:19,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:19,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1573295845, now seen corresponding path program 67 times [2022-02-10 22:24:19,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:19,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448625127] [2022-02-10 22:24:19,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:19,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:19,799 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 22:24:19,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:19,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448625127] [2022-02-10 22:24:19,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448625127] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:19,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:19,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:19,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485657798] [2022-02-10 22:24:19,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:19,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:19,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:19,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:19,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:19,800 INFO L87 Difference]: Start difference. First operand 5879 states and 15422 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:20,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:20,893 INFO L93 Difference]: Finished difference Result 7620 states and 19801 transitions. [2022-02-10 22:24:20,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:24:20,893 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:20,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:20,905 INFO L225 Difference]: With dead ends: 7620 [2022-02-10 22:24:20,905 INFO L226 Difference]: Without dead ends: 7357 [2022-02-10 22:24:20,905 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=527, Invalid=1279, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 22:24:20,905 INFO L934 BasicCegarLoop]: 311 mSDtfsCounter, 700 mSDsluCounter, 3796 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 3961 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:20,906 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [700 Valid, 3961 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:20,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7357 states. [2022-02-10 22:24:20,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7357 to 5883. [2022-02-10 22:24:20,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 5882 states have (on average 2.6230873852431147) internal successors, (15429), 5882 states have internal predecessors, (15429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:21,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 15429 transitions. [2022-02-10 22:24:21,001 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 15429 transitions. Word has length 111 [2022-02-10 22:24:21,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:21,001 INFO L470 AbstractCegarLoop]: Abstraction has 5883 states and 15429 transitions. [2022-02-10 22:24:21,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:21,001 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 15429 transitions. [2022-02-10 22:24:21,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:21,008 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:21,008 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:21,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-02-10 22:24:21,008 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:21,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:21,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1228850017, now seen corresponding path program 68 times [2022-02-10 22:24:21,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:21,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387716928] [2022-02-10 22:24:21,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:21,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:21,202 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 22:24:21,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:21,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387716928] [2022-02-10 22:24:21,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387716928] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:21,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:21,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:21,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090638750] [2022-02-10 22:24:21,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:21,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:21,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:21,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:21,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:21,204 INFO L87 Difference]: Start difference. First operand 5883 states and 15429 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:22,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:22,074 INFO L93 Difference]: Finished difference Result 7591 states and 19719 transitions. [2022-02-10 22:24:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:24:22,074 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:22,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:22,086 INFO L225 Difference]: With dead ends: 7591 [2022-02-10 22:24:22,086 INFO L226 Difference]: Without dead ends: 7301 [2022-02-10 22:24:22,086 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=439, Invalid=1121, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:24:22,086 INFO L934 BasicCegarLoop]: 317 mSDtfsCounter, 684 mSDsluCounter, 3845 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 4011 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:22,087 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [684 Valid, 4011 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:22,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7301 states. [2022-02-10 22:24:22,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7301 to 5859. [2022-02-10 22:24:22,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.624615909866849) internal successors, (15375), 5858 states have internal predecessors, (15375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:22,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15375 transitions. [2022-02-10 22:24:22,175 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15375 transitions. Word has length 111 [2022-02-10 22:24:22,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:22,175 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15375 transitions. [2022-02-10 22:24:22,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:22,175 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15375 transitions. [2022-02-10 22:24:22,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:22,183 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:22,183 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, 1, 1] [2022-02-10 22:24:22,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-02-10 22:24:22,183 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:22,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:22,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1070334331, now seen corresponding path program 69 times [2022-02-10 22:24:22,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:22,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408884385] [2022-02-10 22:24:22,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:22,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:22,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:22,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:22,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408884385] [2022-02-10 22:24:22,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408884385] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:22,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:22,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:22,356 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748054692] [2022-02-10 22:24:22,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:22,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:22,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:22,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:22,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:22,356 INFO L87 Difference]: Start difference. First operand 5859 states and 15375 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:23,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:23,288 INFO L93 Difference]: Finished difference Result 7752 states and 20130 transitions. [2022-02-10 22:24:23,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:24:23,288 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:23,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:23,301 INFO L225 Difference]: With dead ends: 7752 [2022-02-10 22:24:23,301 INFO L226 Difference]: Without dead ends: 7424 [2022-02-10 22:24:23,301 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=541, Invalid=1265, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 22:24:23,301 INFO L934 BasicCegarLoop]: 332 mSDtfsCounter, 761 mSDsluCounter, 3691 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 3871 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:23,301 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [761 Valid, 3871 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:23,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7424 states. [2022-02-10 22:24:23,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7424 to 5863. [2022-02-10 22:24:23,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5863 states, 5862 states have (on average 2.6240191061071307) internal successors, (15382), 5862 states have internal predecessors, (15382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:23,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 15382 transitions. [2022-02-10 22:24:23,398 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 15382 transitions. Word has length 111 [2022-02-10 22:24:23,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:23,399 INFO L470 AbstractCegarLoop]: Abstraction has 5863 states and 15382 transitions. [2022-02-10 22:24:23,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:23,399 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 15382 transitions. [2022-02-10 22:24:23,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:23,405 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:23,405 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, 1, 1] [2022-02-10 22:24:23,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-02-10 22:24:23,406 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:23,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:23,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1365937167, now seen corresponding path program 70 times [2022-02-10 22:24:23,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:23,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193740701] [2022-02-10 22:24:23,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:23,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:23,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:23,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:23,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193740701] [2022-02-10 22:24:23,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193740701] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:23,579 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:23,579 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:23,579 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759860638] [2022-02-10 22:24:23,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:23,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:23,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:23,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:23,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:23,580 INFO L87 Difference]: Start difference. First operand 5863 states and 15382 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:24,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:24,519 INFO L93 Difference]: Finished difference Result 7695 states and 19988 transitions. [2022-02-10 22:24:24,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-10 22:24:24,519 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:24,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:24,531 INFO L225 Difference]: With dead ends: 7695 [2022-02-10 22:24:24,531 INFO L226 Difference]: Without dead ends: 7398 [2022-02-10 22:24:24,531 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=502, Invalid=1220, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:24:24,531 INFO L934 BasicCegarLoop]: 323 mSDtfsCounter, 814 mSDsluCounter, 3783 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 3952 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:24,531 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [814 Valid, 3952 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:24,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7398 states. [2022-02-10 22:24:24,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7398 to 5867. [2022-02-10 22:24:24,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5867 states, 5866 states have (on average 2.623423116263212) internal successors, (15389), 5866 states have internal predecessors, (15389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:24,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5867 states to 5867 states and 15389 transitions. [2022-02-10 22:24:24,627 INFO L78 Accepts]: Start accepts. Automaton has 5867 states and 15389 transitions. Word has length 111 [2022-02-10 22:24:24,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:24,627 INFO L470 AbstractCegarLoop]: Abstraction has 5867 states and 15389 transitions. [2022-02-10 22:24:24,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:24,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5867 states and 15389 transitions. [2022-02-10 22:24:24,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:24,634 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:24,634 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, 1, 1] [2022-02-10 22:24:24,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-02-10 22:24:24,634 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:24,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:24,634 INFO L85 PathProgramCache]: Analyzing trace with hash 947755513, now seen corresponding path program 71 times [2022-02-10 22:24:24,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:24,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789387976] [2022-02-10 22:24:24,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:24,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:24,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:24,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:24,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789387976] [2022-02-10 22:24:24,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789387976] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:24,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:24,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:24,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387060042] [2022-02-10 22:24:24,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:24,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:24,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:24,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:24,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:24,810 INFO L87 Difference]: Start difference. First operand 5867 states and 15389 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:25,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:25,940 INFO L93 Difference]: Finished difference Result 7592 states and 19724 transitions. [2022-02-10 22:24:25,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-10 22:24:25,940 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:25,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:25,952 INFO L225 Difference]: With dead ends: 7592 [2022-02-10 22:24:25,952 INFO L226 Difference]: Without dead ends: 7329 [2022-02-10 22:24:25,952 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=548, Invalid=1344, Unknown=0, NotChecked=0, Total=1892 [2022-02-10 22:24:25,952 INFO L934 BasicCegarLoop]: 318 mSDtfsCounter, 791 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 3904 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:25,952 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [791 Valid, 3904 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:25,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2022-02-10 22:24:26,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 5871. [2022-02-10 22:24:26,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5871 states, 5870 states have (on average 2.6228279386712097) internal successors, (15396), 5870 states have internal predecessors, (15396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:26,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5871 states to 5871 states and 15396 transitions. [2022-02-10 22:24:26,054 INFO L78 Accepts]: Start accepts. Automaton has 5871 states and 15396 transitions. Word has length 111 [2022-02-10 22:24:26,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:26,054 INFO L470 AbstractCegarLoop]: Abstraction has 5871 states and 15396 transitions. [2022-02-10 22:24:26,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:26,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5871 states and 15396 transitions. [2022-02-10 22:24:26,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:26,061 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:26,061 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, 1, 1] [2022-02-10 22:24:26,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-02-10 22:24:26,061 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:26,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:26,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1854390349, now seen corresponding path program 72 times [2022-02-10 22:24:26,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:26,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767263898] [2022-02-10 22:24:26,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:26,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:26,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:26,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:26,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767263898] [2022-02-10 22:24:26,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767263898] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:26,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:26,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:26,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622253329] [2022-02-10 22:24:26,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:26,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:26,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:26,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:26,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:26,233 INFO L87 Difference]: Start difference. First operand 5871 states and 15396 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:27,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:27,079 INFO L93 Difference]: Finished difference Result 7563 states and 19642 transitions. [2022-02-10 22:24:27,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:24:27,079 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:27,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:27,091 INFO L225 Difference]: With dead ends: 7563 [2022-02-10 22:24:27,091 INFO L226 Difference]: Without dead ends: 7285 [2022-02-10 22:24:27,092 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=444, Invalid=1116, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:24:27,092 INFO L934 BasicCegarLoop]: 323 mSDtfsCounter, 775 mSDsluCounter, 3768 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 3937 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:27,092 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [775 Valid, 3937 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:27,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7285 states. [2022-02-10 22:24:27,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7285 to 5859. [2022-02-10 22:24:27,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.6239330829634686) internal successors, (15371), 5858 states have internal predecessors, (15371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15371 transitions. [2022-02-10 22:24:27,197 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15371 transitions. Word has length 111 [2022-02-10 22:24:27,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:27,197 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15371 transitions. [2022-02-10 22:24:27,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:27,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15371 transitions. [2022-02-10 22:24:27,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:27,204 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:27,204 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, 1, 1] [2022-02-10 22:24:27,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-02-10 22:24:27,204 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:27,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:27,205 INFO L85 PathProgramCache]: Analyzing trace with hash 996769185, now seen corresponding path program 73 times [2022-02-10 22:24:27,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:27,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710964080] [2022-02-10 22:24:27,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:27,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:27,379 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 22:24:27,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:27,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710964080] [2022-02-10 22:24:27,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710964080] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:27,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:27,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:27,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081018371] [2022-02-10 22:24:27,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:27,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:27,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:27,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:27,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:27,380 INFO L87 Difference]: Start difference. First operand 5859 states and 15371 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:28,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:28,244 INFO L93 Difference]: Finished difference Result 7651 states and 19867 transitions. [2022-02-10 22:24:28,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-10 22:24:28,245 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:28,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:28,256 INFO L225 Difference]: With dead ends: 7651 [2022-02-10 22:24:28,256 INFO L226 Difference]: Without dead ends: 7354 [2022-02-10 22:24:28,257 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=484, Invalid=1156, Unknown=0, NotChecked=0, Total=1640 [2022-02-10 22:24:28,257 INFO L934 BasicCegarLoop]: 323 mSDtfsCounter, 826 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 3724 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:28,257 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [826 Valid, 3724 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:28,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7354 states. [2022-02-10 22:24:28,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7354 to 5863. [2022-02-10 22:24:28,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5863 states, 5862 states have (on average 2.623336745138178) internal successors, (15378), 5862 states have internal predecessors, (15378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:28,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 15378 transitions. [2022-02-10 22:24:28,343 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 15378 transitions. Word has length 111 [2022-02-10 22:24:28,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:28,343 INFO L470 AbstractCegarLoop]: Abstraction has 5863 states and 15378 transitions. [2022-02-10 22:24:28,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:28,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 15378 transitions. [2022-02-10 22:24:28,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:28,350 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:28,350 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:28,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-02-10 22:24:28,350 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:28,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:28,350 INFO L85 PathProgramCache]: Analyzing trace with hash 578587531, now seen corresponding path program 74 times [2022-02-10 22:24:28,350 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:28,350 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265472234] [2022-02-10 22:24:28,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:28,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:28,526 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 22:24:28,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:28,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265472234] [2022-02-10 22:24:28,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265472234] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:28,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:28,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:28,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737136213] [2022-02-10 22:24:28,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:28,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:28,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:28,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:28,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:28,527 INFO L87 Difference]: Start difference. First operand 5863 states and 15378 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:29,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:29,663 INFO L93 Difference]: Finished difference Result 7572 states and 19669 transitions. [2022-02-10 22:24:29,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-10 22:24:29,663 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:29,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:29,674 INFO L225 Difference]: With dead ends: 7572 [2022-02-10 22:24:29,674 INFO L226 Difference]: Without dead ends: 7309 [2022-02-10 22:24:29,674 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=571, Invalid=1409, Unknown=0, NotChecked=0, Total=1980 [2022-02-10 22:24:29,675 INFO L934 BasicCegarLoop]: 327 mSDtfsCounter, 741 mSDsluCounter, 3940 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 4106 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:29,675 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [741 Valid, 4106 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:24:29,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7309 states. [2022-02-10 22:24:29,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7309 to 5867. [2022-02-10 22:24:29,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5867 states, 5866 states have (on average 2.6227412205932494) internal successors, (15385), 5866 states have internal predecessors, (15385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:29,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5867 states to 5867 states and 15385 transitions. [2022-02-10 22:24:29,764 INFO L78 Accepts]: Start accepts. Automaton has 5867 states and 15385 transitions. Word has length 111 [2022-02-10 22:24:29,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:29,764 INFO L470 AbstractCegarLoop]: Abstraction has 5867 states and 15385 transitions. [2022-02-10 22:24:29,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:29,764 INFO L276 IsEmpty]: Start isEmpty. Operand 5867 states and 15385 transitions. [2022-02-10 22:24:29,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:29,771 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:29,771 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, 1, 1] [2022-02-10 22:24:29,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-02-10 22:24:29,771 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:29,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:29,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2071408965, now seen corresponding path program 75 times [2022-02-10 22:24:29,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:29,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247479874] [2022-02-10 22:24:29,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:29,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:29,941 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 22:24:29,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:29,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247479874] [2022-02-10 22:24:29,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247479874] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:29,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:29,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:29,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189079122] [2022-02-10 22:24:29,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:29,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:29,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:29,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:29,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:29,942 INFO L87 Difference]: Start difference. First operand 5867 states and 15385 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:30,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:30,798 INFO L93 Difference]: Finished difference Result 7543 states and 19587 transitions. [2022-02-10 22:24:30,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-10 22:24:30,799 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:30,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:30,810 INFO L225 Difference]: With dead ends: 7543 [2022-02-10 22:24:30,810 INFO L226 Difference]: Without dead ends: 7269 [2022-02-10 22:24:30,811 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=449, Invalid=1111, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:24:30,811 INFO L934 BasicCegarLoop]: 324 mSDtfsCounter, 808 mSDsluCounter, 3528 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 3707 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:30,811 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [808 Valid, 3707 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:30,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7269 states. [2022-02-10 22:24:30,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7269 to 5859. [2022-02-10 22:24:30,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.6232502560600888) internal successors, (15367), 5858 states have internal predecessors, (15367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:30,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15367 transitions. [2022-02-10 22:24:30,904 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15367 transitions. Word has length 111 [2022-02-10 22:24:30,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:30,905 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15367 transitions. [2022-02-10 22:24:30,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:30,905 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15367 transitions. [2022-02-10 22:24:30,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:30,911 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:30,911 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:30,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-02-10 22:24:30,911 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:30,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:30,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1904461503, now seen corresponding path program 76 times [2022-02-10 22:24:30,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:30,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238094181] [2022-02-10 22:24:30,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:30,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:31,088 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 22:24:31,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:31,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238094181] [2022-02-10 22:24:31,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238094181] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:31,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:31,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:31,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433483041] [2022-02-10 22:24:31,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:31,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:31,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:31,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:31,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:31,090 INFO L87 Difference]: Start difference. First operand 5859 states and 15367 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:32,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:32,280 INFO L93 Difference]: Finished difference Result 7552 states and 19614 transitions. [2022-02-10 22:24:32,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-10 22:24:32,280 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:32,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:32,290 INFO L225 Difference]: With dead ends: 7552 [2022-02-10 22:24:32,290 INFO L226 Difference]: Without dead ends: 7289 [2022-02-10 22:24:32,290 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=596, Invalid=1474, Unknown=0, NotChecked=0, Total=2070 [2022-02-10 22:24:32,290 INFO L934 BasicCegarLoop]: 328 mSDtfsCounter, 845 mSDsluCounter, 3571 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 3751 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:32,290 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [845 Valid, 3751 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:32,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7289 states. [2022-02-10 22:24:32,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7289 to 5863. [2022-02-10 22:24:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5863 states, 5862 states have (on average 2.6226543841692256) internal successors, (15374), 5862 states have internal predecessors, (15374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:32,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 15374 transitions. [2022-02-10 22:24:32,372 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 15374 transitions. Word has length 111 [2022-02-10 22:24:32,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:32,372 INFO L470 AbstractCegarLoop]: Abstraction has 5863 states and 15374 transitions. [2022-02-10 22:24:32,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:32,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 15374 transitions. [2022-02-10 22:24:32,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:32,378 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:32,378 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:32,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-02-10 22:24:32,379 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:32,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:32,379 INFO L85 PathProgramCache]: Analyzing trace with hash -411640069, now seen corresponding path program 77 times [2022-02-10 22:24:32,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:32,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276662545] [2022-02-10 22:24:32,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:32,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:32,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:32,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:32,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276662545] [2022-02-10 22:24:32,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276662545] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:32,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:32,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:32,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707874877] [2022-02-10 22:24:32,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:32,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:32,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:32,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:32,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:32,552 INFO L87 Difference]: Start difference. First operand 5863 states and 15374 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:33,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:33,354 INFO L93 Difference]: Finished difference Result 7550 states and 19600 transitions. [2022-02-10 22:24:33,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-10 22:24:33,355 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:33,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:33,365 INFO L225 Difference]: With dead ends: 7550 [2022-02-10 22:24:33,365 INFO L226 Difference]: Without dead ends: 7280 [2022-02-10 22:24:33,365 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=425, Invalid=1057, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:24:33,365 INFO L934 BasicCegarLoop]: 323 mSDtfsCounter, 829 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 3439 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:33,365 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [829 Valid, 3439 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:33,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7280 states. [2022-02-10 22:24:33,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7280 to 5859. [2022-02-10 22:24:33,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.622567429156709) internal successors, (15363), 5858 states have internal predecessors, (15363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:33,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15363 transitions. [2022-02-10 22:24:33,442 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15363 transitions. Word has length 111 [2022-02-10 22:24:33,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:33,443 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15363 transitions. [2022-02-10 22:24:33,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:33,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15363 transitions. [2022-02-10 22:24:33,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-10 22:24:33,448 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:33,448 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, 1, 1] [2022-02-10 22:24:33,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-02-10 22:24:33,448 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:33,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:33,449 INFO L85 PathProgramCache]: Analyzing trace with hash -13813855, now seen corresponding path program 78 times [2022-02-10 22:24:33,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:33,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637233977] [2022-02-10 22:24:33,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:33,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:33,643 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 22:24:33,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:33,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637233977] [2022-02-10 22:24:33,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637233977] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:33,643 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:33,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:24:33,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930210400] [2022-02-10 22:24:33,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:33,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:24:33,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:33,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:24:33,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:24:33,644 INFO L87 Difference]: Start difference. First operand 5859 states and 15363 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:34,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:34,823 INFO L93 Difference]: Finished difference Result 7508 states and 19493 transitions. [2022-02-10 22:24:34,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-10 22:24:34,823 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-02-10 22:24:34,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:34,835 INFO L225 Difference]: With dead ends: 7508 [2022-02-10 22:24:34,835 INFO L226 Difference]: Without dead ends: 7109 [2022-02-10 22:24:34,835 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=658, Invalid=1504, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 22:24:34,836 INFO L934 BasicCegarLoop]: 326 mSDtfsCounter, 1030 mSDsluCounter, 3586 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 3763 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:34,836 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 3763 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:24:34,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7109 states. [2022-02-10 22:24:34,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7109 to 5723. [2022-02-10 22:24:34,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5723 states, 5722 states have (on average 2.638413142257952) internal successors, (15097), 5722 states have internal predecessors, (15097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:34,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5723 states to 5723 states and 15097 transitions. [2022-02-10 22:24:34,927 INFO L78 Accepts]: Start accepts. Automaton has 5723 states and 15097 transitions. Word has length 111 [2022-02-10 22:24:34,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:34,927 INFO L470 AbstractCegarLoop]: Abstraction has 5723 states and 15097 transitions. [2022-02-10 22:24:34,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:34,927 INFO L276 IsEmpty]: Start isEmpty. Operand 5723 states and 15097 transitions. [2022-02-10 22:24:34,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-02-10 22:24:34,933 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:34,933 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:34,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-02-10 22:24:34,934 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:34,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:34,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1010156423, now seen corresponding path program 1 times [2022-02-10 22:24:34,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:34,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905589750] [2022-02-10 22:24:34,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:34,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:34,947 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 22:24:34,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:34,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905589750] [2022-02-10 22:24:34,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905589750] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:34,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:34,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:24:34,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769371537] [2022-02-10 22:24:34,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:34,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:24:34,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:34,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:24:34,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:24:34,949 INFO L87 Difference]: Start difference. First operand 5723 states and 15097 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:34,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:34,972 INFO L93 Difference]: Finished difference Result 5669 states and 14897 transitions. [2022-02-10 22:24:34,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:24:34,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-02-10 22:24:34,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:34,980 INFO L225 Difference]: With dead ends: 5669 [2022-02-10 22:24:34,980 INFO L226 Difference]: Without dead ends: 5563 [2022-02-10 22:24:34,980 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 22:24:34,981 INFO L934 BasicCegarLoop]: 144 mSDtfsCounter, 11 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:34,981 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 271 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:24:34,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5563 states. [2022-02-10 22:24:35,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5563 to 5563. [2022-02-10 22:24:35,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5563 states, 5562 states have (on average 2.6361021215390146) internal successors, (14662), 5562 states have internal predecessors, (14662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:35,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5563 states to 5563 states and 14662 transitions. [2022-02-10 22:24:35,065 INFO L78 Accepts]: Start accepts. Automaton has 5563 states and 14662 transitions. Word has length 113 [2022-02-10 22:24:35,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:35,065 INFO L470 AbstractCegarLoop]: Abstraction has 5563 states and 14662 transitions. [2022-02-10 22:24:35,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:35,065 INFO L276 IsEmpty]: Start isEmpty. Operand 5563 states and 14662 transitions. [2022-02-10 22:24:35,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:24:35,071 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:35,071 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:35,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-02-10 22:24:35,072 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:35,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:35,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1862970063, now seen corresponding path program 1 times [2022-02-10 22:24:35,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:35,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400456977] [2022-02-10 22:24:35,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:35,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:35,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:35,651 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:35,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400456977] [2022-02-10 22:24:35,651 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400456977] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:35,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:35,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:24:35,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034220547] [2022-02-10 22:24:35,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:35,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:24:35,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:35,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:24:35,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:24:35,652 INFO L87 Difference]: Start difference. First operand 5563 states and 14662 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:44,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:45,000 INFO L93 Difference]: Finished difference Result 6672 states and 17462 transitions. [2022-02-10 22:24:45,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-10 22:24:45,000 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:24:45,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:45,008 INFO L225 Difference]: With dead ends: 6672 [2022-02-10 22:24:45,008 INFO L226 Difference]: Without dead ends: 5502 [2022-02-10 22:24:45,009 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2814 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=3221, Invalid=8769, Unknown=0, NotChecked=0, Total=11990 [2022-02-10 22:24:45,009 INFO L934 BasicCegarLoop]: 625 mSDtfsCounter, 1916 mSDsluCounter, 11103 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1916 SdHoareTripleChecker+Valid, 11415 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:45,009 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1916 Valid, 11415 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-10 22:24:45,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5502 states. [2022-02-10 22:24:45,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5502 to 5366. [2022-02-10 22:24:45,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 5365 states have (on average 2.639888164026095) internal successors, (14163), 5365 states have internal predecessors, (14163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:45,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 14163 transitions. [2022-02-10 22:24:45,081 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 14163 transitions. Word has length 137 [2022-02-10 22:24:45,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:45,081 INFO L470 AbstractCegarLoop]: Abstraction has 5366 states and 14163 transitions. [2022-02-10 22:24:45,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:45,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 14163 transitions. [2022-02-10 22:24:45,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:24:45,087 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:45,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:45,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-02-10 22:24:45,088 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:45,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:45,088 INFO L85 PathProgramCache]: Analyzing trace with hash 298409985, now seen corresponding path program 2 times [2022-02-10 22:24:45,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:45,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764308121] [2022-02-10 22:24:45,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:45,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:45,618 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 22:24:45,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:45,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764308121] [2022-02-10 22:24:45,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764308121] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:45,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:45,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:24:45,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186988843] [2022-02-10 22:24:45,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:45,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:24:45,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:45,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:24:45,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:24:45,620 INFO L87 Difference]: Start difference. First operand 5366 states and 14163 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:55,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:55,359 INFO L93 Difference]: Finished difference Result 7488 states and 19502 transitions. [2022-02-10 22:24:55,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-02-10 22:24:55,359 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:24:55,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:55,368 INFO L225 Difference]: With dead ends: 7488 [2022-02-10 22:24:55,369 INFO L226 Difference]: Without dead ends: 6515 [2022-02-10 22:24:55,388 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2563 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=2900, Invalid=8230, Unknown=0, NotChecked=0, Total=11130 [2022-02-10 22:24:55,388 INFO L934 BasicCegarLoop]: 607 mSDtfsCounter, 2043 mSDsluCounter, 10950 mSDsCounter, 0 mSdLazyCounter, 2082 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 11267 SdHoareTripleChecker+Invalid, 2085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:55,388 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2043 Valid, 11267 Invalid, 2085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2082 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-10 22:24:55,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6515 states. [2022-02-10 22:24:55,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6515 to 5378. [2022-02-10 22:24:55,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 2.637902175934536) internal successors, (14184), 5377 states have internal predecessors, (14184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:55,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 14184 transitions. [2022-02-10 22:24:55,458 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 14184 transitions. Word has length 137 [2022-02-10 22:24:55,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:55,459 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 14184 transitions. [2022-02-10 22:24:55,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:55,459 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 14184 transitions. [2022-02-10 22:24:55,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:24:55,465 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:55,465 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:55,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-02-10 22:24:55,465 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:55,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:55,466 INFO L85 PathProgramCache]: Analyzing trace with hash 69628501, now seen corresponding path program 3 times [2022-02-10 22:24:55,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:55,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908801095] [2022-02-10 22:24:55,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:55,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:56,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:24:56,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:56,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908801095] [2022-02-10 22:24:56,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908801095] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:24:56,032 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:24:56,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:24:56,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992973893] [2022-02-10 22:24:56,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:24:56,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:24:56,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:56,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:24:56,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:24:56,033 INFO L87 Difference]: Start difference. First operand 5378 states and 14184 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:13,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:13,942 INFO L93 Difference]: Finished difference Result 7042 states and 18372 transitions. [2022-02-10 22:25:13,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-10 22:25:13,943 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:25:13,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:13,951 INFO L225 Difference]: With dead ends: 7042 [2022-02-10 22:25:13,951 INFO L226 Difference]: Without dead ends: 6193 [2022-02-10 22:25:13,952 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2182 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=2321, Invalid=7185, Unknown=0, NotChecked=0, Total=9506 [2022-02-10 22:25:13,952 INFO L934 BasicCegarLoop]: 595 mSDtfsCounter, 1531 mSDsluCounter, 9253 mSDsCounter, 0 mSdLazyCounter, 1921 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 9619 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:13,952 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1531 Valid, 9619 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1921 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:25:13,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6193 states. [2022-02-10 22:25:14,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6193 to 5434. [2022-02-10 22:25:14,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5433 states have (on average 2.6294864715626725) internal successors, (14286), 5433 states have internal predecessors, (14286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:14,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 14286 transitions. [2022-02-10 22:25:14,026 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 14286 transitions. Word has length 137 [2022-02-10 22:25:14,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:14,026 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 14286 transitions. [2022-02-10 22:25:14,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:14,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 14286 transitions. [2022-02-10 22:25:14,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:25:14,033 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:14,033 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:14,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-02-10 22:25:14,033 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:14,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:14,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1486434563, now seen corresponding path program 4 times [2022-02-10 22:25:14,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:14,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293287445] [2022-02-10 22:25:14,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:14,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:14,543 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 22:25:14,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:14,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293287445] [2022-02-10 22:25:14,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293287445] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:14,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:14,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:25:14,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830446430] [2022-02-10 22:25:14,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:14,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:25:14,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:14,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:25:14,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:25:14,544 INFO L87 Difference]: Start difference. First operand 5434 states and 14286 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:19,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:19,974 INFO L93 Difference]: Finished difference Result 6608 states and 17214 transitions. [2022-02-10 22:25:19,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-10 22:25:19,974 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:25:19,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:19,982 INFO L225 Difference]: With dead ends: 6608 [2022-02-10 22:25:19,982 INFO L226 Difference]: Without dead ends: 6162 [2022-02-10 22:25:19,983 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1986 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=2057, Invalid=6685, Unknown=0, NotChecked=0, Total=8742 [2022-02-10 22:25:19,983 INFO L934 BasicCegarLoop]: 577 mSDtfsCounter, 1381 mSDsluCounter, 9783 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 10115 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:19,983 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1381 Valid, 10115 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:25:19,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6162 states. [2022-02-10 22:25:20,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6162 to 5438. [2022-02-10 22:25:20,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 2.6288394335111276) internal successors, (14293), 5437 states have internal predecessors, (14293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:20,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 14293 transitions. [2022-02-10 22:25:20,053 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 14293 transitions. Word has length 137 [2022-02-10 22:25:20,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:20,053 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 14293 transitions. [2022-02-10 22:25:20,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:20,053 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 14293 transitions. [2022-02-10 22:25:20,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:25:20,059 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:20,059 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:20,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-02-10 22:25:20,059 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:20,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:20,059 INFO L85 PathProgramCache]: Analyzing trace with hash -897574149, now seen corresponding path program 5 times [2022-02-10 22:25:20,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:20,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089631014] [2022-02-10 22:25:20,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:20,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:20,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:20,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:20,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089631014] [2022-02-10 22:25:20,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089631014] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:20,570 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:20,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:25:20,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127356161] [2022-02-10 22:25:20,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:20,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:25:20,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:20,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:25:20,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:25:20,571 INFO L87 Difference]: Start difference. First operand 5438 states and 14293 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:25,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:25,687 INFO L93 Difference]: Finished difference Result 6370 states and 16667 transitions. [2022-02-10 22:25:25,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-10 22:25:25,687 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:25:25,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:25,694 INFO L225 Difference]: With dead ends: 6370 [2022-02-10 22:25:25,695 INFO L226 Difference]: Without dead ends: 5955 [2022-02-10 22:25:25,695 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1701 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1807, Invalid=6203, Unknown=0, NotChecked=0, Total=8010 [2022-02-10 22:25:25,696 INFO L934 BasicCegarLoop]: 569 mSDtfsCounter, 1134 mSDsluCounter, 10108 mSDsCounter, 0 mSdLazyCounter, 2050 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 10430 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:25,696 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 10430 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2050 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:25:25,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5955 states. [2022-02-10 22:25:25,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5955 to 5450. [2022-02-10 22:25:25,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5449 states have (on average 2.6269040190860706) internal successors, (14314), 5449 states have internal predecessors, (14314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:25,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14314 transitions. [2022-02-10 22:25:25,767 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14314 transitions. Word has length 137 [2022-02-10 22:25:25,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:25,768 INFO L470 AbstractCegarLoop]: Abstraction has 5450 states and 14314 transitions. [2022-02-10 22:25:25,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:25,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14314 transitions. [2022-02-10 22:25:25,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:25:25,774 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:25,774 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:25,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-02-10 22:25:25,774 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:25,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:25,774 INFO L85 PathProgramCache]: Analyzing trace with hash 933751745, now seen corresponding path program 6 times [2022-02-10 22:25:25,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:25,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088453682] [2022-02-10 22:25:25,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:25,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:26,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:26,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:26,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088453682] [2022-02-10 22:25:26,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088453682] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:26,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:26,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:25:26,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555178658] [2022-02-10 22:25:26,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:26,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:25:26,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:26,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:25:26,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:25:26,262 INFO L87 Difference]: Start difference. First operand 5450 states and 14314 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:31,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:31,465 INFO L93 Difference]: Finished difference Result 6215 states and 16260 transitions. [2022-02-10 22:25:31,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 22:25:31,465 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:25:31,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:31,473 INFO L225 Difference]: With dead ends: 6215 [2022-02-10 22:25:31,473 INFO L226 Difference]: Without dead ends: 5893 [2022-02-10 22:25:31,474 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1478, Invalid=5164, Unknown=0, NotChecked=0, Total=6642 [2022-02-10 22:25:31,475 INFO L934 BasicCegarLoop]: 560 mSDtfsCounter, 1117 mSDsluCounter, 9531 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 9874 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:31,475 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 9874 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1909 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:25:31,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2022-02-10 22:25:31,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 5454. [2022-02-10 22:25:31,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6262607738859343) internal successors, (14321), 5453 states have internal predecessors, (14321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:31,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14321 transitions. [2022-02-10 22:25:31,571 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14321 transitions. Word has length 137 [2022-02-10 22:25:31,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:31,571 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14321 transitions. [2022-02-10 22:25:31,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:31,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14321 transitions. [2022-02-10 22:25:31,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:25:31,577 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:31,577 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:31,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-02-10 22:25:31,577 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:31,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:31,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1229354581, now seen corresponding path program 7 times [2022-02-10 22:25:31,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:31,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360326019] [2022-02-10 22:25:31,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:31,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:32,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:32,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360326019] [2022-02-10 22:25:32,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360326019] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:32,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:32,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:25:32,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030720709] [2022-02-10 22:25:32,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:32,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:25:32,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:32,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:25:32,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:25:32,109 INFO L87 Difference]: Start difference. First operand 5454 states and 14321 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:36,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:36,879 INFO L93 Difference]: Finished difference Result 6122 states and 16019 transitions. [2022-02-10 22:25:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:25:36,879 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:25:36,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:36,888 INFO L225 Difference]: With dead ends: 6122 [2022-02-10 22:25:36,888 INFO L226 Difference]: Without dead ends: 5831 [2022-02-10 22:25:36,889 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 990 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1203, Invalid=4199, Unknown=0, NotChecked=0, Total=5402 [2022-02-10 22:25:36,889 INFO L934 BasicCegarLoop]: 552 mSDtfsCounter, 1032 mSDsluCounter, 9113 mSDsCounter, 0 mSdLazyCounter, 1853 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 9473 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:36,889 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 9473 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1853 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:25:36,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5831 states. [2022-02-10 22:25:36,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5831 to 5458. [2022-02-10 22:25:36,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6256184716877407) internal successors, (14328), 5457 states have internal predecessors, (14328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:36,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14328 transitions. [2022-02-10 22:25:36,967 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14328 transitions. Word has length 137 [2022-02-10 22:25:36,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:36,967 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14328 transitions. [2022-02-10 22:25:36,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:36,967 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14328 transitions. [2022-02-10 22:25:36,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:25:36,973 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:36,973 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:36,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-02-10 22:25:36,973 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:36,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:36,974 INFO L85 PathProgramCache]: Analyzing trace with hash 811172927, now seen corresponding path program 8 times [2022-02-10 22:25:36,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:36,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325296592] [2022-02-10 22:25:36,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:36,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:37,505 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 22:25:37,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:37,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325296592] [2022-02-10 22:25:37,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325296592] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:37,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:37,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:25:37,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001335319] [2022-02-10 22:25:37,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:37,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:25:37,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:37,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:25:37,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:25:37,506 INFO L87 Difference]: Start difference. First operand 5458 states and 14328 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:41,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:41,272 INFO L93 Difference]: Finished difference Result 5967 states and 15620 transitions. [2022-02-10 22:25:41,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:25:41,273 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:25:41,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:41,280 INFO L225 Difference]: With dead ends: 5967 [2022-02-10 22:25:41,280 INFO L226 Difference]: Without dead ends: 5710 [2022-02-10 22:25:41,280 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=953, Invalid=2829, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:25:41,281 INFO L934 BasicCegarLoop]: 537 mSDtfsCounter, 1024 mSDsluCounter, 9613 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 9958 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:41,281 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1024 Valid, 9958 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:25:41,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5710 states. [2022-02-10 22:25:41,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5710 to 5462. [2022-02-10 22:25:41,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.624977110419337) internal successors, (14335), 5461 states have internal predecessors, (14335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:41,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14335 transitions. [2022-02-10 22:25:41,347 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14335 transitions. Word has length 137 [2022-02-10 22:25:41,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:41,347 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14335 transitions. [2022-02-10 22:25:41,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:41,347 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14335 transitions. [2022-02-10 22:25:41,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:25:41,353 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:41,353 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:41,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-02-10 22:25:41,353 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:41,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:41,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1990972935, now seen corresponding path program 9 times [2022-02-10 22:25:41,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:41,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109186598] [2022-02-10 22:25:41,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:41,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:41,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:41,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:41,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:41,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109186598] [2022-02-10 22:25:41,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109186598] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:41,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:41,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:25:41,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561657817] [2022-02-10 22:25:41,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:41,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:25:41,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:41,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:25:41,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:25:41,907 INFO L87 Difference]: Start difference. First operand 5462 states and 14335 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:48,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:48,095 INFO L93 Difference]: Finished difference Result 5970 states and 15622 transitions. [2022-02-10 22:25:48,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:25:48,095 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:25:48,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:48,104 INFO L225 Difference]: With dead ends: 5970 [2022-02-10 22:25:48,104 INFO L226 Difference]: Without dead ends: 5630 [2022-02-10 22:25:48,104 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=975, Invalid=3315, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:25:48,105 INFO L934 BasicCegarLoop]: 545 mSDtfsCounter, 974 mSDsluCounter, 8444 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 8826 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:48,105 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [974 Valid, 8826 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:25:48,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5630 states. [2022-02-10 22:25:48,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5630 to 5382. [2022-02-10 22:25:48,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 2.6372421482995727) internal successors, (14191), 5381 states have internal predecessors, (14191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:48,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 14191 transitions. [2022-02-10 22:25:48,171 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 14191 transitions. Word has length 137 [2022-02-10 22:25:48,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:48,171 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 14191 transitions. [2022-02-10 22:25:48,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:48,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 14191 transitions. [2022-02-10 22:25:48,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:25:48,176 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:48,176 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:48,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-02-10 22:25:48,176 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:48,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:48,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1791231757, now seen corresponding path program 10 times [2022-02-10 22:25:48,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:48,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347092343] [2022-02-10 22:25:48,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:48,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:48,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:48,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:48,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347092343] [2022-02-10 22:25:48,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347092343] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:48,743 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:48,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:25:48,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745412971] [2022-02-10 22:25:48,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:48,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:25:48,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:48,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:25:48,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:25:48,744 INFO L87 Difference]: Start difference. First operand 5382 states and 14191 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:57,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:57,258 INFO L93 Difference]: Finished difference Result 6398 states and 16754 transitions. [2022-02-10 22:25:57,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-10 22:25:57,258 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:25:57,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:57,265 INFO L225 Difference]: With dead ends: 6398 [2022-02-10 22:25:57,266 INFO L226 Difference]: Without dead ends: 5476 [2022-02-10 22:25:57,266 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2331 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=2600, Invalid=7702, Unknown=0, NotChecked=0, Total=10302 [2022-02-10 22:25:57,266 INFO L934 BasicCegarLoop]: 607 mSDtfsCounter, 1482 mSDsluCounter, 10342 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 10675 SdHoareTripleChecker+Invalid, 2016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:57,266 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1482 Valid, 10675 Invalid, 2016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:25:57,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5476 states. [2022-02-10 22:25:57,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5476 to 5340. [2022-02-10 22:25:57,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5340 states, 5339 states have (on average 2.640194793032403) internal successors, (14096), 5339 states have internal predecessors, (14096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:57,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5340 states to 5340 states and 14096 transitions. [2022-02-10 22:25:57,338 INFO L78 Accepts]: Start accepts. Automaton has 5340 states and 14096 transitions. Word has length 137 [2022-02-10 22:25:57,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:57,338 INFO L470 AbstractCegarLoop]: Abstraction has 5340 states and 14096 transitions. [2022-02-10 22:25:57,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:57,338 INFO L276 IsEmpty]: Start isEmpty. Operand 5340 states and 14096 transitions. [2022-02-10 22:25:57,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:25:57,344 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:57,344 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:57,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-02-10 22:25:57,344 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:57,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:57,344 INFO L85 PathProgramCache]: Analyzing trace with hash 66333161, now seen corresponding path program 11 times [2022-02-10 22:25:57,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:57,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944306761] [2022-02-10 22:25:57,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:57,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:57,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:25:57,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:57,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944306761] [2022-02-10 22:25:57,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944306761] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:25:57,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:25:57,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:25:57,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187013780] [2022-02-10 22:25:57,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:25:57,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:25:57,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:57,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:25:57,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:25:57,833 INFO L87 Difference]: Start difference. First operand 5340 states and 14096 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:07,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:07,566 INFO L93 Difference]: Finished difference Result 7586 states and 19772 transitions. [2022-02-10 22:26:07,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-02-10 22:26:07,566 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:26:07,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:07,574 INFO L225 Difference]: With dead ends: 7586 [2022-02-10 22:26:07,574 INFO L226 Difference]: Without dead ends: 6613 [2022-02-10 22:26:07,575 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2544 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=2923, Invalid=8207, Unknown=0, NotChecked=0, Total=11130 [2022-02-10 22:26:07,575 INFO L934 BasicCegarLoop]: 597 mSDtfsCounter, 1899 mSDsluCounter, 11000 mSDsCounter, 0 mSdLazyCounter, 2110 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 11317 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:07,575 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1899 Valid, 11317 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2110 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-10 22:26:07,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6613 states. [2022-02-10 22:26:07,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6613 to 5364. [2022-02-10 22:26:07,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5364 states, 5363 states have (on average 2.638448629498415) internal successors, (14150), 5363 states have internal predecessors, (14150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:07,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 14150 transitions. [2022-02-10 22:26:07,646 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 14150 transitions. Word has length 137 [2022-02-10 22:26:07,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:07,647 INFO L470 AbstractCegarLoop]: Abstraction has 5364 states and 14150 transitions. [2022-02-10 22:26:07,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:07,647 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 14150 transitions. [2022-02-10 22:26:07,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:26:07,653 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:07,653 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:07,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-02-10 22:26:07,653 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:07,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:07,653 INFO L85 PathProgramCache]: Analyzing trace with hash -162448323, now seen corresponding path program 12 times [2022-02-10 22:26:07,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:07,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314450553] [2022-02-10 22:26:07,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:07,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:08,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:08,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:08,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314450553] [2022-02-10 22:26:08,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314450553] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:08,166 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:08,166 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:26:08,166 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273823459] [2022-02-10 22:26:08,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:08,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:26:08,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:08,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:26:08,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:26:08,167 INFO L87 Difference]: Start difference. First operand 5364 states and 14150 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:16,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:16,112 INFO L93 Difference]: Finished difference Result 7476 states and 19554 transitions. [2022-02-10 22:26:16,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-10 22:26:16,112 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:26:16,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:16,121 INFO L225 Difference]: With dead ends: 7476 [2022-02-10 22:26:16,121 INFO L226 Difference]: Without dead ends: 6627 [2022-02-10 22:26:16,122 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2081 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=2337, Invalid=7169, Unknown=0, NotChecked=0, Total=9506 [2022-02-10 22:26:16,122 INFO L934 BasicCegarLoop]: 587 mSDtfsCounter, 1634 mSDsluCounter, 10619 mSDsCounter, 0 mSdLazyCounter, 2149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 10939 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:16,122 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1634 Valid, 10939 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2149 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-10 22:26:16,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6627 states. [2022-02-10 22:26:16,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6627 to 5420. [2022-02-10 22:26:16,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 5419 states have (on average 2.630005536076767) internal successors, (14252), 5419 states have internal predecessors, (14252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:16,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 14252 transitions. [2022-02-10 22:26:16,197 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 14252 transitions. Word has length 137 [2022-02-10 22:26:16,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:16,197 INFO L470 AbstractCegarLoop]: Abstraction has 5420 states and 14252 transitions. [2022-02-10 22:26:16,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:16,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 14252 transitions. [2022-02-10 22:26:16,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:26:16,203 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:16,203 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:16,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-02-10 22:26:16,203 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:16,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:16,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1718511387, now seen corresponding path program 13 times [2022-02-10 22:26:16,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:16,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110209055] [2022-02-10 22:26:16,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:16,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:16,705 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 22:26:16,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:16,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110209055] [2022-02-10 22:26:16,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110209055] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:16,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:16,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:26:16,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65487648] [2022-02-10 22:26:16,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:16,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:26:16,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:16,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:26:16,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:26:16,707 INFO L87 Difference]: Start difference. First operand 5420 states and 14252 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:23,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:23,834 INFO L93 Difference]: Finished difference Result 7042 states and 18396 transitions. [2022-02-10 22:26:23,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-10 22:26:23,834 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:26:23,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:23,842 INFO L225 Difference]: With dead ends: 7042 [2022-02-10 22:26:23,842 INFO L226 Difference]: Without dead ends: 6596 [2022-02-10 22:26:23,843 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1894 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=2071, Invalid=6671, Unknown=0, NotChecked=0, Total=8742 [2022-02-10 22:26:23,843 INFO L934 BasicCegarLoop]: 569 mSDtfsCounter, 1426 mSDsluCounter, 9899 mSDsCounter, 0 mSdLazyCounter, 2011 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 10230 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:23,843 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1426 Valid, 10230 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2011 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:26:23,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6596 states. [2022-02-10 22:26:23,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6596 to 5424. [2022-02-10 22:26:23,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5423 states have (on average 2.629356444772266) internal successors, (14259), 5423 states have internal predecessors, (14259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:23,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 14259 transitions. [2022-02-10 22:26:23,906 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 14259 transitions. Word has length 137 [2022-02-10 22:26:23,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:23,906 INFO L470 AbstractCegarLoop]: Abstraction has 5424 states and 14259 transitions. [2022-02-10 22:26:23,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:23,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 14259 transitions. [2022-02-10 22:26:23,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:26:23,912 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:23,912 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:23,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-02-10 22:26:23,912 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:23,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:23,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1129650973, now seen corresponding path program 14 times [2022-02-10 22:26:23,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:23,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579382934] [2022-02-10 22:26:23,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:23,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:24,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:24,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:24,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579382934] [2022-02-10 22:26:24,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579382934] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:24,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:24,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:26:24,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115234842] [2022-02-10 22:26:24,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:24,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:26:24,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:24,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:26:24,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:26:24,439 INFO L87 Difference]: Start difference. First operand 5424 states and 14259 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:29,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:29,397 INFO L93 Difference]: Finished difference Result 6804 states and 17849 transitions. [2022-02-10 22:26:29,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-10 22:26:29,397 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:26:29,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:29,406 INFO L225 Difference]: With dead ends: 6804 [2022-02-10 22:26:29,406 INFO L226 Difference]: Without dead ends: 6389 [2022-02-10 22:26:29,406 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1754 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1824, Invalid=6186, Unknown=0, NotChecked=0, Total=8010 [2022-02-10 22:26:29,406 INFO L934 BasicCegarLoop]: 561 mSDtfsCounter, 1227 mSDsluCounter, 9685 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 10027 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:29,407 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 10027 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:26:29,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6389 states. [2022-02-10 22:26:29,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6389 to 5436. [2022-02-10 22:26:29,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.6274149034038636) internal successors, (14280), 5435 states have internal predecessors, (14280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:29,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14280 transitions. [2022-02-10 22:26:29,478 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14280 transitions. Word has length 137 [2022-02-10 22:26:29,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:29,478 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14280 transitions. [2022-02-10 22:26:29,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:29,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14280 transitions. [2022-02-10 22:26:29,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:26:29,485 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:29,485 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:29,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-02-10 22:26:29,485 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:29,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:29,485 INFO L85 PathProgramCache]: Analyzing trace with hash 701674921, now seen corresponding path program 15 times [2022-02-10 22:26:29,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:29,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316233323] [2022-02-10 22:26:29,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:29,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:29,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:29,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:29,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316233323] [2022-02-10 22:26:29,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316233323] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:29,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:29,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:26:29,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549892007] [2022-02-10 22:26:29,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:29,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:26:29,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:29,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:26:29,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:26:29,972 INFO L87 Difference]: Start difference. First operand 5436 states and 14280 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call 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 6649 states and 17442 transitions. [2022-02-10 22:26:34,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 22:26:34,303 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:26:34,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:34,313 INFO L225 Difference]: With dead ends: 6649 [2022-02-10 22:26:34,314 INFO L226 Difference]: Without dead ends: 6327 [2022-02-10 22:26:34,315 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1343 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1492, Invalid=5150, Unknown=0, NotChecked=0, Total=6642 [2022-02-10 22:26:34,315 INFO L934 BasicCegarLoop]: 552 mSDtfsCounter, 1194 mSDsluCounter, 8575 mSDsCounter, 0 mSdLazyCounter, 1784 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 8949 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:34,315 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1194 Valid, 8949 Invalid, 1787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1784 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:26:34,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2022-02-10 22:26:34,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 5440. [2022-02-10 22:26:34,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6267696267696268) internal successors, (14287), 5439 states have internal predecessors, (14287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:34,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14287 transitions. [2022-02-10 22:26:34,399 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14287 transitions. Word has length 137 [2022-02-10 22:26:34,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:34,399 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14287 transitions. [2022-02-10 22:26:34,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:34,399 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14287 transitions. [2022-02-10 22:26:34,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:26:34,405 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:34,405 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:34,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-02-10 22:26:34,406 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:34,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:34,406 INFO L85 PathProgramCache]: Analyzing trace with hash 997277757, now seen corresponding path program 16 times [2022-02-10 22:26:34,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:34,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490373408] [2022-02-10 22:26:34,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:34,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:34,993 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 22:26:34,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:34,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490373408] [2022-02-10 22:26:34,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490373408] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:34,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:34,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:26:34,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63670566] [2022-02-10 22:26:34,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:34,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:26:34,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:34,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:26:34,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:26:34,995 INFO L87 Difference]: Start difference. First operand 5440 states and 14287 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:38,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:38,712 INFO L93 Difference]: Finished difference Result 6556 states and 17201 transitions. [2022-02-10 22:26:38,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:26:38,713 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:26:38,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:38,721 INFO L225 Difference]: With dead ends: 6556 [2022-02-10 22:26:38,721 INFO L226 Difference]: Without dead ends: 6265 [2022-02-10 22:26:38,722 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 979 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1210, Invalid=4192, Unknown=0, NotChecked=0, Total=5402 [2022-02-10 22:26:38,722 INFO L934 BasicCegarLoop]: 544 mSDtfsCounter, 1121 mSDsluCounter, 8206 mSDsCounter, 0 mSdLazyCounter, 1709 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 8593 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:38,722 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1121 Valid, 8593 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1709 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:26:38,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6265 states. [2022-02-10 22:26:38,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6265 to 5444. [2022-02-10 22:26:38,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5444 states, 5443 states have (on average 2.6261252985485943) internal successors, (14294), 5443 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:38,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 14294 transitions. [2022-02-10 22:26:38,795 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 14294 transitions. Word has length 137 [2022-02-10 22:26:38,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:38,795 INFO L470 AbstractCegarLoop]: Abstraction has 5444 states and 14294 transitions. [2022-02-10 22:26:38,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:38,796 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 14294 transitions. [2022-02-10 22:26:38,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:26:38,801 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:38,801 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:38,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-02-10 22:26:38,802 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:38,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:38,802 INFO L85 PathProgramCache]: Analyzing trace with hash 579096103, now seen corresponding path program 17 times [2022-02-10 22:26:38,802 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:38,802 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755294278] [2022-02-10 22:26:38,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:38,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:39,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:26:39,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:39,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755294278] [2022-02-10 22:26:39,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755294278] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:39,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:39,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:26:39,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601025048] [2022-02-10 22:26:39,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:39,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:26:39,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:39,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:26:39,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:26:39,315 INFO L87 Difference]: Start difference. First operand 5444 states and 14294 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:43,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:43,496 INFO L93 Difference]: Finished difference Result 6401 states and 16802 transitions. [2022-02-10 22:26:43,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:26:43,496 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:26:43,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:43,506 INFO L225 Difference]: With dead ends: 6401 [2022-02-10 22:26:43,506 INFO L226 Difference]: Without dead ends: 6144 [2022-02-10 22:26:43,506 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=951, Invalid=2831, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:26:43,507 INFO L934 BasicCegarLoop]: 529 mSDtfsCounter, 987 mSDsluCounter, 9316 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 9671 SdHoareTripleChecker+Invalid, 1886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:43,507 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [987 Valid, 9671 Invalid, 1886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:26:43,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6144 states. [2022-02-10 22:26:43,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6144 to 5448. [2022-02-10 22:26:43,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 5447 states have (on average 2.625481916651368) internal successors, (14301), 5447 states have internal predecessors, (14301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:43,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 14301 transitions. [2022-02-10 22:26:43,587 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 14301 transitions. Word has length 137 [2022-02-10 22:26:43,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:43,587 INFO L470 AbstractCegarLoop]: Abstraction has 5448 states and 14301 transitions. [2022-02-10 22:26:43,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:43,587 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 14301 transitions. [2022-02-10 22:26:43,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:26:43,593 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:43,593 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:43,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-02-10 22:26:43,594 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:43,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:43,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2071917537, now seen corresponding path program 18 times [2022-02-10 22:26:43,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:43,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624232628] [2022-02-10 22:26:43,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:43,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:44,158 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 22:26:44,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:44,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624232628] [2022-02-10 22:26:44,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624232628] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:44,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:44,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:26:44,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887143020] [2022-02-10 22:26:44,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:44,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:26:44,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:44,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:26:44,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:26:44,159 INFO L87 Difference]: Start difference. First operand 5448 states and 14301 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:48,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:48,524 INFO L93 Difference]: Finished difference Result 6404 states and 16804 transitions. [2022-02-10 22:26:48,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:26:48,525 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:26:48,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:48,533 INFO L225 Difference]: With dead ends: 6404 [2022-02-10 22:26:48,534 INFO L226 Difference]: Without dead ends: 6064 [2022-02-10 22:26:48,534 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=978, Invalid=3312, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:26:48,534 INFO L934 BasicCegarLoop]: 537 mSDtfsCounter, 1022 mSDsluCounter, 8120 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 8516 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:48,534 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 8516 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1683 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:26:48,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6064 states. [2022-02-10 22:26:48,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6064 to 5368. [2022-02-10 22:26:48,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5368 states, 5367 states have (on average 2.6377864728898825) internal successors, (14157), 5367 states have internal predecessors, (14157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:48,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5368 states to 5368 states and 14157 transitions. [2022-02-10 22:26:48,617 INFO L78 Accepts]: Start accepts. Automaton has 5368 states and 14157 transitions. Word has length 137 [2022-02-10 22:26:48,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:48,617 INFO L470 AbstractCegarLoop]: Abstraction has 5368 states and 14157 transitions. [2022-02-10 22:26:48,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:48,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5368 states and 14157 transitions. [2022-02-10 22:26:48,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:26:48,623 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:48,623 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:48,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-02-10 22:26:48,623 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:48,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:48,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2023308581, now seen corresponding path program 19 times [2022-02-10 22:26:48,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:48,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083066964] [2022-02-10 22:26:48,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:48,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:49,094 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 22:26:49,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:49,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083066964] [2022-02-10 22:26:49,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083066964] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:26:49,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:26:49,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:26:49,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441269501] [2022-02-10 22:26:49,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:26:49,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:26:49,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:49,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:26:49,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:26:49,095 INFO L87 Difference]: Start difference. First operand 5368 states and 14157 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:59,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:59,994 INFO L93 Difference]: Finished difference Result 6832 states and 17936 transitions. [2022-02-10 22:26:59,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-10 22:26:59,994 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:26:59,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:00,002 INFO L225 Difference]: With dead ends: 6832 [2022-02-10 22:27:00,002 INFO L226 Difference]: Without dead ends: 5936 [2022-02-10 22:27:00,003 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2313 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=2622, Invalid=7680, Unknown=0, NotChecked=0, Total=10302 [2022-02-10 22:27:00,003 INFO L934 BasicCegarLoop]: 597 mSDtfsCounter, 1533 mSDsluCounter, 9910 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 10255 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:00,003 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1533 Valid, 10255 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:27:00,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5936 states. [2022-02-10 22:27:00,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5936 to 5352. [2022-02-10 22:27:00,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 5351 states have (on average 2.638198467576154) internal successors, (14117), 5351 states have internal predecessors, (14117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:00,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 14117 transitions. [2022-02-10 22:27:00,077 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 14117 transitions. Word has length 137 [2022-02-10 22:27:00,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:00,077 INFO L470 AbstractCegarLoop]: Abstraction has 5352 states and 14117 transitions. [2022-02-10 22:27:00,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:00,078 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 14117 transitions. [2022-02-10 22:27:00,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:27:00,083 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:00,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:00,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-02-10 22:27:00,084 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:00,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:00,084 INFO L85 PathProgramCache]: Analyzing trace with hash -217224763, now seen corresponding path program 20 times [2022-02-10 22:27:00,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:00,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594249490] [2022-02-10 22:27:00,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:00,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:00,611 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 22:27:00,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:00,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594249490] [2022-02-10 22:27:00,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594249490] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:00,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:00,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:27:00,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861247434] [2022-02-10 22:27:00,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:00,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:27:00,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:00,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:27:00,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:27:00,612 INFO L87 Difference]: Start difference. First operand 5352 states and 14117 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:08,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:08,801 INFO L93 Difference]: Finished difference Result 7348 states and 19206 transitions. [2022-02-10 22:27:08,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-10 22:27:08,801 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:27:08,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:08,810 INFO L225 Difference]: With dead ends: 7348 [2022-02-10 22:27:08,810 INFO L226 Difference]: Without dead ends: 6499 [2022-02-10 22:27:08,812 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2143 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=2384, Invalid=7122, Unknown=0, NotChecked=0, Total=9506 [2022-02-10 22:27:08,812 INFO L934 BasicCegarLoop]: 583 mSDtfsCounter, 1623 mSDsluCounter, 9893 mSDsCounter, 0 mSdLazyCounter, 2101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1623 SdHoareTripleChecker+Valid, 10232 SdHoareTripleChecker+Invalid, 2104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:08,812 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1623 Valid, 10232 Invalid, 2104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2101 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-10 22:27:08,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6499 states. [2022-02-10 22:27:08,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6499 to 5460. [2022-02-10 22:27:08,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5460 states, 5459 states have (on average 2.630884777431764) internal successors, (14362), 5459 states have internal predecessors, (14362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:08,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5460 states to 5460 states and 14362 transitions. [2022-02-10 22:27:08,891 INFO L78 Accepts]: Start accepts. Automaton has 5460 states and 14362 transitions. Word has length 137 [2022-02-10 22:27:08,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:08,892 INFO L470 AbstractCegarLoop]: Abstraction has 5460 states and 14362 transitions. [2022-02-10 22:27:08,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:08,892 INFO L276 IsEmpty]: Start isEmpty. Operand 5460 states and 14362 transitions. [2022-02-10 22:27:08,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:27:08,898 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:08,898 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:08,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-02-10 22:27:08,898 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:08,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:08,898 INFO L85 PathProgramCache]: Analyzing trace with hash -486419407, now seen corresponding path program 21 times [2022-02-10 22:27:08,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:08,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871809696] [2022-02-10 22:27:08,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:08,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:09,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:09,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:09,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871809696] [2022-02-10 22:27:09,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871809696] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:09,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:09,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:27:09,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804492767] [2022-02-10 22:27:09,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:09,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:27:09,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:09,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:27:09,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:27:09,438 INFO L87 Difference]: Start difference. First operand 5460 states and 14362 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:17,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:17,256 INFO L93 Difference]: Finished difference Result 7026 states and 18348 transitions. [2022-02-10 22:27:17,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-10 22:27:17,256 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:27:17,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:17,267 INFO L225 Difference]: With dead ends: 7026 [2022-02-10 22:27:17,267 INFO L226 Difference]: Without dead ends: 6580 [2022-02-10 22:27:17,268 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1950 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=2114, Invalid=6628, Unknown=0, NotChecked=0, Total=8742 [2022-02-10 22:27:17,268 INFO L934 BasicCegarLoop]: 567 mSDtfsCounter, 1478 mSDsluCounter, 9510 mSDsCounter, 0 mSdLazyCounter, 2012 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 9848 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:17,268 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1478 Valid, 9848 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2012 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:27:17,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6580 states. [2022-02-10 22:27:17,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6580 to 5464. [2022-02-10 22:27:17,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5464 states, 5463 states have (on average 2.630239794984441) internal successors, (14369), 5463 states have internal predecessors, (14369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5464 states to 5464 states and 14369 transitions. [2022-02-10 22:27:17,347 INFO L78 Accepts]: Start accepts. Automaton has 5464 states and 14369 transitions. Word has length 137 [2022-02-10 22:27:17,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:17,347 INFO L470 AbstractCegarLoop]: Abstraction has 5464 states and 14369 transitions. [2022-02-10 22:27:17,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:17,347 INFO L276 IsEmpty]: Start isEmpty. Operand 5464 states and 14369 transitions. [2022-02-10 22:27:17,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:27:17,353 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:17,353 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:17,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-02-10 22:27:17,353 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:17,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:17,353 INFO L85 PathProgramCache]: Analyzing trace with hash 102441007, now seen corresponding path program 22 times [2022-02-10 22:27:17,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:17,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132852278] [2022-02-10 22:27:17,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:17,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:17,973 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 22:27:17,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:17,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132852278] [2022-02-10 22:27:17,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132852278] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:17,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:17,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:27:17,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548219077] [2022-02-10 22:27:17,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:17,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:27:17,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:17,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:27:17,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:27:17,974 INFO L87 Difference]: Start difference. First operand 5464 states and 14369 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:24,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:24,855 INFO L93 Difference]: Finished difference Result 6800 states and 17830 transitions. [2022-02-10 22:27:24,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-10 22:27:24,855 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:27:24,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:24,863 INFO L225 Difference]: With dead ends: 6800 [2022-02-10 22:27:24,863 INFO L226 Difference]: Without dead ends: 6385 [2022-02-10 22:27:24,864 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1736 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1860, Invalid=6150, Unknown=0, NotChecked=0, Total=8010 [2022-02-10 22:27:24,864 INFO L934 BasicCegarLoop]: 559 mSDtfsCounter, 1131 mSDsluCounter, 9086 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 9437 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:24,865 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 9437 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:27:24,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6385 states. [2022-02-10 22:27:24,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6385 to 5476. [2022-02-10 22:27:24,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 5475 states have (on average 2.628310502283105) internal successors, (14390), 5475 states have internal predecessors, (14390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:24,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 14390 transitions. [2022-02-10 22:27:24,935 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 14390 transitions. Word has length 137 [2022-02-10 22:27:24,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:24,935 INFO L470 AbstractCegarLoop]: Abstraction has 5476 states and 14390 transitions. [2022-02-10 22:27:24,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:24,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 14390 transitions. [2022-02-10 22:27:24,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:27:24,941 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:24,941 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:24,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-02-10 22:27:24,942 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:24,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:24,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1933766901, now seen corresponding path program 23 times [2022-02-10 22:27:24,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:24,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277659817] [2022-02-10 22:27:24,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:24,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:25,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:25,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:25,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277659817] [2022-02-10 22:27:25,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277659817] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:25,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:25,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:27:25,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134725177] [2022-02-10 22:27:25,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:25,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:27:25,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:25,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:27:25,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:27:25,438 INFO L87 Difference]: Start difference. First operand 5476 states and 14390 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:30,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:30,278 INFO L93 Difference]: Finished difference Result 6649 states and 17434 transitions. [2022-02-10 22:27:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 22:27:30,278 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:27:30,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:30,285 INFO L225 Difference]: With dead ends: 6649 [2022-02-10 22:27:30,286 INFO L226 Difference]: Without dead ends: 6327 [2022-02-10 22:27:30,286 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1329 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1520, Invalid=5122, Unknown=0, NotChecked=0, Total=6642 [2022-02-10 22:27:30,286 INFO L934 BasicCegarLoop]: 549 mSDtfsCounter, 1167 mSDsluCounter, 9361 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 9705 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:30,286 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1167 Valid, 9705 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:27:30,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2022-02-10 22:27:30,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 5480. [2022-02-10 22:27:30,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5480 states, 5479 states have (on average 2.627669282715824) internal successors, (14397), 5479 states have internal predecessors, (14397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:30,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5480 states to 5480 states and 14397 transitions. [2022-02-10 22:27:30,341 INFO L78 Accepts]: Start accepts. Automaton has 5480 states and 14397 transitions. Word has length 137 [2022-02-10 22:27:30,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:30,341 INFO L470 AbstractCegarLoop]: Abstraction has 5480 states and 14397 transitions. [2022-02-10 22:27:30,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:30,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5480 states and 14397 transitions. [2022-02-10 22:27:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:27:30,346 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:30,346 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:30,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-02-10 22:27:30,346 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:30,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:30,346 INFO L85 PathProgramCache]: Analyzing trace with hash -2065597559, now seen corresponding path program 24 times [2022-02-10 22:27:30,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:30,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303300901] [2022-02-10 22:27:30,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:30,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:30,819 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:30,819 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303300901] [2022-02-10 22:27:30,819 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303300901] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:30,819 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:30,819 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:27:30,819 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015151098] [2022-02-10 22:27:30,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:30,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:27:30,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:30,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:27:30,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:27:30,820 INFO L87 Difference]: Start difference. First operand 5480 states and 14397 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:34,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:34,963 INFO L93 Difference]: Finished difference Result 6560 states and 17204 transitions. [2022-02-10 22:27:34,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:27:34,963 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:27:34,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:34,971 INFO L225 Difference]: With dead ends: 6560 [2022-02-10 22:27:34,971 INFO L226 Difference]: Without dead ends: 6269 [2022-02-10 22:27:34,971 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1228, Invalid=4174, Unknown=0, NotChecked=0, Total=5402 [2022-02-10 22:27:34,972 INFO L934 BasicCegarLoop]: 540 mSDtfsCounter, 1054 mSDsluCounter, 9323 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 9669 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:34,972 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1054 Valid, 9669 Invalid, 1999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:27:34,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6269 states. [2022-02-10 22:27:35,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6269 to 5484. [2022-02-10 22:27:35,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5483 states have (on average 2.627028998723327) internal successors, (14404), 5483 states have internal predecessors, (14404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:35,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 14404 transitions. [2022-02-10 22:27:35,036 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 14404 transitions. Word has length 137 [2022-02-10 22:27:35,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:35,036 INFO L470 AbstractCegarLoop]: Abstraction has 5484 states and 14404 transitions. [2022-02-10 22:27:35,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:35,036 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 14404 transitions. [2022-02-10 22:27:35,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:27:35,041 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:35,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:35,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-02-10 22:27:35,041 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:35,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:35,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1811188083, now seen corresponding path program 25 times [2022-02-10 22:27:35,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:35,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028081149] [2022-02-10 22:27:35,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:35,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:35,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:35,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:35,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028081149] [2022-02-10 22:27:35,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028081149] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:35,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:35,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:27:35,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004075586] [2022-02-10 22:27:35,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:35,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:27:35,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:35,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:27:35,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:27:35,525 INFO L87 Difference]: Start difference. First operand 5484 states and 14404 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:39,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:39,299 INFO L93 Difference]: Finished difference Result 6417 states and 16838 transitions. [2022-02-10 22:27:39,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:27:39,300 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:27:39,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:39,310 INFO L225 Difference]: With dead ends: 6417 [2022-02-10 22:27:39,310 INFO L226 Difference]: Without dead ends: 6160 [2022-02-10 22:27:39,311 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=958, Invalid=2824, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:27:39,311 INFO L934 BasicCegarLoop]: 524 mSDtfsCounter, 1032 mSDsluCounter, 8471 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 8841 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:39,311 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 8841 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:27:39,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6160 states. [2022-02-10 22:27:39,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6160 to 5488. [2022-02-10 22:27:39,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5488 states, 5487 states have (on average 2.6263896482595226) internal successors, (14411), 5487 states have internal predecessors, (14411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:39,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5488 states to 5488 states and 14411 transitions. [2022-02-10 22:27:39,400 INFO L78 Accepts]: Start accepts. Automaton has 5488 states and 14411 transitions. Word has length 137 [2022-02-10 22:27:39,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:39,400 INFO L470 AbstractCegarLoop]: Abstraction has 5488 states and 14411 transitions. [2022-02-10 22:27:39,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:39,400 INFO L276 IsEmpty]: Start isEmpty. Operand 5488 states and 14411 transitions. [2022-02-10 22:27:39,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:27:39,407 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:39,407 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:39,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-02-10 22:27:39,407 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:39,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:39,407 INFO L85 PathProgramCache]: Analyzing trace with hash -990957779, now seen corresponding path program 26 times [2022-02-10 22:27:39,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:39,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035153027] [2022-02-10 22:27:39,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:39,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:39,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:39,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:39,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035153027] [2022-02-10 22:27:39,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035153027] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:39,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:39,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:27:39,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853363667] [2022-02-10 22:27:39,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:39,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:27:39,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:39,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:27:39,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:27:39,931 INFO L87 Difference]: Start difference. First operand 5488 states and 14411 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:44,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:44,606 INFO L93 Difference]: Finished difference Result 6388 states and 16756 transitions. [2022-02-10 22:27:44,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:27:44,607 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:27:44,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:44,614 INFO L225 Difference]: With dead ends: 6388 [2022-02-10 22:27:44,614 INFO L226 Difference]: Without dead ends: 6048 [2022-02-10 22:27:44,615 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=990, Invalid=3300, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:27:44,615 INFO L934 BasicCegarLoop]: 532 mSDtfsCounter, 917 mSDsluCounter, 9724 mSDsCounter, 0 mSdLazyCounter, 2037 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 10065 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:44,615 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [917 Valid, 10065 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2037 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:27:44,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6048 states. [2022-02-10 22:27:44,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6048 to 5408. [2022-02-10 22:27:44,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5408 states, 5407 states have (on average 2.629739226928056) internal successors, (14219), 5407 states have internal predecessors, (14219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:44,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5408 states to 5408 states and 14219 transitions. [2022-02-10 22:27:44,680 INFO L78 Accepts]: Start accepts. Automaton has 5408 states and 14219 transitions. Word has length 137 [2022-02-10 22:27:44,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:44,680 INFO L470 AbstractCegarLoop]: Abstraction has 5408 states and 14219 transitions. [2022-02-10 22:27:44,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:44,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5408 states and 14219 transitions. [2022-02-10 22:27:44,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:27:44,685 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:44,685 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:44,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-02-10 22:27:44,686 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:44,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:44,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1945541703, now seen corresponding path program 27 times [2022-02-10 22:27:44,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:44,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926271166] [2022-02-10 22:27:44,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:44,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:45,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:45,182 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:45,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926271166] [2022-02-10 22:27:45,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926271166] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:45,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:45,183 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:27:45,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973178386] [2022-02-10 22:27:45,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:45,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:27:45,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:45,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:27:45,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:27:45,183 INFO L87 Difference]: Start difference. First operand 5408 states and 14219 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:49,964 INFO L93 Difference]: Finished difference Result 6437 states and 16883 transitions. [2022-02-10 22:27:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 22:27:49,965 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:27:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:49,973 INFO L225 Difference]: With dead ends: 6437 [2022-02-10 22:27:49,973 INFO L226 Difference]: Without dead ends: 6115 [2022-02-10 22:27:49,974 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1520, Invalid=4960, Unknown=0, NotChecked=0, Total=6480 [2022-02-10 22:27:49,975 INFO L934 BasicCegarLoop]: 536 mSDtfsCounter, 1114 mSDsluCounter, 9778 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 10091 SdHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:49,975 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1114 Valid, 10091 Invalid, 2076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2073 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:27:49,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6115 states. [2022-02-10 22:27:50,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6115 to 5432. [2022-02-10 22:27:50,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.6295341557724177) internal successors, (14281), 5431 states have internal predecessors, (14281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:50,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14281 transitions. [2022-02-10 22:27:50,049 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14281 transitions. Word has length 137 [2022-02-10 22:27:50,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:50,049 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14281 transitions. [2022-02-10 22:27:50,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:50,049 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14281 transitions. [2022-02-10 22:27:50,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:27:50,055 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:50,055 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:50,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-02-10 22:27:50,055 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:50,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:50,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2053822757, now seen corresponding path program 28 times [2022-02-10 22:27:50,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:50,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395613168] [2022-02-10 22:27:50,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:50,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:50,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:50,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:50,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395613168] [2022-02-10 22:27:50,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395613168] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:50,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:50,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:27:50,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458922575] [2022-02-10 22:27:50,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:50,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:27:50,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:50,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:27:50,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:27:50,575 INFO L87 Difference]: Start difference. First operand 5432 states and 14281 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:55,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:55,169 INFO L93 Difference]: Finished difference Result 6380 states and 16741 transitions. [2022-02-10 22:27:55,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:27:55,170 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:27:55,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:55,178 INFO L225 Difference]: With dead ends: 6380 [2022-02-10 22:27:55,179 INFO L226 Difference]: Without dead ends: 6089 [2022-02-10 22:27:55,180 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 902 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1257, Invalid=4145, Unknown=0, NotChecked=0, Total=5402 [2022-02-10 22:27:55,180 INFO L934 BasicCegarLoop]: 530 mSDtfsCounter, 966 mSDsluCounter, 9545 mSDsCounter, 0 mSdLazyCounter, 2044 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 9870 SdHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:55,180 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [966 Valid, 9870 Invalid, 2047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2044 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:27:55,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6089 states. [2022-02-10 22:27:55,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6089 to 5436. [2022-02-10 22:27:55,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.628886844526219) internal successors, (14288), 5435 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:55,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14288 transitions. [2022-02-10 22:27:55,266 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14288 transitions. Word has length 137 [2022-02-10 22:27:55,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:55,266 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14288 transitions. [2022-02-10 22:27:55,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:55,266 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14288 transitions. [2022-02-10 22:27:55,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:27:55,272 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:55,272 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:55,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-02-10 22:27:55,273 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:55,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:55,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1822962885, now seen corresponding path program 29 times [2022-02-10 22:27:55,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:55,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347585972] [2022-02-10 22:27:55,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:55,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:55,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:27:55,746 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:55,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347585972] [2022-02-10 22:27:55,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347585972] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:27:55,746 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:27:55,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:27:55,746 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964869340] [2022-02-10 22:27:55,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:27:55,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:27:55,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:55,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:27:55,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:27:55,747 INFO L87 Difference]: Start difference. First operand 5436 states and 14288 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:01,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:01,396 INFO L93 Difference]: Finished difference Result 6277 states and 16477 transitions. [2022-02-10 22:28:01,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 22:28:01,396 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:28:01,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:01,403 INFO L225 Difference]: With dead ends: 6277 [2022-02-10 22:28:01,403 INFO L226 Difference]: Without dead ends: 6020 [2022-02-10 22:28:01,403 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1028, Invalid=3004, Unknown=0, NotChecked=0, Total=4032 [2022-02-10 22:28:01,404 INFO L934 BasicCegarLoop]: 518 mSDtfsCounter, 946 mSDsluCounter, 8705 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 9060 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:01,404 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [946 Valid, 9060 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1860 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:28:01,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2022-02-10 22:28:01,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 5440. [2022-02-10 22:28:01,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6282404853833423) internal successors, (14295), 5439 states have internal predecessors, (14295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:01,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14295 transitions. [2022-02-10 22:28:01,467 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14295 transitions. Word has length 137 [2022-02-10 22:28:01,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:01,467 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14295 transitions. [2022-02-10 22:28:01,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:01,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14295 transitions. [2022-02-10 22:28:01,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:28:01,472 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:01,472 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:01,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-02-10 22:28:01,473 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:01,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:01,473 INFO L85 PathProgramCache]: Analyzing trace with hash -979182977, now seen corresponding path program 30 times [2022-02-10 22:28:01,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:01,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072891245] [2022-02-10 22:28:01,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:01,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:01,973 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 22:28:01,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:01,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072891245] [2022-02-10 22:28:01,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072891245] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:01,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:01,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:28:01,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959774170] [2022-02-10 22:28:01,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:01,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:28:01,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:01,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:28:01,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:28:01,974 INFO L87 Difference]: Start difference. First operand 5440 states and 14295 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:05,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:05,652 INFO L93 Difference]: Finished difference Result 6248 states and 16395 transitions. [2022-02-10 22:28:05,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:28:05,652 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:28:05,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:05,662 INFO L225 Difference]: With dead ends: 6248 [2022-02-10 22:28:05,662 INFO L226 Difference]: Without dead ends: 5976 [2022-02-10 22:28:05,663 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1004, Invalid=3286, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:28:05,663 INFO L934 BasicCegarLoop]: 523 mSDtfsCounter, 944 mSDsluCounter, 8924 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 9275 SdHoareTripleChecker+Invalid, 1940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:05,663 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [944 Valid, 9275 Invalid, 1940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1937 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:28:05,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2022-02-10 22:28:05,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 5428. [2022-02-10 22:28:05,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 2.6294453657637735) internal successors, (14270), 5427 states have internal predecessors, (14270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:05,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 14270 transitions. [2022-02-10 22:28:05,743 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 14270 transitions. Word has length 137 [2022-02-10 22:28:05,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:05,744 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 14270 transitions. [2022-02-10 22:28:05,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:05,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 14270 transitions. [2022-02-10 22:28:05,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:28:05,750 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:05,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:05,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-02-10 22:28:05,750 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:05,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:05,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1535630111, now seen corresponding path program 31 times [2022-02-10 22:28:05,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:05,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941220031] [2022-02-10 22:28:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:05,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:06,271 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 22:28:06,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:06,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941220031] [2022-02-10 22:28:06,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941220031] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:06,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:06,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:28:06,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796753631] [2022-02-10 22:28:06,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:06,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:28:06,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:06,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:28:06,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:28:06,272 INFO L87 Difference]: Start difference. First operand 5428 states and 14270 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:11,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:11,573 INFO L93 Difference]: Finished difference Result 6193 states and 16254 transitions. [2022-02-10 22:28:11,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-10 22:28:11,573 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:28:11,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:11,582 INFO L225 Difference]: With dead ends: 6193 [2022-02-10 22:28:11,582 INFO L226 Difference]: Without dead ends: 5908 [2022-02-10 22:28:11,583 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1287, Invalid=3543, Unknown=0, NotChecked=0, Total=4830 [2022-02-10 22:28:11,583 INFO L934 BasicCegarLoop]: 520 mSDtfsCounter, 1041 mSDsluCounter, 8697 mSDsCounter, 0 mSdLazyCounter, 1829 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 9047 SdHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:11,583 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1041 Valid, 9047 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1829 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:28:11,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5908 states. [2022-02-10 22:28:11,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5908 to 5436. [2022-02-10 22:28:11,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.628886844526219) internal successors, (14288), 5435 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:11,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14288 transitions. [2022-02-10 22:28:11,658 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14288 transitions. Word has length 137 [2022-02-10 22:28:11,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:11,658 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14288 transitions. [2022-02-10 22:28:11,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:11,658 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14288 transitions. [2022-02-10 22:28:11,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:28:11,664 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:11,664 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:11,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-02-10 22:28:11,664 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:11,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:11,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1515375091, now seen corresponding path program 32 times [2022-02-10 22:28:11,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:11,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506354259] [2022-02-10 22:28:11,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:11,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:12,145 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 22:28:12,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:12,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506354259] [2022-02-10 22:28:12,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506354259] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:12,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:12,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:28:12,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448726846] [2022-02-10 22:28:12,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:12,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:28:12,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:12,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:28:12,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:28:12,147 INFO L87 Difference]: Start difference. First operand 5436 states and 14288 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:15,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:15,852 INFO L93 Difference]: Finished difference Result 6201 states and 16272 transitions. [2022-02-10 22:28:15,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:28:15,852 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:28:15,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:15,860 INFO L225 Difference]: With dead ends: 6201 [2022-02-10 22:28:15,860 INFO L226 Difference]: Without dead ends: 5944 [2022-02-10 22:28:15,860 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1104, Invalid=3186, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:28:15,861 INFO L934 BasicCegarLoop]: 520 mSDtfsCounter, 980 mSDsluCounter, 8822 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 9179 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:15,861 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 9179 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:28:15,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-02-10 22:28:15,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5440. [2022-02-10 22:28:15,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6282404853833423) internal successors, (14295), 5439 states have internal predecessors, (14295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:15,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14295 transitions. [2022-02-10 22:28:15,920 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14295 transitions. Word has length 137 [2022-02-10 22:28:15,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:15,921 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14295 transitions. [2022-02-10 22:28:15,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:15,921 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14295 transitions. [2022-02-10 22:28:15,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:28:15,926 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:15,926 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] [2022-02-10 22:28:15,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-02-10 22:28:15,926 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:15,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:15,927 INFO L85 PathProgramCache]: Analyzing trace with hash -22553657, now seen corresponding path program 33 times [2022-02-10 22:28:15,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:15,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401835545] [2022-02-10 22:28:15,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:15,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:16,413 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 22:28:16,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:16,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401835545] [2022-02-10 22:28:16,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401835545] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:16,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:16,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:28:16,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258044236] [2022-02-10 22:28:16,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:16,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:28:16,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:16,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:28:16,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:28:16,415 INFO L87 Difference]: Start difference. First operand 5440 states and 14295 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:20,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:20,010 INFO L93 Difference]: Finished difference Result 6172 states and 16190 transitions. [2022-02-10 22:28:20,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-10 22:28:20,011 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:28:20,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:20,020 INFO L225 Difference]: With dead ends: 6172 [2022-02-10 22:28:20,020 INFO L226 Difference]: Without dead ends: 5904 [2022-02-10 22:28:20,021 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=970, Invalid=3190, Unknown=0, NotChecked=0, Total=4160 [2022-02-10 22:28:20,021 INFO L934 BasicCegarLoop]: 526 mSDtfsCounter, 896 mSDsluCounter, 9172 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 9518 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:20,021 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [896 Valid, 9518 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:28:20,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5904 states. [2022-02-10 22:28:20,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5904 to 5432. [2022-02-10 22:28:20,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.628797643159639) internal successors, (14277), 5431 states have internal predecessors, (14277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:20,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14277 transitions. [2022-02-10 22:28:20,084 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14277 transitions. Word has length 137 [2022-02-10 22:28:20,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:20,085 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14277 transitions. [2022-02-10 22:28:20,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:20,085 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14277 transitions. [2022-02-10 22:28:20,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:28:20,090 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:20,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:20,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-02-10 22:28:20,092 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:20,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:20,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1014872227, now seen corresponding path program 34 times [2022-02-10 22:28:20,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:20,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636369978] [2022-02-10 22:28:20,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:20,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:20,588 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 22:28:20,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:20,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636369978] [2022-02-10 22:28:20,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636369978] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:20,588 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:20,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:28:20,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568895969] [2022-02-10 22:28:20,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:20,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:28:20,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:20,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:28:20,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:28:20,589 INFO L87 Difference]: Start difference. First operand 5432 states and 14277 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:26,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:26,841 INFO L93 Difference]: Finished difference Result 6304 states and 16532 transitions. [2022-02-10 22:28:26,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-10 22:28:26,842 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:28:26,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:26,849 INFO L225 Difference]: With dead ends: 6304 [2022-02-10 22:28:26,849 INFO L226 Difference]: Without dead ends: 6013 [2022-02-10 22:28:26,849 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1227, Invalid=4029, Unknown=0, NotChecked=0, Total=5256 [2022-02-10 22:28:26,850 INFO L934 BasicCegarLoop]: 533 mSDtfsCounter, 977 mSDsluCounter, 9487 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 9817 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:26,850 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 9817 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:28:26,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2022-02-10 22:28:26,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 5436. [2022-02-10 22:28:26,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.6281508739650414) internal successors, (14284), 5435 states have internal predecessors, (14284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:26,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14284 transitions. [2022-02-10 22:28:26,907 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14284 transitions. Word has length 137 [2022-02-10 22:28:26,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:26,907 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14284 transitions. [2022-02-10 22:28:26,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:26,908 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14284 transitions. [2022-02-10 22:28:26,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:28:26,913 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:26,913 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:26,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-02-10 22:28:26,913 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:26,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:26,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1433053881, now seen corresponding path program 35 times [2022-02-10 22:28:26,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:26,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961712948] [2022-02-10 22:28:26,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:26,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:27,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:27,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:27,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961712948] [2022-02-10 22:28:27,386 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961712948] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:27,386 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:27,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:28:27,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449114060] [2022-02-10 22:28:27,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:27,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:28:27,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:27,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:28:27,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:28:27,387 INFO L87 Difference]: Start difference. First operand 5436 states and 14284 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:31,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:31,674 INFO L93 Difference]: Finished difference Result 6201 states and 16268 transitions. [2022-02-10 22:28:31,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-10 22:28:31,674 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:28:31,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:31,682 INFO L225 Difference]: With dead ends: 6201 [2022-02-10 22:28:31,682 INFO L226 Difference]: Without dead ends: 5944 [2022-02-10 22:28:31,683 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1062, Invalid=3098, Unknown=0, NotChecked=0, Total=4160 [2022-02-10 22:28:31,683 INFO L934 BasicCegarLoop]: 520 mSDtfsCounter, 1031 mSDsluCounter, 8867 mSDsCounter, 0 mSdLazyCounter, 1900 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 9220 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:31,683 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1031 Valid, 9220 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1900 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:28:31,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-02-10 22:28:31,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5440. [2022-02-10 22:28:31,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6275050560764845) internal successors, (14291), 5439 states have internal predecessors, (14291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:31,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14291 transitions. [2022-02-10 22:28:31,762 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14291 transitions. Word has length 137 [2022-02-10 22:28:31,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:31,762 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14291 transitions. [2022-02-10 22:28:31,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:31,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14291 transitions. [2022-02-10 22:28:31,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:28:31,768 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:31,768 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:31,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-02-10 22:28:31,769 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:31,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:31,769 INFO L85 PathProgramCache]: Analyzing trace with hash 59767553, now seen corresponding path program 36 times [2022-02-10 22:28:31,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:31,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843751434] [2022-02-10 22:28:31,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:31,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:32,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:32,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:32,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843751434] [2022-02-10 22:28:32,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843751434] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:32,264 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:32,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:28:32,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417919595] [2022-02-10 22:28:32,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:32,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:28:32,264 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:32,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:28:32,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:28:32,265 INFO L87 Difference]: Start difference. First operand 5440 states and 14291 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:37,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:37,737 INFO L93 Difference]: Finished difference Result 6172 states and 16186 transitions. [2022-02-10 22:28:37,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:28:37,737 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:28:37,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:37,745 INFO L225 Difference]: With dead ends: 6172 [2022-02-10 22:28:37,745 INFO L226 Difference]: Without dead ends: 5896 [2022-02-10 22:28:37,746 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1009, Invalid=3281, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:28:37,747 INFO L934 BasicCegarLoop]: 528 mSDtfsCounter, 946 mSDsluCounter, 8931 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 9288 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:37,747 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [946 Valid, 9288 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1924 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:28:37,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2022-02-10 22:28:37,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5424. [2022-02-10 22:28:37,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5423 states have (on average 2.629356444772266) internal successors, (14259), 5423 states have internal predecessors, (14259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 14259 transitions. [2022-02-10 22:28:37,819 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 14259 transitions. Word has length 137 [2022-02-10 22:28:37,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:37,819 INFO L470 AbstractCegarLoop]: Abstraction has 5424 states and 14259 transitions. [2022-02-10 22:28:37,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:37,819 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 14259 transitions. [2022-02-10 22:28:37,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:28:37,825 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:37,825 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:37,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-02-10 22:28:37,825 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:37,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:37,826 INFO L85 PathProgramCache]: Analyzing trace with hash 40724957, now seen corresponding path program 37 times [2022-02-10 22:28:37,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:37,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761956800] [2022-02-10 22:28:37,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:37,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:38,375 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 22:28:38,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:38,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761956800] [2022-02-10 22:28:38,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761956800] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:38,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:38,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:28:38,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921038375] [2022-02-10 22:28:38,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:38,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:28:38,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:38,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:28:38,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:28:38,376 INFO L87 Difference]: Start difference. First operand 5424 states and 14259 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:53,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:53,637 INFO L93 Difference]: Finished difference Result 6568 states and 17212 transitions. [2022-02-10 22:28:53,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-10 22:28:53,637 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:28:53,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:53,646 INFO L225 Difference]: With dead ends: 6568 [2022-02-10 22:28:53,646 INFO L226 Difference]: Without dead ends: 6153 [2022-02-10 22:28:53,647 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1668 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=1857, Invalid=5975, Unknown=0, NotChecked=0, Total=7832 [2022-02-10 22:28:53,647 INFO L934 BasicCegarLoop]: 549 mSDtfsCounter, 1302 mSDsluCounter, 9380 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 9711 SdHoareTripleChecker+Invalid, 2016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:53,648 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1302 Valid, 9711 Invalid, 2016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:28:53,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6153 states. [2022-02-10 22:28:53,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6153 to 5436. [2022-02-10 22:28:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.6274149034038636) internal successors, (14280), 5435 states have internal predecessors, (14280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:53,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14280 transitions. [2022-02-10 22:28:53,724 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14280 transitions. Word has length 137 [2022-02-10 22:28:53,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:53,724 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14280 transitions. [2022-02-10 22:28:53,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:53,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14280 transitions. [2022-02-10 22:28:53,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:28:53,730 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:53,730 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:53,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-02-10 22:28:53,731 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:53,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:53,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1859617531, now seen corresponding path program 38 times [2022-02-10 22:28:53,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:53,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270889715] [2022-02-10 22:28:53,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:53,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:54,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:28:54,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:54,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270889715] [2022-02-10 22:28:54,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270889715] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:28:54,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:28:54,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:28:54,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836370764] [2022-02-10 22:28:54,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:28:54,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:28:54,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:54,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:28:54,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:28:54,235 INFO L87 Difference]: Start difference. First operand 5436 states and 14280 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:00,107 INFO L93 Difference]: Finished difference Result 6417 states and 16816 transitions. [2022-02-10 22:29:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 22:29:00,107 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:29:00,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:00,113 INFO L225 Difference]: With dead ends: 6417 [2022-02-10 22:29:00,113 INFO L226 Difference]: Without dead ends: 6095 [2022-02-10 22:29:00,114 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1254 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1546, Invalid=5096, Unknown=0, NotChecked=0, Total=6642 [2022-02-10 22:29:00,114 INFO L934 BasicCegarLoop]: 542 mSDtfsCounter, 1124 mSDsluCounter, 9817 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 10137 SdHoareTripleChecker+Invalid, 2078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:00,114 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 10137 Invalid, 2078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:29:00,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6095 states. [2022-02-10 22:29:00,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6095 to 5440. [2022-02-10 22:29:00,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6267696267696268) internal successors, (14287), 5439 states have internal predecessors, (14287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:00,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14287 transitions. [2022-02-10 22:29:00,167 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14287 transitions. Word has length 137 [2022-02-10 22:29:00,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:00,167 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14287 transitions. [2022-02-10 22:29:00,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:00,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14287 transitions. [2022-02-10 22:29:00,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:29:00,172 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:00,172 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] [2022-02-10 22:29:00,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-02-10 22:29:00,172 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:00,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:00,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1564014695, now seen corresponding path program 39 times [2022-02-10 22:29:00,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:00,173 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038253848] [2022-02-10 22:29:00,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:00,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:00,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:00,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:00,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038253848] [2022-02-10 22:29:00,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038253848] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:00,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:00,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:29:00,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428580531] [2022-02-10 22:29:00,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:00,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:29:00,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:00,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:29:00,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:29:00,670 INFO L87 Difference]: Start difference. First operand 5440 states and 14287 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:06,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:06,136 INFO L93 Difference]: Finished difference Result 6328 states and 16586 transitions. [2022-02-10 22:29:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:29:06,136 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:29:06,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:06,145 INFO L225 Difference]: With dead ends: 6328 [2022-02-10 22:29:06,145 INFO L226 Difference]: Without dead ends: 6037 [2022-02-10 22:29:06,146 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 961 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1250, Invalid=4152, Unknown=0, NotChecked=0, Total=5402 [2022-02-10 22:29:06,146 INFO L934 BasicCegarLoop]: 533 mSDtfsCounter, 990 mSDsluCounter, 9487 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 9817 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:06,146 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [990 Valid, 9817 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:29:06,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2022-02-10 22:29:06,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 5444. [2022-02-10 22:29:06,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5444 states, 5443 states have (on average 2.6261252985485943) internal successors, (14294), 5443 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:06,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 14294 transitions. [2022-02-10 22:29:06,218 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 14294 transitions. Word has length 137 [2022-02-10 22:29:06,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:06,219 INFO L470 AbstractCegarLoop]: Abstraction has 5444 states and 14294 transitions. [2022-02-10 22:29:06,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:06,219 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 14294 transitions. [2022-02-10 22:29:06,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:29:06,224 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:06,224 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:06,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-02-10 22:29:06,224 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:06,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:06,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1982196349, now seen corresponding path program 40 times [2022-02-10 22:29:06,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:06,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910432883] [2022-02-10 22:29:06,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:06,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:06,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:06,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:06,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910432883] [2022-02-10 22:29:06,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910432883] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:06,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:06,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:29:06,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477804698] [2022-02-10 22:29:06,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:06,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:29:06,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:06,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:29:06,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:29:06,703 INFO L87 Difference]: Start difference. First operand 5444 states and 14294 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:10,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:10,101 INFO L93 Difference]: Finished difference Result 6209 states and 16278 transitions. [2022-02-10 22:29:10,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-10 22:29:10,102 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:29:10,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:10,110 INFO L225 Difference]: With dead ends: 6209 [2022-02-10 22:29:10,110 INFO L226 Difference]: Without dead ends: 5952 [2022-02-10 22:29:10,111 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=993, Invalid=2913, Unknown=0, NotChecked=0, Total=3906 [2022-02-10 22:29:10,111 INFO L934 BasicCegarLoop]: 517 mSDtfsCounter, 932 mSDsluCounter, 9060 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 9406 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:10,111 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 9406 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1909 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:29:10,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2022-02-10 22:29:10,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 5448. [2022-02-10 22:29:10,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 5447 states have (on average 2.625481916651368) internal successors, (14301), 5447 states have internal predecessors, (14301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:10,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 14301 transitions. [2022-02-10 22:29:10,180 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 14301 transitions. Word has length 137 [2022-02-10 22:29:10,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:10,180 INFO L470 AbstractCegarLoop]: Abstraction has 5448 states and 14301 transitions. [2022-02-10 22:29:10,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:10,180 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 14301 transitions. [2022-02-10 22:29:10,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:29:10,185 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:10,186 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:10,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-02-10 22:29:10,186 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:10,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:10,186 INFO L85 PathProgramCache]: Analyzing trace with hash -489374915, now seen corresponding path program 41 times [2022-02-10 22:29:10,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:10,186 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368985620] [2022-02-10 22:29:10,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:10,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:10,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:10,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368985620] [2022-02-10 22:29:10,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368985620] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:10,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:10,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:29:10,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476829463] [2022-02-10 22:29:10,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:10,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:29:10,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:10,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:29:10,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:29:10,692 INFO L87 Difference]: Start difference. First operand 5448 states and 14301 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:15,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:15,254 INFO L93 Difference]: Finished difference Result 6180 states and 16196 transitions. [2022-02-10 22:29:15,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:29:15,254 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:29:15,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:15,263 INFO L225 Difference]: With dead ends: 6180 [2022-02-10 22:29:15,263 INFO L226 Difference]: Without dead ends: 5884 [2022-02-10 22:29:15,264 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1001, Invalid=3289, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:29:15,264 INFO L934 BasicCegarLoop]: 525 mSDtfsCounter, 934 mSDsluCounter, 8432 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 8800 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:15,264 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [934 Valid, 8800 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:29:15,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2022-02-10 22:29:15,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 5412. [2022-02-10 22:29:15,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 5411 states have (on average 2.629088892995749) internal successors, (14226), 5411 states have internal predecessors, (14226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:15,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 14226 transitions. [2022-02-10 22:29:15,344 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 14226 transitions. Word has length 137 [2022-02-10 22:29:15,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:15,344 INFO L470 AbstractCegarLoop]: Abstraction has 5412 states and 14226 transitions. [2022-02-10 22:29:15,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:15,345 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 14226 transitions. [2022-02-10 22:29:15,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:29:15,350 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:15,350 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:15,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-02-10 22:29:15,350 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:15,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:15,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1311377081, now seen corresponding path program 42 times [2022-02-10 22:29:15,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:15,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418107977] [2022-02-10 22:29:15,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:15,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:15,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:15,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:15,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418107977] [2022-02-10 22:29:15,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418107977] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:15,820 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:15,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:29:15,821 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378405612] [2022-02-10 22:29:15,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:15,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:29:15,821 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:15,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:29:15,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:29:15,821 INFO L87 Difference]: Start difference. First operand 5412 states and 14226 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:22,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:22,036 INFO L93 Difference]: Finished difference Result 6810 states and 17762 transitions. [2022-02-10 22:29:22,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-10 22:29:22,036 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:29:22,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:22,046 INFO L225 Difference]: With dead ends: 6810 [2022-02-10 22:29:22,046 INFO L226 Difference]: Without dead ends: 6364 [2022-02-10 22:29:22,047 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1864 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=2132, Invalid=6610, Unknown=0, NotChecked=0, Total=8742 [2022-02-10 22:29:22,047 INFO L934 BasicCegarLoop]: 557 mSDtfsCounter, 1376 mSDsluCounter, 9566 mSDsCounter, 0 mSdLazyCounter, 1990 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 9888 SdHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:22,047 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1376 Valid, 9888 Invalid, 1993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1990 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:29:22,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6364 states. [2022-02-10 22:29:22,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6364 to 5416. [2022-02-10 22:29:22,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5415 states have (on average 2.6284395198522623) internal successors, (14233), 5415 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:22,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14233 transitions. [2022-02-10 22:29:22,112 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14233 transitions. Word has length 137 [2022-02-10 22:29:22,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:22,112 INFO L470 AbstractCegarLoop]: Abstraction has 5416 states and 14233 transitions. [2022-02-10 22:29:22,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:22,112 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14233 transitions. [2022-02-10 22:29:22,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:29:22,117 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:22,118 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:22,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-02-10 22:29:22,118 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:22,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:22,118 INFO L85 PathProgramCache]: Analyzing trace with hash -722516667, now seen corresponding path program 43 times [2022-02-10 22:29:22,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:22,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520436109] [2022-02-10 22:29:22,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:22,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:22,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:22,644 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:22,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520436109] [2022-02-10 22:29:22,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520436109] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:22,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:22,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:29:22,645 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833576825] [2022-02-10 22:29:22,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:22,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:29:22,645 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:22,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:29:22,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:29:22,646 INFO L87 Difference]: Start difference. First operand 5416 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:27,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:27,993 INFO L93 Difference]: Finished difference Result 6584 states and 17244 transitions. [2022-02-10 22:29:27,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-10 22:29:27,994 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:29:27,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:28,002 INFO L225 Difference]: With dead ends: 6584 [2022-02-10 22:29:28,002 INFO L226 Difference]: Without dead ends: 6169 [2022-02-10 22:29:28,003 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1659 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1876, Invalid=6134, Unknown=0, NotChecked=0, Total=8010 [2022-02-10 22:29:28,003 INFO L934 BasicCegarLoop]: 551 mSDtfsCounter, 1258 mSDsluCounter, 9367 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 9702 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:28,003 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1258 Valid, 9702 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:29:28,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states. [2022-02-10 22:29:28,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 5428. [2022-02-10 22:29:28,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 2.626497143910079) internal successors, (14254), 5427 states have internal predecessors, (14254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:28,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 14254 transitions. [2022-02-10 22:29:28,060 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 14254 transitions. Word has length 137 [2022-02-10 22:29:28,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:28,060 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 14254 transitions. [2022-02-10 22:29:28,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:28,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 14254 transitions. [2022-02-10 22:29:28,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:29:28,065 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:28,065 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:28,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-02-10 22:29:28,065 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:28,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:28,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1108809227, now seen corresponding path program 44 times [2022-02-10 22:29:28,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:28,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473353913] [2022-02-10 22:29:28,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:28,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:28,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:28,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:28,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473353913] [2022-02-10 22:29:28,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473353913] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:28,545 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:28,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:29:28,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474020028] [2022-02-10 22:29:28,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:28,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:29:28,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:28,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:29:28,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:29:28,546 INFO L87 Difference]: Start difference. First operand 5428 states and 14254 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:33,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:33,248 INFO L93 Difference]: Finished difference Result 6433 states and 16848 transitions. [2022-02-10 22:29:33,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 22:29:33,248 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:29:33,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:33,256 INFO L225 Difference]: With dead ends: 6433 [2022-02-10 22:29:33,256 INFO L226 Difference]: Without dead ends: 6111 [2022-02-10 22:29:33,256 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1262 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1532, Invalid=5110, Unknown=0, NotChecked=0, Total=6642 [2022-02-10 22:29:33,257 INFO L934 BasicCegarLoop]: 541 mSDtfsCounter, 1176 mSDsluCounter, 9187 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 9526 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:33,257 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 9526 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1920 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:29:33,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6111 states. [2022-02-10 22:29:33,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6111 to 5432. [2022-02-10 22:29:33,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.6258515927085253) internal successors, (14261), 5431 states have internal predecessors, (14261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:33,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14261 transitions. [2022-02-10 22:29:33,329 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14261 transitions. Word has length 137 [2022-02-10 22:29:33,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:33,329 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14261 transitions. [2022-02-10 22:29:33,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:33,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14261 transitions. [2022-02-10 22:29:33,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:29:33,335 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:33,335 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:33,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-02-10 22:29:33,335 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:33,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:33,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1404412063, now seen corresponding path program 45 times [2022-02-10 22:29:33,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:33,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42460729] [2022-02-10 22:29:33,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:33,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:33,812 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 22:29:33,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:33,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42460729] [2022-02-10 22:29:33,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42460729] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:33,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:33,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:29:33,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630004641] [2022-02-10 22:29:33,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:33,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:29:33,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:33,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:29:33,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:29:33,814 INFO L87 Difference]: Start difference. First operand 5432 states and 14261 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:37,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:37,897 INFO L93 Difference]: Finished difference Result 6344 states and 16618 transitions. [2022-02-10 22:29:37,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:29:37,897 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:29:37,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:37,906 INFO L225 Difference]: With dead ends: 6344 [2022-02-10 22:29:37,906 INFO L226 Difference]: Without dead ends: 6053 [2022-02-10 22:29:37,907 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 912 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1238, Invalid=4164, Unknown=0, NotChecked=0, Total=5402 [2022-02-10 22:29:37,907 INFO L934 BasicCegarLoop]: 532 mSDtfsCounter, 1017 mSDsluCounter, 9607 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 9934 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:37,907 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1017 Valid, 9934 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:29:37,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6053 states. [2022-02-10 22:29:37,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6053 to 5436. [2022-02-10 22:29:37,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.625206991720331) internal successors, (14268), 5435 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:37,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14268 transitions. [2022-02-10 22:29:37,982 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14268 transitions. Word has length 137 [2022-02-10 22:29:37,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:37,982 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14268 transitions. [2022-02-10 22:29:37,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:37,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14268 transitions. [2022-02-10 22:29:37,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:29:37,988 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:37,988 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] [2022-02-10 22:29:37,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-02-10 22:29:37,988 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:37,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:37,989 INFO L85 PathProgramCache]: Analyzing trace with hash 986230409, now seen corresponding path program 46 times [2022-02-10 22:29:37,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:37,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049002552] [2022-02-10 22:29:37,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:37,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:38,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:38,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:38,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049002552] [2022-02-10 22:29:38,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049002552] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:38,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:38,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:29:38,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947094340] [2022-02-10 22:29:38,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:38,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:29:38,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:38,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:29:38,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:29:38,476 INFO L87 Difference]: Start difference. First operand 5436 states and 14268 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:42,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:42,307 INFO L93 Difference]: Finished difference Result 6201 states and 16252 transitions. [2022-02-10 22:29:42,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:29:42,308 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:29:42,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:42,316 INFO L225 Difference]: With dead ends: 6201 [2022-02-10 22:29:42,316 INFO L226 Difference]: Without dead ends: 5944 [2022-02-10 22:29:42,317 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=957, Invalid=2825, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:29:42,317 INFO L934 BasicCegarLoop]: 516 mSDtfsCounter, 991 mSDsluCounter, 8841 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 9192 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:42,317 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 9192 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:29:42,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-02-10 22:29:42,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5440. [2022-02-10 22:29:42,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.624563338849053) internal successors, (14275), 5439 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:42,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14275 transitions. [2022-02-10 22:29:42,385 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14275 transitions. Word has length 137 [2022-02-10 22:29:42,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:42,385 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14275 transitions. [2022-02-10 22:29:42,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:42,385 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14275 transitions. [2022-02-10 22:29:42,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:29:42,390 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:42,390 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:42,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-02-10 22:29:42,390 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:42,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:42,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1815915453, now seen corresponding path program 47 times [2022-02-10 22:29:42,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:42,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972751576] [2022-02-10 22:29:42,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:42,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:42,916 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 22:29:42,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:42,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972751576] [2022-02-10 22:29:42,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972751576] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:42,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:42,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:29:42,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450763508] [2022-02-10 22:29:42,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:42,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:29:42,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:42,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:29:42,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:29:42,917 INFO L87 Difference]: Start difference. First operand 5440 states and 14275 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:47,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:47,492 INFO L93 Difference]: Finished difference Result 6172 states and 16170 transitions. [2022-02-10 22:29:47,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:29:47,492 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:29:47,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:47,498 INFO L225 Difference]: With dead ends: 6172 [2022-02-10 22:29:47,498 INFO L226 Difference]: Without dead ends: 5828 [2022-02-10 22:29:47,499 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=996, Invalid=3294, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:29:47,499 INFO L934 BasicCegarLoop]: 524 mSDtfsCounter, 911 mSDsluCounter, 8791 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 9144 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:47,499 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [911 Valid, 9144 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:29:47,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5828 states. [2022-02-10 22:29:47,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5828 to 5356. [2022-02-10 22:29:47,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 5355 states have (on average 2.637535014005602) internal successors, (14124), 5355 states have internal predecessors, (14124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:47,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 14124 transitions. [2022-02-10 22:29:47,553 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 14124 transitions. Word has length 137 [2022-02-10 22:29:47,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:47,553 INFO L470 AbstractCegarLoop]: Abstraction has 5356 states and 14124 transitions. [2022-02-10 22:29:47,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:47,553 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 14124 transitions. [2022-02-10 22:29:47,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:29:47,558 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:47,558 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:47,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-02-10 22:29:47,558 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:47,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:47,558 INFO L85 PathProgramCache]: Analyzing trace with hash -332532207, now seen corresponding path program 48 times [2022-02-10 22:29:47,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:47,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747408728] [2022-02-10 22:29:47,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:47,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:48,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:48,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:48,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747408728] [2022-02-10 22:29:48,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747408728] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:48,018 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:48,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:29:48,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228449746] [2022-02-10 22:29:48,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:48,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:29:48,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:48,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:29:48,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:29:48,019 INFO L87 Difference]: Start difference. First operand 5356 states and 14124 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:58,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:58,148 INFO L93 Difference]: Finished difference Result 7132 states and 18616 transitions. [2022-02-10 22:29:58,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-10 22:29:58,148 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:29:58,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:58,156 INFO L225 Difference]: With dead ends: 7132 [2022-02-10 22:29:58,156 INFO L226 Difference]: Without dead ends: 6283 [2022-02-10 22:29:58,157 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2070 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=2360, Invalid=7146, Unknown=0, NotChecked=0, Total=9506 [2022-02-10 22:29:58,157 INFO L934 BasicCegarLoop]: 586 mSDtfsCounter, 1604 mSDsluCounter, 10123 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 10456 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:58,157 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1604 Valid, 10456 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2102 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:29:58,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6283 states. [2022-02-10 22:29:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6283 to 5412. [2022-02-10 22:29:58,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 5411 states have (on average 2.629088892995749) internal successors, (14226), 5411 states have internal predecessors, (14226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:58,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 14226 transitions. [2022-02-10 22:29:58,229 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 14226 transitions. Word has length 137 [2022-02-10 22:29:58,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:58,229 INFO L470 AbstractCegarLoop]: Abstraction has 5412 states and 14226 transitions. [2022-02-10 22:29:58,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:58,229 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 14226 transitions. [2022-02-10 22:29:58,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:29:58,235 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:58,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:58,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-02-10 22:29:58,235 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:58,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:58,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1888595271, now seen corresponding path program 49 times [2022-02-10 22:29:58,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:58,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516937996] [2022-02-10 22:29:58,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:58,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:58,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:29:58,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:58,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516937996] [2022-02-10 22:29:58,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516937996] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:29:58,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:29:58,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:29:58,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469006239] [2022-02-10 22:29:58,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:29:58,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:29:58,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:58,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:29:58,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:29:58,795 INFO L87 Difference]: Start difference. First operand 5412 states and 14226 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:06,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:06,111 INFO L93 Difference]: Finished difference Result 6698 states and 17458 transitions. [2022-02-10 22:30:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-10 22:30:06,111 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:30:06,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:06,119 INFO L225 Difference]: With dead ends: 6698 [2022-02-10 22:30:06,119 INFO L226 Difference]: Without dead ends: 6252 [2022-02-10 22:30:06,120 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1960 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=2094, Invalid=6648, Unknown=0, NotChecked=0, Total=8742 [2022-02-10 22:30:06,120 INFO L934 BasicCegarLoop]: 568 mSDtfsCounter, 1536 mSDsluCounter, 8963 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 9320 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:06,120 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1536 Valid, 9320 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:30:06,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6252 states. [2022-02-10 22:30:06,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6252 to 5416. [2022-02-10 22:30:06,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5415 states have (on average 2.6284395198522623) internal successors, (14233), 5415 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:06,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14233 transitions. [2022-02-10 22:30:06,184 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14233 transitions. Word has length 137 [2022-02-10 22:30:06,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:06,184 INFO L470 AbstractCegarLoop]: Abstraction has 5416 states and 14233 transitions. [2022-02-10 22:30:06,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:06,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14233 transitions. [2022-02-10 22:30:06,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:30:06,189 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:06,189 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:06,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-02-10 22:30:06,189 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:06,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:06,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1299734857, now seen corresponding path program 50 times [2022-02-10 22:30:06,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:06,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316349065] [2022-02-10 22:30:06,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:06,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:06,685 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 22:30:06,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:06,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316349065] [2022-02-10 22:30:06,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316349065] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:06,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:06,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:30:06,685 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108029878] [2022-02-10 22:30:06,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:06,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:30:06,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:06,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:30:06,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:30:06,686 INFO L87 Difference]: Start difference. First operand 5416 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:11,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:11,744 INFO L93 Difference]: Finished difference Result 6460 states and 16911 transitions. [2022-02-10 22:30:11,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-10 22:30:11,745 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:30:11,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:11,753 INFO L225 Difference]: With dead ends: 6460 [2022-02-10 22:30:11,753 INFO L226 Difference]: Without dead ends: 6045 [2022-02-10 22:30:11,754 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1745 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1842, Invalid=6168, Unknown=0, NotChecked=0, Total=8010 [2022-02-10 22:30:11,754 INFO L934 BasicCegarLoop]: 560 mSDtfsCounter, 1184 mSDsluCounter, 9027 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 9382 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:11,755 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1184 Valid, 9382 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:30:11,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6045 states. [2022-02-10 22:30:11,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6045 to 5428. [2022-02-10 22:30:11,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 2.626497143910079) internal successors, (14254), 5427 states have internal predecessors, (14254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:11,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 14254 transitions. [2022-02-10 22:30:11,836 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 14254 transitions. Word has length 137 [2022-02-10 22:30:11,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:11,837 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 14254 transitions. [2022-02-10 22:30:11,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:11,837 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 14254 transitions. [2022-02-10 22:30:11,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:30:11,842 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:11,843 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:11,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-02-10 22:30:11,843 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:11,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:11,843 INFO L85 PathProgramCache]: Analyzing trace with hash 531591037, now seen corresponding path program 51 times [2022-02-10 22:30:11,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:11,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60332087] [2022-02-10 22:30:11,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:11,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:12,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:12,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:12,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60332087] [2022-02-10 22:30:12,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60332087] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:12,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:12,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:30:12,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016039486] [2022-02-10 22:30:12,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:12,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:30:12,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:12,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:30:12,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:30:12,341 INFO L87 Difference]: Start difference. First operand 5428 states and 14254 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:18,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:18,239 INFO L93 Difference]: Finished difference Result 6305 states and 16504 transitions. [2022-02-10 22:30:18,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 22:30:18,240 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:30:18,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:18,248 INFO L225 Difference]: With dead ends: 6305 [2022-02-10 22:30:18,248 INFO L226 Difference]: Without dead ends: 5983 [2022-02-10 22:30:18,249 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1506, Invalid=5136, Unknown=0, NotChecked=0, Total=6642 [2022-02-10 22:30:18,249 INFO L934 BasicCegarLoop]: 551 mSDtfsCounter, 1169 mSDsluCounter, 9495 mSDsCounter, 0 mSdLazyCounter, 1948 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 9841 SdHoareTripleChecker+Invalid, 1951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:18,249 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1169 Valid, 9841 Invalid, 1951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1948 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:30:18,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5983 states. [2022-02-10 22:30:18,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5983 to 5432. [2022-02-10 22:30:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.6258515927085253) internal successors, (14261), 5431 states have internal predecessors, (14261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:18,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14261 transitions. [2022-02-10 22:30:18,314 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14261 transitions. Word has length 137 [2022-02-10 22:30:18,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:18,314 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14261 transitions. [2022-02-10 22:30:18,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:18,314 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14261 transitions. [2022-02-10 22:30:18,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:30:18,319 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:18,320 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:18,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-02-10 22:30:18,320 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:18,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:18,320 INFO L85 PathProgramCache]: Analyzing trace with hash 827193873, now seen corresponding path program 52 times [2022-02-10 22:30:18,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:18,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327361763] [2022-02-10 22:30:18,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:18,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:18,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:18,834 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:18,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327361763] [2022-02-10 22:30:18,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327361763] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:18,834 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:18,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:30:18,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365126141] [2022-02-10 22:30:18,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:18,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:30:18,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:18,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:30:18,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:30:18,835 INFO L87 Difference]: Start difference. First operand 5432 states and 14261 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:23,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:23,910 INFO L93 Difference]: Finished difference Result 6212 states and 16263 transitions. [2022-02-10 22:30:23,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:30:23,911 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:30:23,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:23,919 INFO L225 Difference]: With dead ends: 6212 [2022-02-10 22:30:23,919 INFO L226 Difference]: Without dead ends: 5921 [2022-02-10 22:30:23,919 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 974 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1220, Invalid=4182, Unknown=0, NotChecked=0, Total=5402 [2022-02-10 22:30:23,920 INFO L934 BasicCegarLoop]: 543 mSDtfsCounter, 1157 mSDsluCounter, 9072 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 9433 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:23,920 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 9433 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:30:23,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5921 states. [2022-02-10 22:30:23,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5921 to 5436. [2022-02-10 22:30:23,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.625206991720331) internal successors, (14268), 5435 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:23,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14268 transitions. [2022-02-10 22:30:23,986 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14268 transitions. Word has length 137 [2022-02-10 22:30:23,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:23,986 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14268 transitions. [2022-02-10 22:30:23,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:23,986 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14268 transitions. [2022-02-10 22:30:23,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:30:23,991 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:23,992 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:23,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-02-10 22:30:23,992 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:23,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:23,992 INFO L85 PathProgramCache]: Analyzing trace with hash 409012219, now seen corresponding path program 53 times [2022-02-10 22:30:23,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:23,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860908349] [2022-02-10 22:30:23,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:23,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:24,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:24,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:24,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860908349] [2022-02-10 22:30:24,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860908349] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:24,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:24,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:30:24,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125146792] [2022-02-10 22:30:24,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:24,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:30:24,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:24,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:30:24,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:30:24,499 INFO L87 Difference]: Start difference. First operand 5436 states and 14268 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:28,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:28,628 INFO L93 Difference]: Finished difference Result 6057 states and 15864 transitions. [2022-02-10 22:30:28,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:30:28,628 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:30:28,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:28,635 INFO L225 Difference]: With dead ends: 6057 [2022-02-10 22:30:28,635 INFO L226 Difference]: Without dead ends: 5800 [2022-02-10 22:30:28,635 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=953, Invalid=2829, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:30:28,635 INFO L934 BasicCegarLoop]: 528 mSDtfsCounter, 994 mSDsluCounter, 9198 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 9554 SdHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:28,636 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 9554 Invalid, 1893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:30:28,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2022-02-10 22:30:28,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 5440. [2022-02-10 22:30:28,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.624563338849053) internal successors, (14275), 5439 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:28,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14275 transitions. [2022-02-10 22:30:28,706 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14275 transitions. Word has length 137 [2022-02-10 22:30:28,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:28,706 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14275 transitions. [2022-02-10 22:30:28,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:28,706 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14275 transitions. [2022-02-10 22:30:28,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:30:28,712 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:28,712 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:28,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-02-10 22:30:28,712 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:28,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:28,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1901833653, now seen corresponding path program 54 times [2022-02-10 22:30:28,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:28,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454260686] [2022-02-10 22:30:28,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:28,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:29,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:29,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:29,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454260686] [2022-02-10 22:30:29,208 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454260686] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:29,208 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:29,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:30:29,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449970800] [2022-02-10 22:30:29,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:29,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:30:29,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:29,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:30:29,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:30:29,209 INFO L87 Difference]: Start difference. First operand 5440 states and 14275 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:33,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:33,788 INFO L93 Difference]: Finished difference Result 6060 states and 15866 transitions. [2022-02-10 22:30:33,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:30:33,789 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:30:33,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:33,797 INFO L225 Difference]: With dead ends: 6060 [2022-02-10 22:30:33,797 INFO L226 Difference]: Without dead ends: 5720 [2022-02-10 22:30:33,798 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=984, Invalid=3306, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:30:33,798 INFO L934 BasicCegarLoop]: 529 mSDtfsCounter, 1003 mSDsluCounter, 9220 mSDsCounter, 0 mSdLazyCounter, 1900 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 9573 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:33,798 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 9573 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1900 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:30:33,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5720 states. [2022-02-10 22:30:33,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5720 to 5360. [2022-02-10 22:30:33,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5359 states have (on average 2.636872550849039) internal successors, (14131), 5359 states have internal predecessors, (14131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:33,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 14131 transitions. [2022-02-10 22:30:33,873 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 14131 transitions. Word has length 137 [2022-02-10 22:30:33,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:33,873 INFO L470 AbstractCegarLoop]: Abstraction has 5360 states and 14131 transitions. [2022-02-10 22:30:33,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:33,873 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 14131 transitions. [2022-02-10 22:30:33,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:30:33,879 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:33,879 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:33,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-02-10 22:30:33,879 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:33,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:33,880 INFO L85 PathProgramCache]: Analyzing trace with hash 2101574831, now seen corresponding path program 55 times [2022-02-10 22:30:33,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:33,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673905728] [2022-02-10 22:30:33,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:33,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:34,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:34,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:34,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673905728] [2022-02-10 22:30:34,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673905728] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:34,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:34,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:30:34,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051256028] [2022-02-10 22:30:34,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:34,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:30:34,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:34,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:30:34,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:30:34,366 INFO L87 Difference]: Start difference. First operand 5360 states and 14131 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:43,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:43,116 INFO L93 Difference]: Finished difference Result 6376 states and 16694 transitions. [2022-02-10 22:30:43,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-10 22:30:43,116 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:30:43,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:43,122 INFO L225 Difference]: With dead ends: 6376 [2022-02-10 22:30:43,122 INFO L226 Difference]: Without dead ends: 5450 [2022-02-10 22:30:43,123 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2301 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=2645, Invalid=7657, Unknown=0, NotChecked=0, Total=10302 [2022-02-10 22:30:43,124 INFO L934 BasicCegarLoop]: 570 mSDtfsCounter, 1513 mSDsluCounter, 10438 mSDsCounter, 0 mSdLazyCounter, 2092 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 10724 SdHoareTripleChecker+Invalid, 2095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:43,124 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1513 Valid, 10724 Invalid, 2095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2092 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:30:43,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5450 states. [2022-02-10 22:30:43,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5450 to 5314. [2022-02-10 22:30:43,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5314 states, 5313 states have (on average 2.6405044231131187) internal successors, (14029), 5313 states have internal predecessors, (14029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:43,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5314 states to 5314 states and 14029 transitions. [2022-02-10 22:30:43,173 INFO L78 Accepts]: Start accepts. Automaton has 5314 states and 14029 transitions. Word has length 137 [2022-02-10 22:30:43,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:43,173 INFO L470 AbstractCegarLoop]: Abstraction has 5314 states and 14029 transitions. [2022-02-10 22:30:43,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:43,174 INFO L276 IsEmpty]: Start isEmpty. Operand 5314 states and 14029 transitions. [2022-02-10 22:30:43,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:30:43,178 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:43,178 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:43,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-02-10 22:30:43,178 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:43,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:43,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1776317311, now seen corresponding path program 56 times [2022-02-10 22:30:43,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:43,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538478193] [2022-02-10 22:30:43,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:43,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:43,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:43,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:43,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538478193] [2022-02-10 22:30:43,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538478193] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:43,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:43,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:30:43,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30045930] [2022-02-10 22:30:43,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:43,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:30:43,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:43,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:30:43,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:30:43,692 INFO L87 Difference]: Start difference. First operand 5314 states and 14029 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:50,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:50,054 INFO L93 Difference]: Finished difference Result 7714 states and 20217 transitions. [2022-02-10 22:30:50,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-10 22:30:50,054 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:30:50,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:50,064 INFO L225 Difference]: With dead ends: 7714 [2022-02-10 22:30:50,064 INFO L226 Difference]: Without dead ends: 6865 [2022-02-10 22:30:50,065 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2102 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=2447, Invalid=7059, Unknown=0, NotChecked=0, Total=9506 [2022-02-10 22:30:50,065 INFO L934 BasicCegarLoop]: 571 mSDtfsCounter, 1549 mSDsluCounter, 8489 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:50,065 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1549 Valid, 8864 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1922 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:30:50,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6865 states. [2022-02-10 22:30:50,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6865 to 5486. [2022-02-10 22:30:50,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5486 states, 5485 states have (on average 2.634457611668186) internal successors, (14450), 5485 states have internal predecessors, (14450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:50,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5486 states to 5486 states and 14450 transitions. [2022-02-10 22:30:50,131 INFO L78 Accepts]: Start accepts. Automaton has 5486 states and 14450 transitions. Word has length 137 [2022-02-10 22:30:50,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:50,131 INFO L470 AbstractCegarLoop]: Abstraction has 5486 states and 14450 transitions. [2022-02-10 22:30:50,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:50,131 INFO L276 IsEmpty]: Start isEmpty. Operand 5486 states and 14450 transitions. [2022-02-10 22:30:50,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:30:50,136 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:50,136 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:50,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-02-10 22:30:50,136 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:50,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:50,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1890609603, now seen corresponding path program 57 times [2022-02-10 22:30:50,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:50,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86658579] [2022-02-10 22:30:50,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:50,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:50,618 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 22:30:50,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:50,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86658579] [2022-02-10 22:30:50,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86658579] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:50,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:50,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:30:50,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416304907] [2022-02-10 22:30:50,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:50,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:30:50,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:50,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:30:50,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:30:50,619 INFO L87 Difference]: Start difference. First operand 5486 states and 14450 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:57,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:57,433 INFO L93 Difference]: Finished difference Result 7448 states and 19509 transitions. [2022-02-10 22:30:57,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-10 22:30:57,433 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:30:57,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:57,443 INFO L225 Difference]: With dead ends: 7448 [2022-02-10 22:30:57,443 INFO L226 Difference]: Without dead ends: 7002 [2022-02-10 22:30:57,444 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1836 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=2168, Invalid=6574, Unknown=0, NotChecked=0, Total=8742 [2022-02-10 22:30:57,444 INFO L934 BasicCegarLoop]: 556 mSDtfsCounter, 1390 mSDsluCounter, 10176 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 10487 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:57,444 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1390 Valid, 10487 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-10 22:30:57,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7002 states. [2022-02-10 22:30:57,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7002 to 5490. [2022-02-10 22:30:57,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5490 states, 5489 states have (on average 2.6338130807068683) internal successors, (14457), 5489 states have internal predecessors, (14457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:57,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5490 states to 5490 states and 14457 transitions. [2022-02-10 22:30:57,511 INFO L78 Accepts]: Start accepts. Automaton has 5490 states and 14457 transitions. Word has length 137 [2022-02-10 22:30:57,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:57,511 INFO L470 AbstractCegarLoop]: Abstraction has 5490 states and 14457 transitions. [2022-02-10 22:30:57,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:57,511 INFO L276 IsEmpty]: Start isEmpty. Operand 5490 states and 14457 transitions. [2022-02-10 22:30:57,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:30:57,516 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:57,516 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:57,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-02-10 22:30:57,516 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:57,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:57,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1301749189, now seen corresponding path program 58 times [2022-02-10 22:30:57,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:57,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271855624] [2022-02-10 22:30:57,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:57,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:58,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:30:58,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:58,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271855624] [2022-02-10 22:30:58,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271855624] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:30:58,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:30:58,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:30:58,039 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197851752] [2022-02-10 22:30:58,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:30:58,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:30:58,039 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:58,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:30:58,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:30:58,039 INFO L87 Difference]: Start difference. First operand 5490 states and 14457 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:03,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:03,433 INFO L93 Difference]: Finished difference Result 7222 states and 18991 transitions. [2022-02-10 22:31:03,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-10 22:31:03,433 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:31:03,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:03,441 INFO L225 Difference]: With dead ends: 7222 [2022-02-10 22:31:03,441 INFO L226 Difference]: Without dead ends: 6807 [2022-02-10 22:31:03,442 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1701 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1911, Invalid=6099, Unknown=0, NotChecked=0, Total=8010 [2022-02-10 22:31:03,442 INFO L934 BasicCegarLoop]: 549 mSDtfsCounter, 1182 mSDsluCounter, 8355 mSDsCounter, 0 mSdLazyCounter, 1914 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 8727 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:03,442 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1182 Valid, 8727 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1914 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:31:03,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6807 states. [2022-02-10 22:31:03,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6807 to 5502. [2022-02-10 22:31:03,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5502 states, 5501 states have (on average 2.631885111797855) internal successors, (14478), 5501 states have internal predecessors, (14478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:03,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 14478 transitions. [2022-02-10 22:31:03,506 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 14478 transitions. Word has length 137 [2022-02-10 22:31:03,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:03,506 INFO L470 AbstractCegarLoop]: Abstraction has 5502 states and 14478 transitions. [2022-02-10 22:31:03,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:03,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 14478 transitions. [2022-02-10 22:31:03,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:31:03,511 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:03,511 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:03,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-02-10 22:31:03,511 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:03,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:03,512 INFO L85 PathProgramCache]: Analyzing trace with hash 529576705, now seen corresponding path program 59 times [2022-02-10 22:31:03,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:03,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777830365] [2022-02-10 22:31:03,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:03,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:04,049 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 22:31:04,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:04,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777830365] [2022-02-10 22:31:04,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777830365] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:04,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:04,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:31:04,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392811335] [2022-02-10 22:31:04,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:04,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:31:04,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:04,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:31:04,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:31:04,050 INFO L87 Difference]: Start difference. First operand 5502 states and 14478 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:10,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:10,012 INFO L93 Difference]: Finished difference Result 7071 states and 18595 transitions. [2022-02-10 22:31:10,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 22:31:10,012 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:31:10,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:10,021 INFO L225 Difference]: With dead ends: 7071 [2022-02-10 22:31:10,021 INFO L226 Difference]: Without dead ends: 6749 [2022-02-10 22:31:10,022 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1240 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1556, Invalid=5086, Unknown=0, NotChecked=0, Total=6642 [2022-02-10 22:31:10,022 INFO L934 BasicCegarLoop]: 539 mSDtfsCounter, 1130 mSDsluCounter, 9123 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 9471 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:10,022 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 9471 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2036 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:31:10,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6749 states. [2022-02-10 22:31:10,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6749 to 5506. [2022-02-10 22:31:10,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5506 states, 5505 states have (on average 2.631244323342416) internal successors, (14485), 5505 states have internal predecessors, (14485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:10,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5506 states to 5506 states and 14485 transitions. [2022-02-10 22:31:10,088 INFO L78 Accepts]: Start accepts. Automaton has 5506 states and 14485 transitions. Word has length 137 [2022-02-10 22:31:10,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:10,088 INFO L470 AbstractCegarLoop]: Abstraction has 5506 states and 14485 transitions. [2022-02-10 22:31:10,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:10,089 INFO L276 IsEmpty]: Start isEmpty. Operand 5506 states and 14485 transitions. [2022-02-10 22:31:10,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:31:10,094 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:10,094 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:10,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-02-10 22:31:10,094 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:10,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:10,094 INFO L85 PathProgramCache]: Analyzing trace with hash 825179541, now seen corresponding path program 60 times [2022-02-10 22:31:10,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:10,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831609171] [2022-02-10 22:31:10,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:10,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:10,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:31:10,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:10,571 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831609171] [2022-02-10 22:31:10,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831609171] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:10,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:10,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:31:10,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786714152] [2022-02-10 22:31:10,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:10,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:31:10,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:10,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:31:10,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:31:10,571 INFO L87 Difference]: Start difference. First operand 5506 states and 14485 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:15,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:15,257 INFO L93 Difference]: Finished difference Result 6982 states and 18365 transitions. [2022-02-10 22:31:15,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:31:15,257 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:31:15,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:15,265 INFO L225 Difference]: With dead ends: 6982 [2022-02-10 22:31:15,265 INFO L226 Difference]: Without dead ends: 6691 [2022-02-10 22:31:15,265 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 894 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1254, Invalid=4148, Unknown=0, NotChecked=0, Total=5402 [2022-02-10 22:31:15,265 INFO L934 BasicCegarLoop]: 530 mSDtfsCounter, 1040 mSDsluCounter, 9081 mSDsCounter, 0 mSdLazyCounter, 2026 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 9433 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:15,265 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1040 Valid, 9433 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2026 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:31:15,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6691 states. [2022-02-10 22:31:15,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6691 to 5510. [2022-02-10 22:31:15,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5510 states, 5509 states have (on average 2.6306044654202214) internal successors, (14492), 5509 states have internal predecessors, (14492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:15,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5510 states to 5510 states and 14492 transitions. [2022-02-10 22:31:15,321 INFO L78 Accepts]: Start accepts. Automaton has 5510 states and 14492 transitions. Word has length 137 [2022-02-10 22:31:15,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:15,322 INFO L470 AbstractCegarLoop]: Abstraction has 5510 states and 14492 transitions. [2022-02-10 22:31:15,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:15,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5510 states and 14492 transitions. [2022-02-10 22:31:15,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:31:15,327 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:15,327 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:15,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-02-10 22:31:15,327 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:15,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:15,327 INFO L85 PathProgramCache]: Analyzing trace with hash 406997887, now seen corresponding path program 61 times [2022-02-10 22:31:15,327 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:15,327 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075181372] [2022-02-10 22:31:15,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:15,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:15,823 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 22:31:15,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:15,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075181372] [2022-02-10 22:31:15,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075181372] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:15,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:15,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:31:15,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022633899] [2022-02-10 22:31:15,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:15,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:31:15,823 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:15,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:31:15,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:31:15,824 INFO L87 Difference]: Start difference. First operand 5510 states and 14492 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:20,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:20,588 INFO L93 Difference]: Finished difference Result 6839 states and 17999 transitions. [2022-02-10 22:31:20,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:31:20,589 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:31:20,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:20,599 INFO L225 Difference]: With dead ends: 6839 [2022-02-10 22:31:20,600 INFO L226 Difference]: Without dead ends: 6582 [2022-02-10 22:31:20,600 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=961, Invalid=2821, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:31:20,600 INFO L934 BasicCegarLoop]: 514 mSDtfsCounter, 960 mSDsluCounter, 7911 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 8292 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:20,600 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [960 Valid, 8292 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:31:20,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6582 states. [2022-02-10 22:31:20,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6582 to 5514. [2022-02-10 22:31:20,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5514 states, 5513 states have (on average 2.6299655360058045) internal successors, (14499), 5513 states have internal predecessors, (14499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:20,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 14499 transitions. [2022-02-10 22:31:20,685 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 14499 transitions. Word has length 137 [2022-02-10 22:31:20,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:20,685 INFO L470 AbstractCegarLoop]: Abstraction has 5514 states and 14499 transitions. [2022-02-10 22:31:20,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:20,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 14499 transitions. [2022-02-10 22:31:20,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:31:20,691 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:20,691 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:20,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-02-10 22:31:20,691 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:20,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:20,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1899819321, now seen corresponding path program 62 times [2022-02-10 22:31:20,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:20,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603289505] [2022-02-10 22:31:20,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:20,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:21,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:31:21,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:21,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603289505] [2022-02-10 22:31:21,208 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603289505] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:21,208 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:21,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:31:21,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112814349] [2022-02-10 22:31:21,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:21,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:31:21,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:21,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:31:21,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:31:21,209 INFO L87 Difference]: Start difference. First operand 5514 states and 14499 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:25,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:25,452 INFO L93 Difference]: Finished difference Result 6810 states and 17917 transitions. [2022-02-10 22:31:25,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:31:25,452 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:31:25,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:25,460 INFO L225 Difference]: With dead ends: 6810 [2022-02-10 22:31:25,460 INFO L226 Difference]: Without dead ends: 6470 [2022-02-10 22:31:25,461 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1002, Invalid=3288, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:31:25,461 INFO L934 BasicCegarLoop]: 522 mSDtfsCounter, 994 mSDsluCounter, 9156 mSDsCounter, 0 mSdLazyCounter, 2033 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 9509 SdHoareTripleChecker+Invalid, 2036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:25,461 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 9509 Invalid, 2036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2033 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:31:25,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6470 states. [2022-02-10 22:31:25,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6470 to 5434. [2022-02-10 22:31:25,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5433 states have (on average 2.6333517393705135) internal successors, (14307), 5433 states have internal predecessors, (14307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:25,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 14307 transitions. [2022-02-10 22:31:25,533 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 14307 transitions. Word has length 137 [2022-02-10 22:31:25,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:25,534 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 14307 transitions. [2022-02-10 22:31:25,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:25,534 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 14307 transitions. [2022-02-10 22:31:25,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:31:25,539 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:25,540 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:25,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-02-10 22:31:25,540 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:25,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:25,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1050393517, now seen corresponding path program 63 times [2022-02-10 22:31:25,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:25,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808868513] [2022-02-10 22:31:25,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:25,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:26,037 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 22:31:26,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:26,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808868513] [2022-02-10 22:31:26,038 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808868513] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:26,038 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:26,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:31:26,038 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988383219] [2022-02-10 22:31:26,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:26,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:31:26,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:26,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:31:26,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:31:26,039 INFO L87 Difference]: Start difference. First operand 5434 states and 14307 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:32,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:32,655 INFO L93 Difference]: Finished difference Result 7195 states and 18944 transitions. [2022-02-10 22:31:32,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 22:31:32,656 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:31:32,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:32,663 INFO L225 Difference]: With dead ends: 7195 [2022-02-10 22:31:32,663 INFO L226 Difference]: Without dead ends: 6873 [2022-02-10 22:31:32,664 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1237 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=1561, Invalid=4919, Unknown=0, NotChecked=0, Total=6480 [2022-02-10 22:31:32,664 INFO L934 BasicCegarLoop]: 526 mSDtfsCounter, 1110 mSDsluCounter, 8069 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 8431 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:32,664 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1110 Valid, 8431 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:31:32,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6873 states. [2022-02-10 22:31:32,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6873 to 5458. [2022-02-10 22:31:32,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6331317573758475) internal successors, (14369), 5457 states have internal predecessors, (14369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:32,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14369 transitions. [2022-02-10 22:31:32,727 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14369 transitions. Word has length 137 [2022-02-10 22:31:32,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:32,727 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14369 transitions. [2022-02-10 22:31:32,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:32,727 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14369 transitions. [2022-02-10 22:31:32,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:31:32,733 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:32,733 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:32,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-02-10 22:31:32,733 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:32,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:32,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1345996353, now seen corresponding path program 64 times [2022-02-10 22:31:32,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:32,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388911184] [2022-02-10 22:31:32,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:32,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:33,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:31:33,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:33,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388911184] [2022-02-10 22:31:33,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388911184] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:33,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:33,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:31:33,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440470642] [2022-02-10 22:31:33,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:33,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:31:33,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:33,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:31:33,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:31:33,219 INFO L87 Difference]: Start difference. First operand 5458 states and 14369 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:38,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:38,040 INFO L93 Difference]: Finished difference Result 7138 states and 18802 transitions. [2022-02-10 22:31:38,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:31:38,040 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:31:38,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:38,050 INFO L225 Difference]: With dead ends: 7138 [2022-02-10 22:31:38,050 INFO L226 Difference]: Without dead ends: 6847 [2022-02-10 22:31:38,051 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 879 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1284, Invalid=4118, Unknown=0, NotChecked=0, Total=5402 [2022-02-10 22:31:38,051 INFO L934 BasicCegarLoop]: 520 mSDtfsCounter, 1014 mSDsluCounter, 8818 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 9162 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:38,051 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1014 Valid, 9162 Invalid, 1999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:31:38,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6847 states. [2022-02-10 22:31:38,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6847 to 5462. [2022-02-10 22:31:38,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6324848928767626) internal successors, (14376), 5461 states have internal predecessors, (14376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:38,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14376 transitions. [2022-02-10 22:31:38,119 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14376 transitions. Word has length 137 [2022-02-10 22:31:38,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:38,119 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14376 transitions. [2022-02-10 22:31:38,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:38,119 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14376 transitions. [2022-02-10 22:31:38,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:31:38,124 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:38,124 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:38,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-02-10 22:31:38,124 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:38,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:38,125 INFO L85 PathProgramCache]: Analyzing trace with hash 927814699, now seen corresponding path program 65 times [2022-02-10 22:31:38,125 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:38,125 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131117520] [2022-02-10 22:31:38,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:38,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:38,638 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 22:31:38,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:38,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131117520] [2022-02-10 22:31:38,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131117520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:38,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:38,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:31:38,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028116396] [2022-02-10 22:31:38,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:38,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:31:38,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:38,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:31:38,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:31:38,639 INFO L87 Difference]: Start difference. First operand 5462 states and 14376 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:43,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:43,781 INFO L93 Difference]: Finished difference Result 7035 states and 18538 transitions. [2022-02-10 22:31:43,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 22:31:43,781 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:31:43,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:43,791 INFO L225 Difference]: With dead ends: 7035 [2022-02-10 22:31:43,792 INFO L226 Difference]: Without dead ends: 6778 [2022-02-10 22:31:43,792 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1031, Invalid=3001, Unknown=0, NotChecked=0, Total=4032 [2022-02-10 22:31:43,792 INFO L934 BasicCegarLoop]: 508 mSDtfsCounter, 934 mSDsluCounter, 7672 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 8051 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:43,792 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [934 Valid, 8051 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1754 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:31:43,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6778 states. [2022-02-10 22:31:43,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6778 to 5466. [2022-02-10 22:31:43,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.6318389752973466) internal successors, (14383), 5465 states have internal predecessors, (14383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:43,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14383 transitions. [2022-02-10 22:31:43,868 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14383 transitions. Word has length 137 [2022-02-10 22:31:43,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:43,868 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14383 transitions. [2022-02-10 22:31:43,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:43,868 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14383 transitions. [2022-02-10 22:31:43,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:31:43,873 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:43,873 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:43,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-02-10 22:31:43,873 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:43,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:43,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1874331163, now seen corresponding path program 66 times [2022-02-10 22:31:43,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:43,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894123190] [2022-02-10 22:31:43,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:43,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:44,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:31:44,351 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:44,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894123190] [2022-02-10 22:31:44,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894123190] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:44,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:44,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:31:44,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493225124] [2022-02-10 22:31:44,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:44,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:31:44,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:44,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:31:44,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:31:44,352 INFO L87 Difference]: Start difference. First operand 5466 states and 14383 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:48,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:48,507 INFO L93 Difference]: Finished difference Result 7006 states and 18456 transitions. [2022-02-10 22:31:48,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:31:48,508 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:31:48,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:48,515 INFO L225 Difference]: With dead ends: 7006 [2022-02-10 22:31:48,515 INFO L226 Difference]: Without dead ends: 6734 [2022-02-10 22:31:48,516 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1018, Invalid=3272, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:31:48,516 INFO L934 BasicCegarLoop]: 513 mSDtfsCounter, 962 mSDsluCounter, 8871 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 9220 SdHoareTripleChecker+Invalid, 2013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:48,516 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [962 Valid, 9220 Invalid, 2013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2010 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:31:48,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6734 states. [2022-02-10 22:31:48,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6734 to 5454. [2022-02-10 22:31:48,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6330460297084173) internal successors, (14358), 5453 states have internal predecessors, (14358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:48,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14358 transitions. [2022-02-10 22:31:48,573 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14358 transitions. Word has length 137 [2022-02-10 22:31:48,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:48,573 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14358 transitions. [2022-02-10 22:31:48,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:48,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14358 transitions. [2022-02-10 22:31:48,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:31:48,578 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:48,578 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:48,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-02-10 22:31:48,578 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:48,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:48,578 INFO L85 PathProgramCache]: Analyzing trace with hash 640481925, now seen corresponding path program 67 times [2022-02-10 22:31:48,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:48,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535207264] [2022-02-10 22:31:48,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:48,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:49,090 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 22:31:49,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:49,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535207264] [2022-02-10 22:31:49,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535207264] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:49,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:49,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:31:49,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475664787] [2022-02-10 22:31:49,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:49,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:31:49,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:49,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:31:49,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:31:49,091 INFO L87 Difference]: Start difference. First operand 5454 states and 14358 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:55,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:55,364 INFO L93 Difference]: Finished difference Result 6951 states and 18315 transitions. [2022-02-10 22:31:55,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-10 22:31:55,364 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:31:55,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:55,371 INFO L225 Difference]: With dead ends: 6951 [2022-02-10 22:31:55,371 INFO L226 Difference]: Without dead ends: 6666 [2022-02-10 22:31:55,372 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=1293, Invalid=3537, Unknown=0, NotChecked=0, Total=4830 [2022-02-10 22:31:55,372 INFO L934 BasicCegarLoop]: 510 mSDtfsCounter, 1009 mSDsluCounter, 8701 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 9047 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:55,372 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1009 Valid, 9047 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1909 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:31:55,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6666 states. [2022-02-10 22:31:55,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6666 to 5462. [2022-02-10 22:31:55,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6324848928767626) internal successors, (14376), 5461 states have internal predecessors, (14376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:55,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14376 transitions. [2022-02-10 22:31:55,427 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14376 transitions. Word has length 137 [2022-02-10 22:31:55,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:55,427 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14376 transitions. [2022-02-10 22:31:55,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:55,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14376 transitions. [2022-02-10 22:31:55,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:31:55,432 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:55,432 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:55,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-02-10 22:31:55,432 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:55,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:55,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1884444019, now seen corresponding path program 68 times [2022-02-10 22:31:55,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:55,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80807999] [2022-02-10 22:31:55,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:55,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:55,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:31:55,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:55,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80807999] [2022-02-10 22:31:55,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80807999] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:31:55,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:31:55,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:31:55,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727387999] [2022-02-10 22:31:55,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:31:55,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:31:55,897 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:55,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:31:55,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:31:55,898 INFO L87 Difference]: Start difference. First operand 5462 states and 14376 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:00,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:00,437 INFO L93 Difference]: Finished difference Result 6959 states and 18333 transitions. [2022-02-10 22:32:00,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:32:00,437 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:32:00,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:00,447 INFO L225 Difference]: With dead ends: 6959 [2022-02-10 22:32:00,448 INFO L226 Difference]: Without dead ends: 6702 [2022-02-10 22:32:00,448 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1104, Invalid=3186, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:32:00,448 INFO L934 BasicCegarLoop]: 510 mSDtfsCounter, 953 mSDsluCounter, 8710 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 9067 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:00,449 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 9067 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1946 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:00,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2022-02-10 22:32:00,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 5466. [2022-02-10 22:32:00,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.6318389752973466) internal successors, (14383), 5465 states have internal predecessors, (14383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:00,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14383 transitions. [2022-02-10 22:32:00,518 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14383 transitions. Word has length 137 [2022-02-10 22:32:00,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:00,518 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14383 transitions. [2022-02-10 22:32:00,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:00,519 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14383 transitions. [2022-02-10 22:32:00,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:32:00,524 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:00,524 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:00,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-02-10 22:32:00,524 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:00,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:00,524 INFO L85 PathProgramCache]: Analyzing trace with hash -917701843, now seen corresponding path program 69 times [2022-02-10 22:32:00,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:00,524 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192597012] [2022-02-10 22:32:00,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:00,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:01,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:01,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:01,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192597012] [2022-02-10 22:32:01,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192597012] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:01,007 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:01,007 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:32:01,007 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653883907] [2022-02-10 22:32:01,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:01,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:32:01,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:01,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:32:01,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:32:01,008 INFO L87 Difference]: Start difference. First operand 5466 states and 14383 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:05,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:05,023 INFO L93 Difference]: Finished difference Result 6930 states and 18251 transitions. [2022-02-10 22:32:05,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-10 22:32:05,023 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:32:05,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:05,031 INFO L225 Difference]: With dead ends: 6930 [2022-02-10 22:32:05,031 INFO L226 Difference]: Without dead ends: 6662 [2022-02-10 22:32:05,032 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=984, Invalid=3176, Unknown=0, NotChecked=0, Total=4160 [2022-02-10 22:32:05,032 INFO L934 BasicCegarLoop]: 516 mSDtfsCounter, 992 mSDsluCounter, 8714 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 9071 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:05,032 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 9071 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:32:05,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6662 states. [2022-02-10 22:32:05,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6662 to 5458. [2022-02-10 22:32:05,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.632398753894081) internal successors, (14365), 5457 states have internal predecessors, (14365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:05,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14365 transitions. [2022-02-10 22:32:05,099 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14365 transitions. Word has length 137 [2022-02-10 22:32:05,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:05,099 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14365 transitions. [2022-02-10 22:32:05,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:05,099 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14365 transitions. [2022-02-10 22:32:05,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:32:05,105 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:05,105 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:05,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-02-10 22:32:05,105 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:05,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:05,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1910020413, now seen corresponding path program 70 times [2022-02-10 22:32:05,105 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:05,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315524046] [2022-02-10 22:32:05,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:05,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:05,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:05,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:05,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315524046] [2022-02-10 22:32:05,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315524046] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:05,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:05,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:32:05,597 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298148253] [2022-02-10 22:32:05,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:05,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:32:05,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:05,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:32:05,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:32:05,598 INFO L87 Difference]: Start difference. First operand 5458 states and 14365 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:10,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:10,290 INFO L93 Difference]: Finished difference Result 7062 states and 18593 transitions. [2022-02-10 22:32:10,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-10 22:32:10,290 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:32:10,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:10,300 INFO L225 Difference]: With dead ends: 7062 [2022-02-10 22:32:10,300 INFO L226 Difference]: Without dead ends: 6771 [2022-02-10 22:32:10,301 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1251, Invalid=4005, Unknown=0, NotChecked=0, Total=5256 [2022-02-10 22:32:10,301 INFO L934 BasicCegarLoop]: 523 mSDtfsCounter, 1099 mSDsluCounter, 8760 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 9112 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:10,301 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1099 Valid, 9112 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:10,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2022-02-10 22:32:10,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 5462. [2022-02-10 22:32:10,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.63175242629555) internal successors, (14372), 5461 states have internal predecessors, (14372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14372 transitions. [2022-02-10 22:32:10,405 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14372 transitions. Word has length 137 [2022-02-10 22:32:10,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:10,405 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14372 transitions. [2022-02-10 22:32:10,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:10,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14372 transitions. [2022-02-10 22:32:10,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:32:10,411 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:10,412 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:10,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-02-10 22:32:10,412 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:10,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:10,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1966765229, now seen corresponding path program 71 times [2022-02-10 22:32:10,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:10,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483534060] [2022-02-10 22:32:10,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:10,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:10,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:10,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:10,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483534060] [2022-02-10 22:32:10,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483534060] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:10,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:10,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:32:10,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310122890] [2022-02-10 22:32:10,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:10,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:32:10,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:10,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:32:10,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:32:10,894 INFO L87 Difference]: Start difference. First operand 5462 states and 14372 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:15,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:15,291 INFO L93 Difference]: Finished difference Result 6959 states and 18329 transitions. [2022-02-10 22:32:15,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-10 22:32:15,291 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:32:15,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:15,300 INFO L225 Difference]: With dead ends: 6959 [2022-02-10 22:32:15,301 INFO L226 Difference]: Without dead ends: 6702 [2022-02-10 22:32:15,301 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1065, Invalid=3095, Unknown=0, NotChecked=0, Total=4160 [2022-02-10 22:32:15,301 INFO L934 BasicCegarLoop]: 510 mSDtfsCounter, 1011 mSDsluCounter, 9005 mSDsCounter, 0 mSdLazyCounter, 1991 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 9353 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:15,302 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 9353 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1991 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:15,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2022-02-10 22:32:15,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 5466. [2022-02-10 22:32:15,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.631107044830741) internal successors, (14379), 5465 states have internal predecessors, (14379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:15,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14379 transitions. [2022-02-10 22:32:15,376 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14379 transitions. Word has length 137 [2022-02-10 22:32:15,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:15,376 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14379 transitions. [2022-02-10 22:32:15,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:15,377 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14379 transitions. [2022-02-10 22:32:15,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:32:15,382 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:15,382 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:15,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-02-10 22:32:15,382 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:15,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:15,382 INFO L85 PathProgramCache]: Analyzing trace with hash -835380633, now seen corresponding path program 72 times [2022-02-10 22:32:15,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:15,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188837137] [2022-02-10 22:32:15,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:15,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:15,863 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 22:32:15,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:15,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188837137] [2022-02-10 22:32:15,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188837137] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:15,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:15,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:32:15,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240070191] [2022-02-10 22:32:15,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:15,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:32:15,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:15,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:32:15,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:32:15,865 INFO L87 Difference]: Start difference. First operand 5466 states and 14379 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:20,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:20,032 INFO L93 Difference]: Finished difference Result 6930 states and 18247 transitions. [2022-02-10 22:32:20,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:32:20,033 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:32:20,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:20,040 INFO L225 Difference]: With dead ends: 6930 [2022-02-10 22:32:20,041 INFO L226 Difference]: Without dead ends: 6654 [2022-02-10 22:32:20,041 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1023, Invalid=3267, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:32:20,041 INFO L934 BasicCegarLoop]: 518 mSDtfsCounter, 1123 mSDsluCounter, 8549 mSDsCounter, 0 mSdLazyCounter, 1925 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 8915 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:20,041 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1123 Valid, 8915 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1925 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:20,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6654 states. [2022-02-10 22:32:20,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6654 to 5450. [2022-02-10 22:32:20,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5449 states have (on average 2.6329601761791155) internal successors, (14347), 5449 states have internal predecessors, (14347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:20,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14347 transitions. [2022-02-10 22:32:20,101 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14347 transitions. Word has length 137 [2022-02-10 22:32:20,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:20,102 INFO L470 AbstractCegarLoop]: Abstraction has 5450 states and 14347 transitions. [2022-02-10 22:32:20,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:20,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14347 transitions. [2022-02-10 22:32:20,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:32:20,107 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:20,107 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:20,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-02-10 22:32:20,107 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:20,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:20,107 INFO L85 PathProgramCache]: Analyzing trace with hash -854423229, now seen corresponding path program 73 times [2022-02-10 22:32:20,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:20,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006655414] [2022-02-10 22:32:20,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:20,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:20,646 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 22:32:20,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:20,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006655414] [2022-02-10 22:32:20,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006655414] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:20,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:20,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:32:20,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355864058] [2022-02-10 22:32:20,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:20,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:32:20,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:20,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:32:20,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:32:20,648 INFO L87 Difference]: Start difference. First operand 5450 states and 14347 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:26,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:26,907 INFO L93 Difference]: Finished difference Result 7326 states and 19273 transitions. [2022-02-10 22:32:26,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-10 22:32:26,907 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:32:26,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:26,916 INFO L225 Difference]: With dead ends: 7326 [2022-02-10 22:32:26,916 INFO L226 Difference]: Without dead ends: 6911 [2022-02-10 22:32:26,916 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1565 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1905, Invalid=5927, Unknown=0, NotChecked=0, Total=7832 [2022-02-10 22:32:26,917 INFO L934 BasicCegarLoop]: 539 mSDtfsCounter, 1203 mSDsluCounter, 9692 mSDsCounter, 0 mSdLazyCounter, 2151 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 10007 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:26,917 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1203 Valid, 10007 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2151 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:32:26,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6911 states. [2022-02-10 22:32:26,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6911 to 5462. [2022-02-10 22:32:26,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.631019959714338) internal successors, (14368), 5461 states have internal predecessors, (14368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:26,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14368 transitions. [2022-02-10 22:32:26,986 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14368 transitions. Word has length 137 [2022-02-10 22:32:26,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:26,986 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14368 transitions. [2022-02-10 22:32:26,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:26,986 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14368 transitions. [2022-02-10 22:32:26,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:32:26,992 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:26,992 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:26,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-02-10 22:32:26,992 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:26,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:26,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1540201579, now seen corresponding path program 74 times [2022-02-10 22:32:26,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:26,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348834541] [2022-02-10 22:32:26,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:26,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:27,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:27,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:27,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348834541] [2022-02-10 22:32:27,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348834541] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:27,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:27,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:32:27,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399492867] [2022-02-10 22:32:27,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:27,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:32:27,473 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:27,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:32:27,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:32:27,473 INFO L87 Difference]: Start difference. First operand 5462 states and 14368 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:33,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:33,104 INFO L93 Difference]: Finished difference Result 7175 states and 18877 transitions. [2022-02-10 22:32:33,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 22:32:33,104 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:32:33,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:33,114 INFO L225 Difference]: With dead ends: 7175 [2022-02-10 22:32:33,114 INFO L226 Difference]: Without dead ends: 6853 [2022-02-10 22:32:33,115 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1585, Invalid=5057, Unknown=0, NotChecked=0, Total=6642 [2022-02-10 22:32:33,115 INFO L934 BasicCegarLoop]: 532 mSDtfsCounter, 1085 mSDsluCounter, 9656 mSDsCounter, 0 mSdLazyCounter, 2133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 9977 SdHoareTripleChecker+Invalid, 2136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:33,115 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1085 Valid, 9977 Invalid, 2136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2133 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:32:33,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6853 states. [2022-02-10 22:32:33,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6853 to 5466. [2022-02-10 22:32:33,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.6303751143641354) internal successors, (14375), 5465 states have internal predecessors, (14375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:33,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14375 transitions. [2022-02-10 22:32:33,184 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14375 transitions. Word has length 137 [2022-02-10 22:32:33,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:33,184 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14375 transitions. [2022-02-10 22:32:33,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:33,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14375 transitions. [2022-02-10 22:32:33,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:32:33,190 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:33,190 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:33,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-02-10 22:32:33,190 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:33,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:33,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1835804415, now seen corresponding path program 75 times [2022-02-10 22:32:33,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:33,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345872169] [2022-02-10 22:32:33,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:33,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:33,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:33,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:33,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345872169] [2022-02-10 22:32:33,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345872169] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:33,703 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:33,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:32:33,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516934617] [2022-02-10 22:32:33,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:33,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:32:33,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:33,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:32:33,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:32:33,704 INFO L87 Difference]: Start difference. First operand 5466 states and 14375 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:38,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:38,703 INFO L93 Difference]: Finished difference Result 7086 states and 18647 transitions. [2022-02-10 22:32:38,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:32:38,703 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:32:38,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:38,712 INFO L225 Difference]: With dead ends: 7086 [2022-02-10 22:32:38,712 INFO L226 Difference]: Without dead ends: 6795 [2022-02-10 22:32:38,713 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 886 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1274, Invalid=4128, Unknown=0, NotChecked=0, Total=5402 [2022-02-10 22:32:38,713 INFO L934 BasicCegarLoop]: 523 mSDtfsCounter, 1118 mSDsluCounter, 9315 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 9649 SdHoareTripleChecker+Invalid, 2078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:38,713 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1118 Valid, 9649 Invalid, 2078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:32:38,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6795 states. [2022-02-10 22:32:38,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6795 to 5470. [2022-02-10 22:32:38,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5470 states, 5469 states have (on average 2.6297312122874383) internal successors, (14382), 5469 states have internal predecessors, (14382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:38,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 14382 transitions. [2022-02-10 22:32:38,774 INFO L78 Accepts]: Start accepts. Automaton has 5470 states and 14382 transitions. Word has length 137 [2022-02-10 22:32:38,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:38,774 INFO L470 AbstractCegarLoop]: Abstraction has 5470 states and 14382 transitions. [2022-02-10 22:32:38,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:38,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5470 states and 14382 transitions. [2022-02-10 22:32:38,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:32:38,779 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:38,779 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:38,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-02-10 22:32:38,779 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:38,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:38,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1417622761, now seen corresponding path program 76 times [2022-02-10 22:32:38,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:38,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130512972] [2022-02-10 22:32:38,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:38,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:39,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:39,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:39,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130512972] [2022-02-10 22:32:39,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130512972] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:39,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:39,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:32:39,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906879107] [2022-02-10 22:32:39,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:39,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:32:39,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:39,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:32:39,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:32:39,276 INFO L87 Difference]: Start difference. First operand 5470 states and 14382 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:43,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:43,699 INFO L93 Difference]: Finished difference Result 6967 states and 18339 transitions. [2022-02-10 22:32:43,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-10 22:32:43,699 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:32:43,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:43,707 INFO L225 Difference]: With dead ends: 6967 [2022-02-10 22:32:43,707 INFO L226 Difference]: Without dead ends: 6710 [2022-02-10 22:32:43,707 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=993, Invalid=2913, Unknown=0, NotChecked=0, Total=3906 [2022-02-10 22:32:43,708 INFO L934 BasicCegarLoop]: 507 mSDtfsCounter, 993 mSDsluCounter, 8629 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 8984 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:43,708 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [993 Valid, 8984 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1920 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:43,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6710 states. [2022-02-10 22:32:43,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6710 to 5474. [2022-02-10 22:32:43,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.6290882514160425) internal successors, (14389), 5473 states have internal predecessors, (14389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:43,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 14389 transitions. [2022-02-10 22:32:43,765 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 14389 transitions. Word has length 137 [2022-02-10 22:32:43,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:43,765 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 14389 transitions. [2022-02-10 22:32:43,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:43,765 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 14389 transitions. [2022-02-10 22:32:43,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:32:43,770 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:43,770 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:43,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-02-10 22:32:43,771 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:43,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:43,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1384523101, now seen corresponding path program 77 times [2022-02-10 22:32:43,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:43,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610488280] [2022-02-10 22:32:43,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:43,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:44,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:44,245 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:44,245 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610488280] [2022-02-10 22:32:44,245 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610488280] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:44,245 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:44,245 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:32:44,245 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691760438] [2022-02-10 22:32:44,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:44,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:32:44,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:44,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:32:44,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:32:44,246 INFO L87 Difference]: Start difference. First operand 5474 states and 14389 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:48,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:48,305 INFO L93 Difference]: Finished difference Result 6938 states and 18257 transitions. [2022-02-10 22:32:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:32:48,306 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:32:48,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:48,315 INFO L225 Difference]: With dead ends: 6938 [2022-02-10 22:32:48,315 INFO L226 Difference]: Without dead ends: 6642 [2022-02-10 22:32:48,316 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1013, Invalid=3277, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:32:48,316 INFO L934 BasicCegarLoop]: 515 mSDtfsCounter, 976 mSDsluCounter, 8751 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 9106 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:48,316 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 9106 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:32:48,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6642 states. [2022-02-10 22:32:48,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6642 to 5438. [2022-02-10 22:32:48,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 2.632701857642082) internal successors, (14314), 5437 states have internal predecessors, (14314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:48,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 14314 transitions. [2022-02-10 22:32:48,381 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 14314 transitions. Word has length 137 [2022-02-10 22:32:48,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:48,381 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 14314 transitions. [2022-02-10 22:32:48,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:48,382 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 14314 transitions. [2022-02-10 22:32:48,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:32:48,387 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:48,387 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:48,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-02-10 22:32:48,387 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:48,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:48,387 INFO L85 PathProgramCache]: Analyzing trace with hash 2088442029, now seen corresponding path program 78 times [2022-02-10 22:32:48,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:48,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293364142] [2022-02-10 22:32:48,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:48,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:48,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:32:48,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:48,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293364142] [2022-02-10 22:32:48,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293364142] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:32:48,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:32:48,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:32:48,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659142578] [2022-02-10 22:32:48,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:32:48,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:32:48,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:48,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:32:48,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:32:48,915 INFO L87 Difference]: Start difference. First operand 5438 states and 14314 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:06,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:06,742 INFO L93 Difference]: Finished difference Result 7400 states and 19373 transitions. [2022-02-10 22:33:06,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-10 22:33:06,743 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:33:06,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:06,752 INFO L225 Difference]: With dead ends: 7400 [2022-02-10 22:33:06,752 INFO L226 Difference]: Without dead ends: 6954 [2022-02-10 22:33:06,753 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1902 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=2191, Invalid=6551, Unknown=0, NotChecked=0, Total=8742 [2022-02-10 22:33:06,753 INFO L934 BasicCegarLoop]: 547 mSDtfsCounter, 1508 mSDsluCounter, 8629 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 8978 SdHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:06,753 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1508 Valid, 8978 Invalid, 1893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:33:06,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6954 states. [2022-02-10 22:33:06,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6954 to 5442. [2022-02-10 22:33:06,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5442 states, 5441 states have (on average 2.632052931446425) internal successors, (14321), 5441 states have internal predecessors, (14321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:06,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 14321 transitions. [2022-02-10 22:33:06,833 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 14321 transitions. Word has length 137 [2022-02-10 22:33:06,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:06,833 INFO L470 AbstractCegarLoop]: Abstraction has 5442 states and 14321 transitions. [2022-02-10 22:33:06,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:06,833 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 14321 transitions. [2022-02-10 22:33:06,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:33:06,839 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:06,839 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:06,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-02-10 22:33:06,839 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:06,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:06,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1617664853, now seen corresponding path program 79 times [2022-02-10 22:33:06,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:06,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240028875] [2022-02-10 22:33:06,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:06,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:07,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:07,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:07,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240028875] [2022-02-10 22:33:07,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240028875] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:07,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:07,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:33:07,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762956259] [2022-02-10 22:33:07,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:07,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:33:07,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:07,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:33:07,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:33:07,315 INFO L87 Difference]: Start difference. First operand 5442 states and 14321 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:13,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:13,625 INFO L93 Difference]: Finished difference Result 7186 states and 18884 transitions. [2022-02-10 22:33:13,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-10 22:33:13,625 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:33:13,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:13,633 INFO L225 Difference]: With dead ends: 7186 [2022-02-10 22:33:13,634 INFO L226 Difference]: Without dead ends: 6771 [2022-02-10 22:33:13,634 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1624 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1926, Invalid=6084, Unknown=0, NotChecked=0, Total=8010 [2022-02-10 22:33:13,635 INFO L934 BasicCegarLoop]: 541 mSDtfsCounter, 1195 mSDsluCounter, 9650 mSDsCounter, 0 mSdLazyCounter, 2104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 9969 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:13,635 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1195 Valid, 9969 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2104 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:33:13,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2022-02-10 22:33:13,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 5454. [2022-02-10 22:33:13,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6301118650284248) internal successors, (14342), 5453 states have internal predecessors, (14342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:13,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14342 transitions. [2022-02-10 22:33:13,708 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14342 transitions. Word has length 137 [2022-02-10 22:33:13,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:13,708 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14342 transitions. [2022-02-10 22:33:13,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:13,708 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14342 transitions. [2022-02-10 22:33:13,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:33:13,714 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:13,714 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:13,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-02-10 22:33:13,714 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:13,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:13,714 INFO L85 PathProgramCache]: Analyzing trace with hash 213661041, now seen corresponding path program 80 times [2022-02-10 22:33:13,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:13,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213240809] [2022-02-10 22:33:13,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:13,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:14,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:14,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:14,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213240809] [2022-02-10 22:33:14,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213240809] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:14,214 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:14,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:33:14,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586424995] [2022-02-10 22:33:14,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:14,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:33:14,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:14,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:33:14,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:33:14,215 INFO L87 Difference]: Start difference. First operand 5454 states and 14342 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:20,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:20,951 INFO L93 Difference]: Finished difference Result 7039 states and 18499 transitions. [2022-02-10 22:33:20,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 22:33:20,951 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:33:20,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:20,960 INFO L225 Difference]: With dead ends: 7039 [2022-02-10 22:33:20,960 INFO L226 Difference]: Without dead ends: 6717 [2022-02-10 22:33:20,961 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1293 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1573, Invalid=5069, Unknown=0, NotChecked=0, Total=6642 [2022-02-10 22:33:20,961 INFO L934 BasicCegarLoop]: 531 mSDtfsCounter, 1089 mSDsluCounter, 9083 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 9421 SdHoareTripleChecker+Invalid, 1989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:20,961 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1089 Valid, 9421 Invalid, 1989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:33:20,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6717 states. [2022-02-10 22:33:21,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6717 to 5458. [2022-02-10 22:33:21,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6294667399670146) internal successors, (14349), 5457 states have internal predecessors, (14349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:21,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14349 transitions. [2022-02-10 22:33:21,028 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14349 transitions. Word has length 137 [2022-02-10 22:33:21,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:21,028 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14349 transitions. [2022-02-10 22:33:21,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:21,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14349 transitions. [2022-02-10 22:33:21,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:33:21,034 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:21,034 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:21,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-02-10 22:33:21,034 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:21,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:21,034 INFO L85 PathProgramCache]: Analyzing trace with hash 509263877, now seen corresponding path program 81 times [2022-02-10 22:33:21,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:21,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789996368] [2022-02-10 22:33:21,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:21,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:21,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:21,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:21,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789996368] [2022-02-10 22:33:21,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789996368] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:21,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:21,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:33:21,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546757907] [2022-02-10 22:33:21,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:21,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:33:21,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:21,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:33:21,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:33:21,514 INFO L87 Difference]: Start difference. First operand 5458 states and 14349 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:26,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:26,535 INFO L93 Difference]: Finished difference Result 6954 states and 18280 transitions. [2022-02-10 22:33:26,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:33:26,536 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:33:26,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:26,545 INFO L225 Difference]: With dead ends: 6954 [2022-02-10 22:33:26,545 INFO L226 Difference]: Without dead ends: 6663 [2022-02-10 22:33:26,545 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 889 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1264, Invalid=4138, Unknown=0, NotChecked=0, Total=5402 [2022-02-10 22:33:26,545 INFO L934 BasicCegarLoop]: 522 mSDtfsCounter, 1022 mSDsluCounter, 9415 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 9745 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:26,545 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 9745 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-10 22:33:26,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6663 states. [2022-02-10 22:33:26,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6663 to 5462. [2022-02-10 22:33:26,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6288225599707014) internal successors, (14356), 5461 states have internal predecessors, (14356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:26,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14356 transitions. [2022-02-10 22:33:26,618 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14356 transitions. Word has length 137 [2022-02-10 22:33:26,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:26,618 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14356 transitions. [2022-02-10 22:33:26,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:26,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14356 transitions. [2022-02-10 22:33:26,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:33:26,624 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:26,624 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:26,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-02-10 22:33:26,624 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:26,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:26,624 INFO L85 PathProgramCache]: Analyzing trace with hash 91082223, now seen corresponding path program 82 times [2022-02-10 22:33:26,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:26,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433498178] [2022-02-10 22:33:26,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:26,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:27,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:27,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:27,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433498178] [2022-02-10 22:33:27,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433498178] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:27,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:27,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:33:27,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928412044] [2022-02-10 22:33:27,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:27,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:33:27,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:27,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:33:27,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:33:27,120 INFO L87 Difference]: Start difference. First operand 5462 states and 14356 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:30,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:30,495 INFO L93 Difference]: Finished difference Result 6823 states and 17947 transitions. [2022-02-10 22:33:30,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-10 22:33:30,495 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:33:30,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:30,506 INFO L225 Difference]: With dead ends: 6823 [2022-02-10 22:33:30,506 INFO L226 Difference]: Without dead ends: 6566 [2022-02-10 22:33:30,507 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=963, Invalid=2819, Unknown=0, NotChecked=0, Total=3782 [2022-02-10 22:33:30,507 INFO L934 BasicCegarLoop]: 507 mSDtfsCounter, 951 mSDsluCounter, 8368 mSDsCounter, 0 mSdLazyCounter, 1815 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 8728 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:30,507 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [951 Valid, 8728 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1815 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:33:30,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6566 states. [2022-02-10 22:33:30,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6566 to 5466. [2022-02-10 22:33:30,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.628179322964318) internal successors, (14363), 5465 states have internal predecessors, (14363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:30,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14363 transitions. [2022-02-10 22:33:30,595 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14363 transitions. Word has length 137 [2022-02-10 22:33:30,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:30,595 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14363 transitions. [2022-02-10 22:33:30,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:30,596 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14363 transitions. [2022-02-10 22:33:30,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:33:30,602 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:30,602 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:30,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-02-10 22:33:30,602 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:30,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:30,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1583903657, now seen corresponding path program 83 times [2022-02-10 22:33:30,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:30,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661394115] [2022-02-10 22:33:30,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:30,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:31,090 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 22:33:31,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:31,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661394115] [2022-02-10 22:33:31,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661394115] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:31,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:31,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:33:31,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729194409] [2022-02-10 22:33:31,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:31,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:33:31,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:31,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:33:31,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:33:31,092 INFO L87 Difference]: Start difference. First operand 5466 states and 14363 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:35,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:35,129 INFO L93 Difference]: Finished difference Result 6762 states and 17781 transitions. [2022-02-10 22:33:35,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:33:35,130 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:33:35,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:35,137 INFO L225 Difference]: With dead ends: 6762 [2022-02-10 22:33:35,138 INFO L226 Difference]: Without dead ends: 6418 [2022-02-10 22:33:35,138 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1008, Invalid=3282, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:33:35,138 INFO L934 BasicCegarLoop]: 507 mSDtfsCounter, 1124 mSDsluCounter, 8486 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 8841 SdHoareTripleChecker+Invalid, 1854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:35,138 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 8841 Invalid, 1854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:33:35,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6418 states. [2022-02-10 22:33:35,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6418 to 5382. [2022-02-10 22:33:35,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 2.632224493588552) internal successors, (14164), 5381 states have internal predecessors, (14164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:35,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 14164 transitions. [2022-02-10 22:33:35,209 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 14164 transitions. Word has length 137 [2022-02-10 22:33:35,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:35,209 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 14164 transitions. [2022-02-10 22:33:35,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:35,209 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 14164 transitions. [2022-02-10 22:33:35,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:33:35,215 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:35,215 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:35,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-02-10 22:33:35,215 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:35,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:35,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1678521553, now seen corresponding path program 84 times [2022-02-10 22:33:35,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:35,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439781672] [2022-02-10 22:33:35,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:35,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:35,700 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 22:33:35,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:35,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439781672] [2022-02-10 22:33:35,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439781672] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:35,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:35,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:33:35,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844112820] [2022-02-10 22:33:35,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:35,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:33:35,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:35,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:33:35,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:33:35,701 INFO L87 Difference]: Start difference. First operand 5382 states and 14164 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:40,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:40,557 INFO L93 Difference]: Finished difference Result 6479 states and 17049 transitions. [2022-02-10 22:33:40,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-10 22:33:40,558 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:33:40,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:40,568 INFO L225 Difference]: With dead ends: 6479 [2022-02-10 22:33:40,568 INFO L226 Difference]: Without dead ends: 6166 [2022-02-10 22:33:40,569 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1635, Invalid=4371, Unknown=0, NotChecked=0, Total=6006 [2022-02-10 22:33:40,569 INFO L934 BasicCegarLoop]: 503 mSDtfsCounter, 1015 mSDsluCounter, 7803 mSDsCounter, 0 mSdLazyCounter, 1692 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 8155 SdHoareTripleChecker+Invalid, 1695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:40,569 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1015 Valid, 8155 Invalid, 1695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1692 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-10 22:33:40,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6166 states. [2022-02-10 22:33:40,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6166 to 5410. [2022-02-10 22:33:40,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.63209465705306) internal successors, (14237), 5409 states have internal predecessors, (14237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:40,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14237 transitions. [2022-02-10 22:33:40,651 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14237 transitions. Word has length 137 [2022-02-10 22:33:40,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:40,651 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14237 transitions. [2022-02-10 22:33:40,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:40,651 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14237 transitions. [2022-02-10 22:33:40,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:33:40,657 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:40,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:40,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-02-10 22:33:40,657 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:40,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:40,657 INFO L85 PathProgramCache]: Analyzing trace with hash 510229385, now seen corresponding path program 85 times [2022-02-10 22:33:40,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:40,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064174641] [2022-02-10 22:33:40,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:40,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:41,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:41,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:41,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064174641] [2022-02-10 22:33:41,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064174641] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:41,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:41,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:33:41,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753216083] [2022-02-10 22:33:41,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:41,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:33:41,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:41,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:33:41,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:33:41,138 INFO L87 Difference]: Start difference. First operand 5410 states and 14237 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:46,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:46,642 INFO L93 Difference]: Finished difference Result 6551 states and 17235 transitions. [2022-02-10 22:33:46,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-10 22:33:46,642 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:33:46,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:46,652 INFO L225 Difference]: With dead ends: 6551 [2022-02-10 22:33:46,652 INFO L226 Difference]: Without dead ends: 6266 [2022-02-10 22:33:46,652 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 806 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1418, Invalid=3984, Unknown=0, NotChecked=0, Total=5402 [2022-02-10 22:33:46,653 INFO L934 BasicCegarLoop]: 503 mSDtfsCounter, 1037 mSDsluCounter, 9236 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 9560 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:46,653 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1037 Valid, 9560 Invalid, 2003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2000 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:33:46,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6266 states. [2022-02-10 22:33:46,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6266 to 5414. [2022-02-10 22:33:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.631442822833918) internal successors, (14244), 5413 states have internal predecessors, (14244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:46,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14244 transitions. [2022-02-10 22:33:46,725 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14244 transitions. Word has length 137 [2022-02-10 22:33:46,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:46,726 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14244 transitions. [2022-02-10 22:33:46,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:46,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14244 transitions. [2022-02-10 22:33:46,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:33:46,731 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:46,731 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:46,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-02-10 22:33:46,731 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:46,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:46,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1754191479, now seen corresponding path program 86 times [2022-02-10 22:33:46,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:46,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256371693] [2022-02-10 22:33:46,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:46,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:47,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:47,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:47,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256371693] [2022-02-10 22:33:47,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256371693] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:47,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:47,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:33:47,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887309299] [2022-02-10 22:33:47,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:47,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:33:47,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:47,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:33:47,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:33:47,233 INFO L87 Difference]: Start difference. First operand 5414 states and 14244 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:51,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:51,575 INFO L93 Difference]: Finished difference Result 6471 states and 17023 transitions. [2022-02-10 22:33:51,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:33:51,576 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:33:51,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:51,583 INFO L225 Difference]: With dead ends: 6471 [2022-02-10 22:33:51,583 INFO L226 Difference]: Without dead ends: 6214 [2022-02-10 22:33:51,584 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1086, Invalid=3204, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:33:51,584 INFO L934 BasicCegarLoop]: 502 mSDtfsCounter, 1029 mSDsluCounter, 8454 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 8808 SdHoareTripleChecker+Invalid, 1888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:51,584 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1029 Valid, 8808 Invalid, 1888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:33:51,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6214 states. [2022-02-10 22:33:51,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6214 to 5418. [2022-02-10 22:33:51,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.6307919512645377) internal successors, (14251), 5417 states have internal predecessors, (14251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:51,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14251 transitions. [2022-02-10 22:33:51,643 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14251 transitions. Word has length 137 [2022-02-10 22:33:51,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:51,643 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14251 transitions. [2022-02-10 22:33:51,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:51,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14251 transitions. [2022-02-10 22:33:51,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:33:51,649 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:51,649 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:51,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-02-10 22:33:51,649 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:51,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:51,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1047954383, now seen corresponding path program 87 times [2022-02-10 22:33:51,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:51,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67984822] [2022-02-10 22:33:51,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:51,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:52,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:52,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:52,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67984822] [2022-02-10 22:33:52,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67984822] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:52,125 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:52,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:33:52,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391268543] [2022-02-10 22:33:52,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:52,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:33:52,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:52,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:33:52,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:33:52,126 INFO L87 Difference]: Start difference. First operand 5418 states and 14251 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:56,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:56,287 INFO L93 Difference]: Finished difference Result 6434 states and 16919 transitions. [2022-02-10 22:33:56,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 22:33:56,287 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:33:56,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:56,296 INFO L225 Difference]: With dead ends: 6434 [2022-02-10 22:33:56,296 INFO L226 Difference]: Without dead ends: 6162 [2022-02-10 22:33:56,297 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=968, Invalid=3064, Unknown=0, NotChecked=0, Total=4032 [2022-02-10 22:33:56,297 INFO L934 BasicCegarLoop]: 501 mSDtfsCounter, 978 mSDsluCounter, 8646 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 8989 SdHoareTripleChecker+Invalid, 1914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:56,297 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 8989 Invalid, 1914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1911 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:33:56,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6162 states. [2022-02-10 22:33:56,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6162 to 5406. [2022-02-10 22:33:56,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 2.632007400555042) internal successors, (14226), 5405 states have internal predecessors, (14226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:56,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 14226 transitions. [2022-02-10 22:33:56,366 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 14226 transitions. Word has length 137 [2022-02-10 22:33:56,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:56,366 INFO L470 AbstractCegarLoop]: Abstraction has 5406 states and 14226 transitions. [2022-02-10 22:33:56,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:56,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 14226 transitions. [2022-02-10 22:33:56,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:33:56,372 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:56,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:56,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-02-10 22:33:56,372 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:56,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:56,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1936839657, now seen corresponding path program 88 times [2022-02-10 22:33:56,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:56,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239285719] [2022-02-10 22:33:56,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:56,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:56,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:33:56,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:56,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239285719] [2022-02-10 22:33:56,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239285719] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:33:56,888 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:33:56,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:33:56,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308696214] [2022-02-10 22:33:56,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:33:56,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:33:56,888 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:56,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:33:56,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:33:56,889 INFO L87 Difference]: Start difference. First operand 5406 states and 14226 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:02,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:02,292 INFO L93 Difference]: Finished difference Result 6563 states and 17268 transitions. [2022-02-10 22:34:02,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-10 22:34:02,292 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:34:02,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:02,303 INFO L225 Difference]: With dead ends: 6563 [2022-02-10 22:34:02,303 INFO L226 Difference]: Without dead ends: 6278 [2022-02-10 22:34:02,304 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1385, Invalid=3871, Unknown=0, NotChecked=0, Total=5256 [2022-02-10 22:34:02,304 INFO L934 BasicCegarLoop]: 502 mSDtfsCounter, 1103 mSDsluCounter, 8418 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 8764 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:02,304 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1103 Valid, 8764 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1840 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:34:02,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6278 states. [2022-02-10 22:34:02,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6278 to 5414. [2022-02-10 22:34:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.631442822833918) internal successors, (14244), 5413 states have internal predecessors, (14244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:02,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14244 transitions. [2022-02-10 22:34:02,385 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14244 transitions. Word has length 137 [2022-02-10 22:34:02,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:02,385 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14244 transitions. [2022-02-10 22:34:02,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:02,385 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14244 transitions. [2022-02-10 22:34:02,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:34:02,391 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:02,391 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:34:02,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-02-10 22:34:02,392 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:02,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:02,392 INFO L85 PathProgramCache]: Analyzing trace with hash -692877563, now seen corresponding path program 89 times [2022-02-10 22:34:02,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:02,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297344414] [2022-02-10 22:34:02,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:02,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:34:02,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:34:02,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:34:02,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297344414] [2022-02-10 22:34:02,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297344414] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:34:02,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:34:02,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-10 22:34:02,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68580689] [2022-02-10 22:34:02,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:34:02,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-10 22:34:02,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:34:02,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-10 22:34:02,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:34:02,869 INFO L87 Difference]: Start difference. First operand 5414 states and 14244 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:07,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:07,277 INFO L93 Difference]: Finished difference Result 6511 states and 17133 transitions. [2022-02-10 22:34:07,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-10 22:34:07,278 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-02-10 22:34:07,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:34:07,286 INFO L225 Difference]: With dead ends: 6511 [2022-02-10 22:34:07,286 INFO L226 Difference]: Without dead ends: 6254 [2022-02-10 22:34:07,286 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1091, Invalid=3199, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:34:07,286 INFO L934 BasicCegarLoop]: 502 mSDtfsCounter, 926 mSDsluCounter, 8536 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 8888 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:07,286 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [926 Valid, 8888 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1891 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-10 22:34:07,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6254 states. [2022-02-10 22:34:07,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6254 to 5418. [2022-02-10 22:34:07,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.6307919512645377) internal successors, (14251), 5417 states have internal predecessors, (14251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:07,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14251 transitions. [2022-02-10 22:34:07,347 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14251 transitions. Word has length 137 [2022-02-10 22:34:07,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:34:07,348 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14251 transitions. [2022-02-10 22:34:07,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:07,348 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14251 transitions. [2022-02-10 22:34:07,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-02-10 22:34:07,352 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:34:07,352 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:34:07,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-02-10 22:34:07,353 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:34:07,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:34:07,353 INFO L85 PathProgramCache]: Analyzing trace with hash 799943871, now seen corresponding path program 90 times [2022-02-10 22:34:07,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:34:07,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672598522] [2022-02-10 22:34:07,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:34:07,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:34:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-02-10 22:34:07,823 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-10 22:34:07,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-02-10 22:34:07,823 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 138 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 27 known predicates. [2022-02-10 22:34:07,824 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-10 22:34:07,825 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-10 22:34:07,827 INFO L733 BasicCegarLoop]: Path program histogram: [90, 78, 35, 35, 3, 3, 2, 1, 1] [2022-02-10 22:34:07,828 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 22:34:07,828 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 22:34:07,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 10:34:07 BasicIcfg [2022-02-10 22:34:07,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 22:34:07,830 INFO L158 Benchmark]: Toolchain (without parser) took 718864.57ms. Allocated memory was 198.2MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 140.5MB in the beginning and 1.1GB in the end (delta: -923.0MB). Peak memory consumption was 712.3MB. Max. memory is 8.0GB. [2022-02-10 22:34:07,830 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 198.2MB. Free memory is still 157.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 22:34:07,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.51ms. Allocated memory was 198.2MB in the beginning and 246.4MB in the end (delta: 48.2MB). Free memory was 140.4MB in the beginning and 216.7MB in the end (delta: -76.3MB). Peak memory consumption was 6.7MB. Max. memory is 8.0GB. [2022-02-10 22:34:07,830 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.44ms. Allocated memory is still 246.4MB. Free memory was 216.7MB in the beginning and 214.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 22:34:07,830 INFO L158 Benchmark]: Boogie Preprocessor took 25.28ms. Allocated memory is still 246.4MB. Free memory was 214.6MB in the beginning and 213.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 22:34:07,830 INFO L158 Benchmark]: RCFGBuilder took 356.09ms. Allocated memory is still 246.4MB. Free memory was 213.0MB in the beginning and 197.8MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-02-10 22:34:07,830 INFO L158 Benchmark]: TraceAbstraction took 718259.20ms. Allocated memory was 246.4MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 197.3MB in the beginning and 1.1GB in the end (delta: -866.3MB). Peak memory consumption was 721.3MB. Max. memory is 8.0GB. [2022-02-10 22:34:07,830 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2022-02-10 22:34:07,831 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 198.2MB. Free memory is still 157.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 190.51ms. Allocated memory was 198.2MB in the beginning and 246.4MB in the end (delta: 48.2MB). Free memory was 140.4MB in the beginning and 216.7MB in the end (delta: -76.3MB). Peak memory consumption was 6.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.44ms. Allocated memory is still 246.4MB. Free memory was 216.7MB in the beginning and 214.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.28ms. Allocated memory is still 246.4MB. Free memory was 214.6MB in the beginning and 213.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 356.09ms. Allocated memory is still 246.4MB. Free memory was 213.0MB in the beginning and 197.8MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 718259.20ms. Allocated memory was 246.4MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 197.3MB in the beginning and 1.1GB in the end (delta: -866.3MB). Peak memory consumption was 721.3MB. 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: 72]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 138 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 27 known predicates. - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 138 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 27 known predicates. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 138 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 27 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 246 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 718.1s, OverallIterations: 248, TraceHistogramMax: 1, PathProgramHistogramMax: 90, EmptinessCheckTime: 1.8s, AutomataDifference: 625.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179426 SdHoareTripleChecker+Valid, 105.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179426 mSDsluCounter, 1314580 SdHoareTripleChecker+Invalid, 89.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1250908 mSDsCounter, 835 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 247796 IncrementalHoareTripleChecker+Invalid, 248631 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 835 mSolverCounterUnsat, 94288 mSDtfsCounter, 247796 mSolverCounterSat, 2.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14692 GetRequests, 2756 SyntacticMatches, 0 SemanticMatches, 11936 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130713 ImplicationChecksByTransitivity, 538.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7151occurred in iteration=0, InterpolantAutomatonStates: 9046, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 22.6s AutomataMinimizationTime, 247 MinimizatonAttempts, 341639 StatesRemovedByMinimization, 246 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 64.8s InterpolantComputationTime, 28187 NumberOfCodeBlocks, 28187 NumberOfCodeBlocksAsserted, 247 NumberOfCheckSat, 27940 ConstructedInterpolants, 0 QuantifiedInterpolants, 259733 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 247 InterpolantComputations, 247 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